4. CHEMICAL AND PHYSICAL INFORMATION 443 4. CHEMICAL AND PHYSICAL INFORMATION 4.1 CHEMICAL IDENTITY...
24
PCBs 443 4. CHEMICAL AND PHYSICAL INFORMATION 4.1 CHEMICAL IDENTITY PCBs are a class of chemical compounds in which 2–10 chlorine atoms are attached to the biphenyl molecule. Monochlorinated biphenyls (i.e., one chlorine atom attached to the biphenyl molecule) are often included when describing PCBs. The general chemical structure of chlorinated biphenyls is shown below. 1 2 3 4 5 6 1' 2' 3' 4' 5' 6' Cl y Cl x It can be seen from the structure that a large number of chlorinated compounds are possible. The 209 possible compounds are called congeners. PCBs can also be categorized by degree of chlorination. The term “homolog” is used to refer to all PCBs with the same number of chlorines (e.g., trichloro- biphenyls). Homologs with different substitution patterns are referred to as isomers. For example, the dichlorophenyl homolog contains 12 isomers. The numbering system for the PCBs is also shown above. Positions 2, 2', 6, and 6' are called ortho positions, positions 3, 3', 5, and 5' are called meta positions, and positions 4 and 4' are called para positions. The benzene rings can rotate around the bond connecting them; the two extreme configurations are planar (the two benzene rings in the same plane) and the nonplanar in which the benzene rings are at a 90E angle to each other. The degree of planarity is largely determined by the number of substitutions in the ortho positions. The replacement of hydrogen atoms in the ortho positions with larger chlorine atoms forces the benzene rings to rotate out of the planar configuration. The benzene rings of non-ortho substituted PCBs, as well as mono-ortho substituted PCBs, may assume a planar configuration and are referred to as planar or coplanar congeners; the benzene rings of other congeners cannot assume a planar or coplanar configuration and are referred to as non-planar congeners. Monsanto Corporation, the major U.S. producer of PCBs from 1930 to 1977, marketed mixtures of PCBs under the trade name Aroclor. The Aroclors are identified by a four-digit numbering code in which the
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Transcript of 4. CHEMICAL AND PHYSICAL INFORMATION 443 4. CHEMICAL AND PHYSICAL INFORMATION 4.1 CHEMICAL IDENTITY...
PCBs 443
4 CHEMICAL AND PHYSICAL INFORMATION
41 CHEMICAL IDENTITY
PCBs are a class of chemical compounds in which 2ndash10 chlorine atoms are attached to the biphenyl
molecule Monochlorinated biphenyls (ie one chlorine atom attached to the biphenyl molecule) are
often included when describing PCBs The general chemical structure of chlorinated biphenyls is shown
below
1
23
4
5 6
1
2 3
4
56
ClyClx
It can be seen from the structure that a large number of chlorinated compounds are possible The
209 possible compounds are called congeners PCBs can also be categorized by degree of chlorination
The term ldquohomologrdquo is used to refer to all PCBs with the same number of chlorines (eg trichloroshy
biphenyls) Homologs with different substitution patterns are referred to as isomers For example the
dichlorophenyl homolog contains 12 isomers
The numbering system for the PCBs is also shown above Positions 2 2 6 and 6 are called ortho
positions positions 3 3 5 and 5 are called meta positions and positions 4 and 4 are called para
positions The benzene rings can rotate around the bond connecting them the two extreme configurations
are planar (the two benzene rings in the same plane) and the nonplanar in which the benzene rings are at a
90E angle to each other The degree of planarity is largely determined by the number of substitutions in
the ortho positions The replacement of hydrogen atoms in the ortho positions with larger chlorine atoms
forces the benzene rings to rotate out of the planar configuration The benzene rings of non-ortho
substituted PCBs as well as mono-ortho substituted PCBs may assume a planar configuration and are
referred to as planar or coplanar congeners the benzene rings of other congeners cannot assume a planar
or coplanar configuration and are referred to as non-planar congeners
Monsanto Corporation the major US producer of PCBs from 1930 to 1977 marketed mixtures of PCBs
under the trade name Aroclor The Aroclors are identified by a four-digit numbering code in which the
PCBs 444
4 CHEMICAL AND PHYSICAL INFORMATION
first two digits indicate the type of mixture and the last two digits indicate the approximate chlorine
content by weight percent Thus Aroclor 1242 is a chlorinated biphenyl mixture of varying amounts of
mono- through heptachlorinated homologs with an average chlorine content of 42 The exception to
this code is Aroclor 1016 which contains mono- through hexachlorinated homologs with an average
chlorine content of 41 (Hutzinger et al 1974)
The trade names of some commercial PCB mixtures manufactured in other countries are Clophen
(Germany) Fenclor (Italy) Kanechlor (Japan) and Phenoclor (France) (De Voogt and Brinkman 1989)
The composition of commercial Clophen A-60 and Phenoclor DP-6 is similar to Aroclor 1260 that of
Kanechlor 500 is similar to Aroclor 1254 Fenclor contains 100 decachlorobiphenyl (De Voogt and
Brinkman 1989) The chemical identity of the Aroclors is summarized in Table 4-1 The identity of the
209 PCB congeners is shown in Table 4-2 The congeners are arranged in ascending numerical order
using a numbering system developed by Ballschmiter and Zell (1980) that follow the IUPAC rules of
substituent characterization in biphenyls The resulting PCB numbers also referred to as congener
IUPAC or BZ numbers are widely used for identifying individual congeners
42 PHYSICAL AND CHEMICAL PROPERTIES
Physical and chemical properties of the Aroclors are summarized in Table 4-3 An important property of
PCBs is their general inertness they resist both acids and alkalis and have thermal stability This made
them useful in a wide variety of applications including dielectric fluids in transformers and capacitors
heat transfer fluids and lubricants (Afghan and Chau 1989) In general PCBs are relatively insoluble in
water and the solubility decreases with increased chlorination (see Table 4-3) PCBs are also freely
soluble in nonpolar organic solvents and biological lipids (EPA 1980b) PCBs are combustible liquids
and the products of combustion may be more hazardous than the material itself By-products of
combustion include hydrogen chloride polychlorinated dibenzodioxins (PCDDs) and polychlorinated
dibenzofurans (PCDFs) (NFPA 1994)
The approximate weight percent of chlorobiphenyls in some commercial Aroclors is summarized in
Table 4-4 and the congener composition of Aroclors is shown in Table 4-5 The congener composition
of commercial PCBs may vary from lot to lot even in products from the same manufacturer In addition
no two descriptions of commercial PCB mixtures even from the same lot or a manufactured product are
identical because of slight differences in the conditions of the chlorination process or the use of different
analysis procedures For example a late production Aroclor 1254 lot (Aroclor 1254 ldquoLaterdquo) with greatly
Table 4-1 Chemical Identity of Selected Technical Polychlorinated Biphenyls or Aroclorsab
Characteristic Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248
Synonym(s) PCB-1016 Polychlorinated biphenyl mixture with 415 chlorine
PCB-1221 Polychlorinated biphenyl mixture with 21 chlorine
PCB-1232 Polychlorinated biphenyl mixture with 32 chlorine
PCB-1242 Polychlorinated biphenyl mixture with 415 chlorine
PCB-1248 Polychlorinated biphenyl mixture with 48 chlorine
Registered trade name(s) Aroclorc Aroclor Aroclor Aroclor Aroclor
Chemical formula See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4
Chemical structure See Section 41 See Section 41 See Section 41 See Section 41 See Section 41
Identification numbers
CAS registry 12674-11-2 11104-28-2 11141-16-5 53469-21-9 12672-29-6
NIOSH RTECS TQ1351000 TQ1352000 TQ1354000 TQ1356000 TQ1358000
EPA hazardous wasted 3502e 3502e 3502e 3502e 3502e
OHMTADS 8500400f 8500401f 8500402f 8500403f 8500404f
DOTUNNAIMCO shipping
UN2315IMO92g UN2315IMO92g UN2315IMO92g UN2315IMO92g UN2315IMO92g
HSDB 6352g 6353g 6354g 6355g 6356g
NCI No data No data No data No data No data
PCBs
445 4 C
HEM
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MATIO
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Table 4-1 Chemical Identity of Selected Technical Polychlorinated Biphenyls or Aroclors ab (continued)
Characteristic Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268
Synonym(s) PCB-1254 Polychlorinated biphenyl mixture with 54 chlorine
PCB-1260 Polychlorinated biphenyl mixture with 60 chlorine
PCB-1262 Polychlorinated biphenyl mixture with 615ndash625 chlorine
PCB-1268 Polychlorinated biphenyl mixture with 68 chlorine
Registered trade name(s) Aroclor Aroclor Aroclor Aroclor
Chemical formula See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4
Chemical structure See Section 41 See Section 41 See Section 41 See Section 41
Identification numbers
CAS registry
NIOSH RTECS
11097-69-1
TQ1360000
11096-82-5
TQ1362000
37324-23-5
TQ1364000h
11100-14-4
No data
EPA hazardous wasted 3502e 3502e No data No data
OHMTADS
DOTUNNAIMO shipping
8500405f
UN2315IMO92g
8500406f
UN2315IMO92g
No data
UN2315h
No data
UN2315h
HSDB 6357g 1822g No data No data
NCI C02664i No data No data No data
aAll information obtained from SANSS 1990 and Hutzinger et al 1974 except dDesignation prior to May 19 1980 where noted eEPA 1980a bChemical names used are those currently indexed by the Chemical fEPA-NIH 1990 Abstracts Service gHSDB 2000 cAroclor is the trade name for chlorinated biphenyls made by Monsanto hChemfinder 2000 Chemical Company iNIOSH 1987a
CAS = Chemical Abstracts Services DOTUNNAIMCO = Department of TransportationUnited NationsNorth AmericaInternational Maritime Dangerous Goods Code EPA = Environmental Protection Agency HSDB = Hazardous Substances Data Bank NCI = National Cancer Institute NIOSH = National Institute for Occupational Safety and Health OHMTADS = Oil and Hazardous MaterialsTechnical Assistance Data System PCB = polychlorinated biphenyl RTECS = Registry of Toxic Effects of Chemical Substances
PCBs
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PCBs 447
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs
PCB Noa Structure CAS Nob
Biphenyl 92-52-4 Monochlorobiphenyl 27323-18-8
1 2 2051-60-7 2 3 2051-61-8 3 4 2051-62-9
Dichlorobiphenyl 25512-42-9 4 22N 13029-08-8 5 23 16605-91-7 6 23N 25569-80-6 7 24 33284-50-3 8 24N 34883-43-7 9 25 34883-39-1 10 26 33146-45-1 11 33N 2050-67-1 12 34 2974-92-7 13 34N 2974-90-5 14 35 34883-41-5 15 44N 2050-68-2
Trichlorobiphenyl 25323-68-6 16 22N3 38444-78-9 17 22N4 37680-66-3 18 22N5 37680-65-2 19 22N6 38444-73-4 20 233N 38444-84-7 21 234 55702-46-0 22 234N 38444-85-8 23 235 55720-44-0 24 236 55702-45-9 25 23N4 55712-37-3 26 23N5 38444-81-4 27 23 N6 38444-76-7 28 244N 7012-37-5 29 245 15862-07-4 30 246 35693-92-6 31 24N5 16606-02-3 32 24N6 38444-77-8 33 2N34 38444-86-9
PCBs 448
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
34 2N35 37680-68-5 35 33N4 37680-69-6 36 33N5 38444-87-0 37 344N 38444-90-5 38 345 53555-66-1 39 34N5 38444-88-1
Tetrachlorobiphenyl 26914-33-0 40 22N33N 38444-93-8 41 22N34 52663-59-9 42 22N34N 36559-22-5 43 22N35 70362-46-8 44 22N35N 41464-39-5 45 22N36 70362-45-7 46 22N36N 41464-47-5 47 22N44N 2437-79-8 48 22N45 70362-47-9 49 22N45N 41464-40-8 50 22N46 62796-65-0 51 22N46N 68194-04-7 52 22N55N 35693-99-3 53 22N56N 41464-41-9 54 22N66N 15968-05-5 55 233N4 74338-24-2 56 233N4N 41464-43-1 57 233N5 70424-67-8 58 233N5N 41464-49-7 59 233N6 74472-33-6 60 2344N 33025-41-1 61 2345 33284-53-6 62 2346 54230-22-7 63 234N5 74472-35-8 64 234N6 52663-58-8 65 2356 33284-54-7 66 23N44N 32598-10-0 67 23N45 73575-53-8 68 23N45N 73575-52-7 69 23N46 60233-24-1 70 23N4N5 32598-11-1 71 23N4N6 41464-46-4
PCBs 449
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
72 23N55N 41464-42-0 73 23N5N6 74338-23-1 74 244N5 32690-93-0 75 244N6 32598-12-2 76 2N345 70362-48-0 77 33N44N 32598-13-3 78 33N45 70362-49-1 79 33N45N 41464-48-6 80 33N55N 33284-52-5 81 344N5 70362-50-4
Pentachlorobiphenyl 25429-29-2 82 22N33N4 52663-62-4 83 22N33N5 60145-20-2 84 22N33N6 52663-60-2 85 22N344N 65510-45-4 86 22N345 55312-69-1 87 22N345N 38380-02-8 88 22N346 55215-17-3 89 22N346N 73575-57-2 90 22N34N5 68194-07-0 91 22N34N6 68194-05-8 92 22N355N 52663-61-3 93 22N356 73575-56-1 94 22N356N 73575-55-0 95 22N35N6 38379-99-6 96 22N366N 73575-54-9 97 22N3N45 41464-51-1 98 22N3N46 60233-25-2 99 22N44N5 38380-01-7 100 22N4N4N6 39485-83-1 101 22N455N 37680-73-2 102 22N456N 68194-06-9 103 22N45N6 60145-21-3 104 22N466N 56558-16-8 105 233N44N 32598-14-4 106 233N45 70424-69-0 107 233N4N5 70424-68-9 108 233N45N 70362-41-3 109 233N46 74472-35-8
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
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Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
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Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
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PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 444
4 CHEMICAL AND PHYSICAL INFORMATION
first two digits indicate the type of mixture and the last two digits indicate the approximate chlorine
content by weight percent Thus Aroclor 1242 is a chlorinated biphenyl mixture of varying amounts of
mono- through heptachlorinated homologs with an average chlorine content of 42 The exception to
this code is Aroclor 1016 which contains mono- through hexachlorinated homologs with an average
chlorine content of 41 (Hutzinger et al 1974)
The trade names of some commercial PCB mixtures manufactured in other countries are Clophen
(Germany) Fenclor (Italy) Kanechlor (Japan) and Phenoclor (France) (De Voogt and Brinkman 1989)
The composition of commercial Clophen A-60 and Phenoclor DP-6 is similar to Aroclor 1260 that of
Kanechlor 500 is similar to Aroclor 1254 Fenclor contains 100 decachlorobiphenyl (De Voogt and
Brinkman 1989) The chemical identity of the Aroclors is summarized in Table 4-1 The identity of the
209 PCB congeners is shown in Table 4-2 The congeners are arranged in ascending numerical order
using a numbering system developed by Ballschmiter and Zell (1980) that follow the IUPAC rules of
substituent characterization in biphenyls The resulting PCB numbers also referred to as congener
IUPAC or BZ numbers are widely used for identifying individual congeners
42 PHYSICAL AND CHEMICAL PROPERTIES
Physical and chemical properties of the Aroclors are summarized in Table 4-3 An important property of
PCBs is their general inertness they resist both acids and alkalis and have thermal stability This made
them useful in a wide variety of applications including dielectric fluids in transformers and capacitors
heat transfer fluids and lubricants (Afghan and Chau 1989) In general PCBs are relatively insoluble in
water and the solubility decreases with increased chlorination (see Table 4-3) PCBs are also freely
soluble in nonpolar organic solvents and biological lipids (EPA 1980b) PCBs are combustible liquids
and the products of combustion may be more hazardous than the material itself By-products of
combustion include hydrogen chloride polychlorinated dibenzodioxins (PCDDs) and polychlorinated
dibenzofurans (PCDFs) (NFPA 1994)
The approximate weight percent of chlorobiphenyls in some commercial Aroclors is summarized in
Table 4-4 and the congener composition of Aroclors is shown in Table 4-5 The congener composition
of commercial PCBs may vary from lot to lot even in products from the same manufacturer In addition
no two descriptions of commercial PCB mixtures even from the same lot or a manufactured product are
identical because of slight differences in the conditions of the chlorination process or the use of different
analysis procedures For example a late production Aroclor 1254 lot (Aroclor 1254 ldquoLaterdquo) with greatly
Table 4-1 Chemical Identity of Selected Technical Polychlorinated Biphenyls or Aroclorsab
Characteristic Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248
Synonym(s) PCB-1016 Polychlorinated biphenyl mixture with 415 chlorine
PCB-1221 Polychlorinated biphenyl mixture with 21 chlorine
PCB-1232 Polychlorinated biphenyl mixture with 32 chlorine
PCB-1242 Polychlorinated biphenyl mixture with 415 chlorine
PCB-1248 Polychlorinated biphenyl mixture with 48 chlorine
Registered trade name(s) Aroclorc Aroclor Aroclor Aroclor Aroclor
Chemical formula See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4
Chemical structure See Section 41 See Section 41 See Section 41 See Section 41 See Section 41
Identification numbers
CAS registry 12674-11-2 11104-28-2 11141-16-5 53469-21-9 12672-29-6
NIOSH RTECS TQ1351000 TQ1352000 TQ1354000 TQ1356000 TQ1358000
EPA hazardous wasted 3502e 3502e 3502e 3502e 3502e
OHMTADS 8500400f 8500401f 8500402f 8500403f 8500404f
DOTUNNAIMCO shipping
UN2315IMO92g UN2315IMO92g UN2315IMO92g UN2315IMO92g UN2315IMO92g
HSDB 6352g 6353g 6354g 6355g 6356g
NCI No data No data No data No data No data
PCBs
445 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-1 Chemical Identity of Selected Technical Polychlorinated Biphenyls or Aroclors ab (continued)
Characteristic Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268
Synonym(s) PCB-1254 Polychlorinated biphenyl mixture with 54 chlorine
PCB-1260 Polychlorinated biphenyl mixture with 60 chlorine
PCB-1262 Polychlorinated biphenyl mixture with 615ndash625 chlorine
PCB-1268 Polychlorinated biphenyl mixture with 68 chlorine
Registered trade name(s) Aroclor Aroclor Aroclor Aroclor
Chemical formula See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4
Chemical structure See Section 41 See Section 41 See Section 41 See Section 41
Identification numbers
CAS registry
NIOSH RTECS
11097-69-1
TQ1360000
11096-82-5
TQ1362000
37324-23-5
TQ1364000h
11100-14-4
No data
EPA hazardous wasted 3502e 3502e No data No data
OHMTADS
DOTUNNAIMO shipping
8500405f
UN2315IMO92g
8500406f
UN2315IMO92g
No data
UN2315h
No data
UN2315h
HSDB 6357g 1822g No data No data
NCI C02664i No data No data No data
aAll information obtained from SANSS 1990 and Hutzinger et al 1974 except dDesignation prior to May 19 1980 where noted eEPA 1980a bChemical names used are those currently indexed by the Chemical fEPA-NIH 1990 Abstracts Service gHSDB 2000 cAroclor is the trade name for chlorinated biphenyls made by Monsanto hChemfinder 2000 Chemical Company iNIOSH 1987a
CAS = Chemical Abstracts Services DOTUNNAIMCO = Department of TransportationUnited NationsNorth AmericaInternational Maritime Dangerous Goods Code EPA = Environmental Protection Agency HSDB = Hazardous Substances Data Bank NCI = National Cancer Institute NIOSH = National Institute for Occupational Safety and Health OHMTADS = Oil and Hazardous MaterialsTechnical Assistance Data System PCB = polychlorinated biphenyl RTECS = Registry of Toxic Effects of Chemical Substances
PCBs
446 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 447
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs
PCB Noa Structure CAS Nob
Biphenyl 92-52-4 Monochlorobiphenyl 27323-18-8
1 2 2051-60-7 2 3 2051-61-8 3 4 2051-62-9
Dichlorobiphenyl 25512-42-9 4 22N 13029-08-8 5 23 16605-91-7 6 23N 25569-80-6 7 24 33284-50-3 8 24N 34883-43-7 9 25 34883-39-1 10 26 33146-45-1 11 33N 2050-67-1 12 34 2974-92-7 13 34N 2974-90-5 14 35 34883-41-5 15 44N 2050-68-2
Trichlorobiphenyl 25323-68-6 16 22N3 38444-78-9 17 22N4 37680-66-3 18 22N5 37680-65-2 19 22N6 38444-73-4 20 233N 38444-84-7 21 234 55702-46-0 22 234N 38444-85-8 23 235 55720-44-0 24 236 55702-45-9 25 23N4 55712-37-3 26 23N5 38444-81-4 27 23 N6 38444-76-7 28 244N 7012-37-5 29 245 15862-07-4 30 246 35693-92-6 31 24N5 16606-02-3 32 24N6 38444-77-8 33 2N34 38444-86-9
PCBs 448
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
34 2N35 37680-68-5 35 33N4 37680-69-6 36 33N5 38444-87-0 37 344N 38444-90-5 38 345 53555-66-1 39 34N5 38444-88-1
Tetrachlorobiphenyl 26914-33-0 40 22N33N 38444-93-8 41 22N34 52663-59-9 42 22N34N 36559-22-5 43 22N35 70362-46-8 44 22N35N 41464-39-5 45 22N36 70362-45-7 46 22N36N 41464-47-5 47 22N44N 2437-79-8 48 22N45 70362-47-9 49 22N45N 41464-40-8 50 22N46 62796-65-0 51 22N46N 68194-04-7 52 22N55N 35693-99-3 53 22N56N 41464-41-9 54 22N66N 15968-05-5 55 233N4 74338-24-2 56 233N4N 41464-43-1 57 233N5 70424-67-8 58 233N5N 41464-49-7 59 233N6 74472-33-6 60 2344N 33025-41-1 61 2345 33284-53-6 62 2346 54230-22-7 63 234N5 74472-35-8 64 234N6 52663-58-8 65 2356 33284-54-7 66 23N44N 32598-10-0 67 23N45 73575-53-8 68 23N45N 73575-52-7 69 23N46 60233-24-1 70 23N4N5 32598-11-1 71 23N4N6 41464-46-4
PCBs 449
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
72 23N55N 41464-42-0 73 23N5N6 74338-23-1 74 244N5 32690-93-0 75 244N6 32598-12-2 76 2N345 70362-48-0 77 33N44N 32598-13-3 78 33N45 70362-49-1 79 33N45N 41464-48-6 80 33N55N 33284-52-5 81 344N5 70362-50-4
Pentachlorobiphenyl 25429-29-2 82 22N33N4 52663-62-4 83 22N33N5 60145-20-2 84 22N33N6 52663-60-2 85 22N344N 65510-45-4 86 22N345 55312-69-1 87 22N345N 38380-02-8 88 22N346 55215-17-3 89 22N346N 73575-57-2 90 22N34N5 68194-07-0 91 22N34N6 68194-05-8 92 22N355N 52663-61-3 93 22N356 73575-56-1 94 22N356N 73575-55-0 95 22N35N6 38379-99-6 96 22N366N 73575-54-9 97 22N3N45 41464-51-1 98 22N3N46 60233-25-2 99 22N44N5 38380-01-7 100 22N4N4N6 39485-83-1 101 22N455N 37680-73-2 102 22N456N 68194-06-9 103 22N45N6 60145-21-3 104 22N466N 56558-16-8 105 233N44N 32598-14-4 106 233N45 70424-69-0 107 233N4N5 70424-68-9 108 233N45N 70362-41-3 109 233N46 74472-35-8
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-1 Chemical Identity of Selected Technical Polychlorinated Biphenyls or Aroclorsab
Characteristic Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248
Synonym(s) PCB-1016 Polychlorinated biphenyl mixture with 415 chlorine
PCB-1221 Polychlorinated biphenyl mixture with 21 chlorine
PCB-1232 Polychlorinated biphenyl mixture with 32 chlorine
PCB-1242 Polychlorinated biphenyl mixture with 415 chlorine
PCB-1248 Polychlorinated biphenyl mixture with 48 chlorine
Registered trade name(s) Aroclorc Aroclor Aroclor Aroclor Aroclor
Chemical formula See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4
Chemical structure See Section 41 See Section 41 See Section 41 See Section 41 See Section 41
Identification numbers
CAS registry 12674-11-2 11104-28-2 11141-16-5 53469-21-9 12672-29-6
NIOSH RTECS TQ1351000 TQ1352000 TQ1354000 TQ1356000 TQ1358000
EPA hazardous wasted 3502e 3502e 3502e 3502e 3502e
OHMTADS 8500400f 8500401f 8500402f 8500403f 8500404f
DOTUNNAIMCO shipping
UN2315IMO92g UN2315IMO92g UN2315IMO92g UN2315IMO92g UN2315IMO92g
HSDB 6352g 6353g 6354g 6355g 6356g
NCI No data No data No data No data No data
PCBs
445 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-1 Chemical Identity of Selected Technical Polychlorinated Biphenyls or Aroclors ab (continued)
Characteristic Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268
Synonym(s) PCB-1254 Polychlorinated biphenyl mixture with 54 chlorine
PCB-1260 Polychlorinated biphenyl mixture with 60 chlorine
PCB-1262 Polychlorinated biphenyl mixture with 615ndash625 chlorine
PCB-1268 Polychlorinated biphenyl mixture with 68 chlorine
Registered trade name(s) Aroclor Aroclor Aroclor Aroclor
Chemical formula See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4
Chemical structure See Section 41 See Section 41 See Section 41 See Section 41
Identification numbers
CAS registry
NIOSH RTECS
11097-69-1
TQ1360000
11096-82-5
TQ1362000
37324-23-5
TQ1364000h
11100-14-4
No data
EPA hazardous wasted 3502e 3502e No data No data
OHMTADS
DOTUNNAIMO shipping
8500405f
UN2315IMO92g
8500406f
UN2315IMO92g
No data
UN2315h
No data
UN2315h
HSDB 6357g 1822g No data No data
NCI C02664i No data No data No data
aAll information obtained from SANSS 1990 and Hutzinger et al 1974 except dDesignation prior to May 19 1980 where noted eEPA 1980a bChemical names used are those currently indexed by the Chemical fEPA-NIH 1990 Abstracts Service gHSDB 2000 cAroclor is the trade name for chlorinated biphenyls made by Monsanto hChemfinder 2000 Chemical Company iNIOSH 1987a
CAS = Chemical Abstracts Services DOTUNNAIMCO = Department of TransportationUnited NationsNorth AmericaInternational Maritime Dangerous Goods Code EPA = Environmental Protection Agency HSDB = Hazardous Substances Data Bank NCI = National Cancer Institute NIOSH = National Institute for Occupational Safety and Health OHMTADS = Oil and Hazardous MaterialsTechnical Assistance Data System PCB = polychlorinated biphenyl RTECS = Registry of Toxic Effects of Chemical Substances
PCBs
446 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 447
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs
PCB Noa Structure CAS Nob
Biphenyl 92-52-4 Monochlorobiphenyl 27323-18-8
1 2 2051-60-7 2 3 2051-61-8 3 4 2051-62-9
Dichlorobiphenyl 25512-42-9 4 22N 13029-08-8 5 23 16605-91-7 6 23N 25569-80-6 7 24 33284-50-3 8 24N 34883-43-7 9 25 34883-39-1 10 26 33146-45-1 11 33N 2050-67-1 12 34 2974-92-7 13 34N 2974-90-5 14 35 34883-41-5 15 44N 2050-68-2
Trichlorobiphenyl 25323-68-6 16 22N3 38444-78-9 17 22N4 37680-66-3 18 22N5 37680-65-2 19 22N6 38444-73-4 20 233N 38444-84-7 21 234 55702-46-0 22 234N 38444-85-8 23 235 55720-44-0 24 236 55702-45-9 25 23N4 55712-37-3 26 23N5 38444-81-4 27 23 N6 38444-76-7 28 244N 7012-37-5 29 245 15862-07-4 30 246 35693-92-6 31 24N5 16606-02-3 32 24N6 38444-77-8 33 2N34 38444-86-9
PCBs 448
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
34 2N35 37680-68-5 35 33N4 37680-69-6 36 33N5 38444-87-0 37 344N 38444-90-5 38 345 53555-66-1 39 34N5 38444-88-1
Tetrachlorobiphenyl 26914-33-0 40 22N33N 38444-93-8 41 22N34 52663-59-9 42 22N34N 36559-22-5 43 22N35 70362-46-8 44 22N35N 41464-39-5 45 22N36 70362-45-7 46 22N36N 41464-47-5 47 22N44N 2437-79-8 48 22N45 70362-47-9 49 22N45N 41464-40-8 50 22N46 62796-65-0 51 22N46N 68194-04-7 52 22N55N 35693-99-3 53 22N56N 41464-41-9 54 22N66N 15968-05-5 55 233N4 74338-24-2 56 233N4N 41464-43-1 57 233N5 70424-67-8 58 233N5N 41464-49-7 59 233N6 74472-33-6 60 2344N 33025-41-1 61 2345 33284-53-6 62 2346 54230-22-7 63 234N5 74472-35-8 64 234N6 52663-58-8 65 2356 33284-54-7 66 23N44N 32598-10-0 67 23N45 73575-53-8 68 23N45N 73575-52-7 69 23N46 60233-24-1 70 23N4N5 32598-11-1 71 23N4N6 41464-46-4
PCBs 449
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
72 23N55N 41464-42-0 73 23N5N6 74338-23-1 74 244N5 32690-93-0 75 244N6 32598-12-2 76 2N345 70362-48-0 77 33N44N 32598-13-3 78 33N45 70362-49-1 79 33N45N 41464-48-6 80 33N55N 33284-52-5 81 344N5 70362-50-4
Pentachlorobiphenyl 25429-29-2 82 22N33N4 52663-62-4 83 22N33N5 60145-20-2 84 22N33N6 52663-60-2 85 22N344N 65510-45-4 86 22N345 55312-69-1 87 22N345N 38380-02-8 88 22N346 55215-17-3 89 22N346N 73575-57-2 90 22N34N5 68194-07-0 91 22N34N6 68194-05-8 92 22N355N 52663-61-3 93 22N356 73575-56-1 94 22N356N 73575-55-0 95 22N35N6 38379-99-6 96 22N366N 73575-54-9 97 22N3N45 41464-51-1 98 22N3N46 60233-25-2 99 22N44N5 38380-01-7 100 22N4N4N6 39485-83-1 101 22N455N 37680-73-2 102 22N456N 68194-06-9 103 22N45N6 60145-21-3 104 22N466N 56558-16-8 105 233N44N 32598-14-4 106 233N45 70424-69-0 107 233N4N5 70424-68-9 108 233N45N 70362-41-3 109 233N46 74472-35-8
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-1 Chemical Identity of Selected Technical Polychlorinated Biphenyls or Aroclors ab (continued)
Characteristic Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268
Synonym(s) PCB-1254 Polychlorinated biphenyl mixture with 54 chlorine
PCB-1260 Polychlorinated biphenyl mixture with 60 chlorine
PCB-1262 Polychlorinated biphenyl mixture with 615ndash625 chlorine
PCB-1268 Polychlorinated biphenyl mixture with 68 chlorine
Registered trade name(s) Aroclor Aroclor Aroclor Aroclor
Chemical formula See Table 4-4 See Table 4-4 See Table 4-4 See Table 4-4
Chemical structure See Section 41 See Section 41 See Section 41 See Section 41
Identification numbers
CAS registry
NIOSH RTECS
11097-69-1
TQ1360000
11096-82-5
TQ1362000
37324-23-5
TQ1364000h
11100-14-4
No data
EPA hazardous wasted 3502e 3502e No data No data
OHMTADS
DOTUNNAIMO shipping
8500405f
UN2315IMO92g
8500406f
UN2315IMO92g
No data
UN2315h
No data
UN2315h
HSDB 6357g 1822g No data No data
NCI C02664i No data No data No data
aAll information obtained from SANSS 1990 and Hutzinger et al 1974 except dDesignation prior to May 19 1980 where noted eEPA 1980a bChemical names used are those currently indexed by the Chemical fEPA-NIH 1990 Abstracts Service gHSDB 2000 cAroclor is the trade name for chlorinated biphenyls made by Monsanto hChemfinder 2000 Chemical Company iNIOSH 1987a
CAS = Chemical Abstracts Services DOTUNNAIMCO = Department of TransportationUnited NationsNorth AmericaInternational Maritime Dangerous Goods Code EPA = Environmental Protection Agency HSDB = Hazardous Substances Data Bank NCI = National Cancer Institute NIOSH = National Institute for Occupational Safety and Health OHMTADS = Oil and Hazardous MaterialsTechnical Assistance Data System PCB = polychlorinated biphenyl RTECS = Registry of Toxic Effects of Chemical Substances
PCBs
446 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 447
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs
PCB Noa Structure CAS Nob
Biphenyl 92-52-4 Monochlorobiphenyl 27323-18-8
1 2 2051-60-7 2 3 2051-61-8 3 4 2051-62-9
Dichlorobiphenyl 25512-42-9 4 22N 13029-08-8 5 23 16605-91-7 6 23N 25569-80-6 7 24 33284-50-3 8 24N 34883-43-7 9 25 34883-39-1 10 26 33146-45-1 11 33N 2050-67-1 12 34 2974-92-7 13 34N 2974-90-5 14 35 34883-41-5 15 44N 2050-68-2
Trichlorobiphenyl 25323-68-6 16 22N3 38444-78-9 17 22N4 37680-66-3 18 22N5 37680-65-2 19 22N6 38444-73-4 20 233N 38444-84-7 21 234 55702-46-0 22 234N 38444-85-8 23 235 55720-44-0 24 236 55702-45-9 25 23N4 55712-37-3 26 23N5 38444-81-4 27 23 N6 38444-76-7 28 244N 7012-37-5 29 245 15862-07-4 30 246 35693-92-6 31 24N5 16606-02-3 32 24N6 38444-77-8 33 2N34 38444-86-9
PCBs 448
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
34 2N35 37680-68-5 35 33N4 37680-69-6 36 33N5 38444-87-0 37 344N 38444-90-5 38 345 53555-66-1 39 34N5 38444-88-1
Tetrachlorobiphenyl 26914-33-0 40 22N33N 38444-93-8 41 22N34 52663-59-9 42 22N34N 36559-22-5 43 22N35 70362-46-8 44 22N35N 41464-39-5 45 22N36 70362-45-7 46 22N36N 41464-47-5 47 22N44N 2437-79-8 48 22N45 70362-47-9 49 22N45N 41464-40-8 50 22N46 62796-65-0 51 22N46N 68194-04-7 52 22N55N 35693-99-3 53 22N56N 41464-41-9 54 22N66N 15968-05-5 55 233N4 74338-24-2 56 233N4N 41464-43-1 57 233N5 70424-67-8 58 233N5N 41464-49-7 59 233N6 74472-33-6 60 2344N 33025-41-1 61 2345 33284-53-6 62 2346 54230-22-7 63 234N5 74472-35-8 64 234N6 52663-58-8 65 2356 33284-54-7 66 23N44N 32598-10-0 67 23N45 73575-53-8 68 23N45N 73575-52-7 69 23N46 60233-24-1 70 23N4N5 32598-11-1 71 23N4N6 41464-46-4
PCBs 449
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
72 23N55N 41464-42-0 73 23N5N6 74338-23-1 74 244N5 32690-93-0 75 244N6 32598-12-2 76 2N345 70362-48-0 77 33N44N 32598-13-3 78 33N45 70362-49-1 79 33N45N 41464-48-6 80 33N55N 33284-52-5 81 344N5 70362-50-4
Pentachlorobiphenyl 25429-29-2 82 22N33N4 52663-62-4 83 22N33N5 60145-20-2 84 22N33N6 52663-60-2 85 22N344N 65510-45-4 86 22N345 55312-69-1 87 22N345N 38380-02-8 88 22N346 55215-17-3 89 22N346N 73575-57-2 90 22N34N5 68194-07-0 91 22N34N6 68194-05-8 92 22N355N 52663-61-3 93 22N356 73575-56-1 94 22N356N 73575-55-0 95 22N35N6 38379-99-6 96 22N366N 73575-54-9 97 22N3N45 41464-51-1 98 22N3N46 60233-25-2 99 22N44N5 38380-01-7 100 22N4N4N6 39485-83-1 101 22N455N 37680-73-2 102 22N456N 68194-06-9 103 22N45N6 60145-21-3 104 22N466N 56558-16-8 105 233N44N 32598-14-4 106 233N45 70424-69-0 107 233N4N5 70424-68-9 108 233N45N 70362-41-3 109 233N46 74472-35-8
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 447
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs
PCB Noa Structure CAS Nob
Biphenyl 92-52-4 Monochlorobiphenyl 27323-18-8
1 2 2051-60-7 2 3 2051-61-8 3 4 2051-62-9
Dichlorobiphenyl 25512-42-9 4 22N 13029-08-8 5 23 16605-91-7 6 23N 25569-80-6 7 24 33284-50-3 8 24N 34883-43-7 9 25 34883-39-1 10 26 33146-45-1 11 33N 2050-67-1 12 34 2974-92-7 13 34N 2974-90-5 14 35 34883-41-5 15 44N 2050-68-2
Trichlorobiphenyl 25323-68-6 16 22N3 38444-78-9 17 22N4 37680-66-3 18 22N5 37680-65-2 19 22N6 38444-73-4 20 233N 38444-84-7 21 234 55702-46-0 22 234N 38444-85-8 23 235 55720-44-0 24 236 55702-45-9 25 23N4 55712-37-3 26 23N5 38444-81-4 27 23 N6 38444-76-7 28 244N 7012-37-5 29 245 15862-07-4 30 246 35693-92-6 31 24N5 16606-02-3 32 24N6 38444-77-8 33 2N34 38444-86-9
PCBs 448
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
34 2N35 37680-68-5 35 33N4 37680-69-6 36 33N5 38444-87-0 37 344N 38444-90-5 38 345 53555-66-1 39 34N5 38444-88-1
Tetrachlorobiphenyl 26914-33-0 40 22N33N 38444-93-8 41 22N34 52663-59-9 42 22N34N 36559-22-5 43 22N35 70362-46-8 44 22N35N 41464-39-5 45 22N36 70362-45-7 46 22N36N 41464-47-5 47 22N44N 2437-79-8 48 22N45 70362-47-9 49 22N45N 41464-40-8 50 22N46 62796-65-0 51 22N46N 68194-04-7 52 22N55N 35693-99-3 53 22N56N 41464-41-9 54 22N66N 15968-05-5 55 233N4 74338-24-2 56 233N4N 41464-43-1 57 233N5 70424-67-8 58 233N5N 41464-49-7 59 233N6 74472-33-6 60 2344N 33025-41-1 61 2345 33284-53-6 62 2346 54230-22-7 63 234N5 74472-35-8 64 234N6 52663-58-8 65 2356 33284-54-7 66 23N44N 32598-10-0 67 23N45 73575-53-8 68 23N45N 73575-52-7 69 23N46 60233-24-1 70 23N4N5 32598-11-1 71 23N4N6 41464-46-4
PCBs 449
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
72 23N55N 41464-42-0 73 23N5N6 74338-23-1 74 244N5 32690-93-0 75 244N6 32598-12-2 76 2N345 70362-48-0 77 33N44N 32598-13-3 78 33N45 70362-49-1 79 33N45N 41464-48-6 80 33N55N 33284-52-5 81 344N5 70362-50-4
Pentachlorobiphenyl 25429-29-2 82 22N33N4 52663-62-4 83 22N33N5 60145-20-2 84 22N33N6 52663-60-2 85 22N344N 65510-45-4 86 22N345 55312-69-1 87 22N345N 38380-02-8 88 22N346 55215-17-3 89 22N346N 73575-57-2 90 22N34N5 68194-07-0 91 22N34N6 68194-05-8 92 22N355N 52663-61-3 93 22N356 73575-56-1 94 22N356N 73575-55-0 95 22N35N6 38379-99-6 96 22N366N 73575-54-9 97 22N3N45 41464-51-1 98 22N3N46 60233-25-2 99 22N44N5 38380-01-7 100 22N4N4N6 39485-83-1 101 22N455N 37680-73-2 102 22N456N 68194-06-9 103 22N45N6 60145-21-3 104 22N466N 56558-16-8 105 233N44N 32598-14-4 106 233N45 70424-69-0 107 233N4N5 70424-68-9 108 233N45N 70362-41-3 109 233N46 74472-35-8
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 448
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
34 2N35 37680-68-5 35 33N4 37680-69-6 36 33N5 38444-87-0 37 344N 38444-90-5 38 345 53555-66-1 39 34N5 38444-88-1
Tetrachlorobiphenyl 26914-33-0 40 22N33N 38444-93-8 41 22N34 52663-59-9 42 22N34N 36559-22-5 43 22N35 70362-46-8 44 22N35N 41464-39-5 45 22N36 70362-45-7 46 22N36N 41464-47-5 47 22N44N 2437-79-8 48 22N45 70362-47-9 49 22N45N 41464-40-8 50 22N46 62796-65-0 51 22N46N 68194-04-7 52 22N55N 35693-99-3 53 22N56N 41464-41-9 54 22N66N 15968-05-5 55 233N4 74338-24-2 56 233N4N 41464-43-1 57 233N5 70424-67-8 58 233N5N 41464-49-7 59 233N6 74472-33-6 60 2344N 33025-41-1 61 2345 33284-53-6 62 2346 54230-22-7 63 234N5 74472-35-8 64 234N6 52663-58-8 65 2356 33284-54-7 66 23N44N 32598-10-0 67 23N45 73575-53-8 68 23N45N 73575-52-7 69 23N46 60233-24-1 70 23N4N5 32598-11-1 71 23N4N6 41464-46-4
PCBs 449
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
72 23N55N 41464-42-0 73 23N5N6 74338-23-1 74 244N5 32690-93-0 75 244N6 32598-12-2 76 2N345 70362-48-0 77 33N44N 32598-13-3 78 33N45 70362-49-1 79 33N45N 41464-48-6 80 33N55N 33284-52-5 81 344N5 70362-50-4
Pentachlorobiphenyl 25429-29-2 82 22N33N4 52663-62-4 83 22N33N5 60145-20-2 84 22N33N6 52663-60-2 85 22N344N 65510-45-4 86 22N345 55312-69-1 87 22N345N 38380-02-8 88 22N346 55215-17-3 89 22N346N 73575-57-2 90 22N34N5 68194-07-0 91 22N34N6 68194-05-8 92 22N355N 52663-61-3 93 22N356 73575-56-1 94 22N356N 73575-55-0 95 22N35N6 38379-99-6 96 22N366N 73575-54-9 97 22N3N45 41464-51-1 98 22N3N46 60233-25-2 99 22N44N5 38380-01-7 100 22N4N4N6 39485-83-1 101 22N455N 37680-73-2 102 22N456N 68194-06-9 103 22N45N6 60145-21-3 104 22N466N 56558-16-8 105 233N44N 32598-14-4 106 233N45 70424-69-0 107 233N4N5 70424-68-9 108 233N45N 70362-41-3 109 233N46 74472-35-8
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 449
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
72 23N55N 41464-42-0 73 23N5N6 74338-23-1 74 244N5 32690-93-0 75 244N6 32598-12-2 76 2N345 70362-48-0 77 33N44N 32598-13-3 78 33N45 70362-49-1 79 33N45N 41464-48-6 80 33N55N 33284-52-5 81 344N5 70362-50-4
Pentachlorobiphenyl 25429-29-2 82 22N33N4 52663-62-4 83 22N33N5 60145-20-2 84 22N33N6 52663-60-2 85 22N344N 65510-45-4 86 22N345 55312-69-1 87 22N345N 38380-02-8 88 22N346 55215-17-3 89 22N346N 73575-57-2 90 22N34N5 68194-07-0 91 22N34N6 68194-05-8 92 22N355N 52663-61-3 93 22N356 73575-56-1 94 22N356N 73575-55-0 95 22N35N6 38379-99-6 96 22N366N 73575-54-9 97 22N3N45 41464-51-1 98 22N3N46 60233-25-2 99 22N44N5 38380-01-7 100 22N4N4N6 39485-83-1 101 22N455N 37680-73-2 102 22N456N 68194-06-9 103 22N45N6 60145-21-3 104 22N466N 56558-16-8 105 233N44N 32598-14-4 106 233N45 70424-69-0 107 233N4N5 70424-68-9 108 233N45N 70362-41-3 109 233N46 74472-35-8
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 450
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
110 233N4N6 38380-03-9 111 233N55N 39635-32-0 112 233N56 74472-36-9 113 233N5N6 68194-10-5 114 2344N5 74472-37-0 115 2344N6 74472-38-1 116 23456 18259-05-7 117 234N56 68194-11-6 118 23N44N5 31508-00-6 119 23N44N6 56558-17-9 120 23N455N 68194-12-7 121 23N45N6 56558-18-0 122 2N33N45 76842-07-4 123 2N344N5 65510-44-3 124 2N3455N 70424-70-3 125 2N3456N 74472-39-2 126 33N44N5 57465-28-8 127 33N455N 39635-33-1
Hexachlorobiphenyl 26601-64-9 128 22N33N44N 38380-07-3 129 22N33N45 55215-18-4 130 22N33N45N 52663-66-8 131 22N33N46 61798-70-7 132 22N33N46N 38380-05-1 133 22N33N55N 35694-04-3 134 22N33N56 52704-70-8 135 22N33N56N 52744-13-5 136 22N33N66N 38411-22-2 137 22N344N5 35694-06-5 138 22N344N5N 35065-28-2 139 22N344N6 56030-56-9 140 22N344N6N 59291-64-4 141 22N3455N 52712-04-6 142 22N3456 41411-61-4 143 22N3456N 68194-15-0 144 22N345N6 68194-14-9 145 22N34N66N 74472-40-5 146 22N34N55N 51908-16-8 147 22N34N56 68194-13-8
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 451
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
148 22N34N56N 74472-41-6 149 22N34N5N6 38380-04-0 150 22N34N56N 68194-08-1 151 22N355N6 52663-63-5 152 22N3566N 68194-09-2 153 22N44N55N 35065-27-1 154 22N44N56N 60145-22-4 155 22N44N66N 33979-03-2 156 233N44N5 38380-08-4 157 233N44N5N 69782-90-7 158 233N44N6 74472-42-7 159 233N455N 39635-35-3 160 233N456 41411-62-5 161 233N45N6 74472-43-8 162 233N4N55N 39635-34-2 163 233N4N56 74472-44-9 164 233N4N5N6 74472-45-0 165 233N55N6 74472-46-1 166 2344N56 41411-63-6 167 23N44N55N 52663-72-6 168 23N44N5N6 59291-65-5 169 33N44N55N 32774-16-6
Heptachlorobiphenyl 28655-71-2 170 22N33N44N5 35065-30-6 171 22N33N44N6 52663-71-5 172 22N33N455N 52663-74-8 173 22N33N456 68194-16-1 174 22N33N456N 38411-25-5 175 22N33N45N6 40186-70-7 176 22N33N466N 52663-65-7 177 22N33N4N56 52663-70-4 178 22N33N55N6 52663-67-9 179 22N33N566N 52663-64-6 180 22N344N55N 35065-29-3 181 22N344N56 74472-47-2 182 22N344N56N 60145-23-5 183 22N344N5N6 52663-69-1 184 22N344N66N 74472-48-3 185 22N3455N6 52712-05-7
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 452
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-2 Chemical Identity of Polychlorinated Biphenyl Congeners and Homologs (continued)
PCB Noa Structure CAS Nob
186 22N34566N 74472-49-4 187 22N34N55N6 52663-68-0 188 22N34N566N 74487-85-7 189 233N44N55N 39635-31-9 190 233N44N56 41411-64-7 191 233N44N5N6 74472-50-7 192 233N455N6 74472-51-8 193 233N4N55N6 69782-91-8
Octachlorobiphenyl 31472-83-0 194 22N33N44N55N 35694-08-7 195 22N33N44N56 52663-78-2 196 22N33N44N56N 42740-50-1 197 22N33N44N66N 33091-17-7 198 22N33N455N6 68194-17-2 199 22N33N455N6N 52663-75-9 200 22N33N4566N 52663-73-7 201 22N33N45N66N 40186-71-8 202 22N33N55N66N 2136-99-4 203 22N344N55N6 52663-76-0 204 22N344N566N 74472-52-9 205 233N44N55N6 74472-53-0
Nonachlorobiphenyl 53742-07-7 206 22N33N44N55N6 40186-72-9 207 22N33N44N566N 52663-79-3 208 22N33N455N66N 52663-77-1
209 Decachlorobiphenyl 22N33N44N55N66N
2051-24-3 2051-24-3
aBallschmiter and Zell 1980 also referred to as BZ number bErickson 1986
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa
Property Aroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Molecular weightb 2579c 2007c 2322c 2665c
Color Clear Clear Clear Clear
Physical state Oil Oil Oil Oil
Melting point EC No data 1d No data No data
Boiling point EC 325ndash356 275ndash320 290ndash325 325ndash366
Density gcm3 at 25 EC 137 118 126 138
Odor No data No data No data Mild hydrocarbond
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL
Organic solvent(s)
042 (25 EC)e
Very solubleg
059 (24 EC)f
Very solubleg
045 (25 EC)
Very solubleg
024c 034 (25 EC)e
010 (24 EC)f
Very solubleg
Partition coefficients Log Kow
h
Log Koc
56 No data
47 No data
51 No data
56 No data
Vapor pressure mm Hg at 25 EC 4x10-4 c 67x10-3 c 406x10-3 c 406x10-4 c
Henryrsquos law constant atm-m3mol at 25 ECi 29x10-4 35x10-3 No data 52x10-4
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) 170 141ndash150 152ndash154 176ndash180
Flammability limits EC None to boiling point 176 328 None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0095 ppm 1 mgm3=012 ppm 1 mgm3=0105 ppm 1 mgm3=0092 ppm
Explosive limits No data No data No data No data
PCBs
453 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Molecular weightb 328c 3577c 389 453
Color Light yellow Light yellow No data Cleark
Physical state Viscous liquid Sticky resin No data Viscous liquidk
Melting point No data No data No data No data
Boiling point EC 365ndash390 385ndash420 390ndash425 435ndash450
Density gcm3 at 25 EC 154 162 164 181
Odor Mild hydrocarbond No data No data No data
Odor threshold Water No data No data No data No data Air No data No data No data No data
Solubility Water mgL Organic solvent(s)
0012c 0057 (24 EC) Very solubleg
00027c008 (24 EC)f
Very solubleg 0052 (24 EC)f
No data 0300 (24 EC)f
Soluble
Partition coefficients Log Kow Log Koc
65 No data
68 No data
No data No data
No data No data
Vapor pressure mm Hg at 25 EC 771x10-5 c 405x10-5 c No data No data
Henryrsquos law constant atm-m3mol at 25 ECi 20x10-3 46x10-3 No data No data
Autoignition temperature No data No data No data No data
Flashpoint EC (Cleveland open cup) No data No data 195E C 195E C
PCBs
454 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-3 Physical and Chemical Properties of Some Aroclorsa (continued)
Property Aroclor 1254 Aroclor 1260 Aroclor 1262 Aroclor 1268 Flammability limits EC None to boiling point None to boiling point None to boiling point None to boiling point
Conversion factors Air (25 EC)j 1 mgm3=0075 ppm 1 mgm3=0065 ppm 1 mgm3=0061 ppm 1 mgm3=0052 ppm
Explosive limits No data No data No data No data
aAll information obtained from Monsanto Chemical Company 1985 and Hutzinger et al 1974 unless otherwise notedbAverage weight from Table 3-3 cEPA 1979h data on temperature not availabledNIOSH 1997 eParis et al 1978 fHollifield 1979 gEPA 1985b hThese log Kow values represent an average value for the major components of the individual Aroclor Experimental values for the individual components were obtained from Hansch and Leo 1985 iThese Henrys law constants were estimated by dividing the vapor pressure by the water solubility The first water solubility given in this table was used for the calculation The resulting estimated Henrys law constant is only an average for the entire mixture the individual chlorobiphenyl isomers vary significantly from the average Burkhard et al (1985) estimated the following Henrys law constants (atm-m3mol) for various Aroclors at 25 EC 1221 (228x10-4) 1242 (343x10-4) 1248 (44x10-4) 1254 (283x10-4) and 1260 (415x10-4)jThese air conversion factors were calculated by using the average molecular weight and ideal gas lawkChemical Health and Safety Data National Toxicology Program (httpntp-serverniehsnihgov)
PCBs
455 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 456
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-4 Approximate Weight Percent of PCB Homologs in Some Aroclors
Aroclor Aroclor Aroclor Aroclor Aroclor Homolog 1016a 1221b 1232c 1242d 1248e
C12H9Cl 070 6006 2755 075 007
C12H8Cl2 1753 3338 2683 1504 155
C12H7Cl3 5467 422 2564 4491 2127
C12H6Cl4 2207 115 1058 2016 3277
C12H5Cl5 507 123 939 1885 4292
C12H4Cl6 Not detected Not detected 021 031 164
C12H3Cl7 Not detected Not detected 003 Not detected 002
C12H2Cl8 Not detected Not detected Not detected Not detected Not detected
C12H1Cl9 Not detected Not detected Not detected Not detected Not detected
Average molecular mass 262 206 240 272 300
Aroclor Aroclor Aroclor Aroclor Aroclor Empirical Formula 1254f 1254g 1260d 1262h 1268
C12H9Cl 002 Not detected 002 002 No data
C12H8Cl2 009 024 008 027 No data
C12H7Cl3 039 126 021 098 No data C12H6Cl4 486 1025 035 049 No data
C12H5Cl5 7144 5912 874 335 No data
C12H4Cl6 2197 2676 4335 2643 No data
C12H3Cl7 136 266 3854 4848 No data
C12H2Cl8 Not detected 004 827 1969 No data
C12H1Cl9 004 004 070 165 No data
Average molecular mass 334 334 378 395 453
Source Frame et al (1996)
aLot A2 Aroclor 1016 fLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from bLot A1 Aroclor 1221 abnormal late production (1974ndash1977) cLot A15 Aroclor 1232 gLot G4 Aroclor 1254 (GE118-peak analytical dMean of three Lots standard)eLot A35 Aroclor 1248 hLot A6 Aroclor 1262
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 457
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
1 2 052 054 005 002 002 mdash 002 2 3 002 003 mdash mdash mdash mdash mdash 3 4 015 018 001 mdash mdash mdash mdash 4 22N 362 308 032 004 002 006 002 5 23 017 014 000 mdash mdash mdash mdash 6 23N 164 143 013 000 001 002 001 7 24 029 026 002 mdash mdash mdash mdash 8 24N 829 705 081 026 005 013 004 9 25 058 050 004 mdash mdash mdash mdash 10 26 023 020 mdash mdash mdash mdash mdash 11 33N mdash mdash mdash mdash mdash mdash mdash 12 34 007 006 mdash mdash mdash mdash mdash 13 34N 024 022 002 mdash mdash mdash mdash 14 35 mdash mdash mdash mdash mdash mdash mdash 15 44N 240 210 022 006 001 003 001 16 22N3 388 314 104 071 002 009 001 17 22N4 398 313 105 093 002 008 002 18 22N5 1086 853 429 329 008 025 005 19 22N6 099 080 022 014 mdash mdash mdash 20 233N 088 072 014 008 mdash mdash mdash 21 234 NM NM mdash mdash mdash mdash mdash 22 234N 350 284 133 138 002 004 001 23 235 001 001 mdash 000 mdash mdash mdash 24 236 016 013 001 mdash mdash mdash mdash 25 23N4 072 059 011 004 mdash mdash mdash 26 23N5 157 128 040 023 mdash 003 mdash 27 236 051 041 012 007 mdash mdash mdash 28 244N 850 686 359 557 006 019 003 29 245 010 008 000 001 mdash mdash mdash 30 246 000 mdash mdash mdash mdash mdash mdash 31 24N5 932 734 507 547 011 028 004 32 24N6 237 190 088 093 001 005 001 33 2N34 621 501 223 221 005 016 003
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 458
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
34 2N35 003 002 000 000 mdash mdash mdash 35 33N4 005 008 000 mdash mdash mdash mdash 36 33N5 mdash mdash mdash mdash mdash mdash mdash 37 344N 102 203 079 095 001 007 001 38 345 mdash mdash mdash mdash mdash mdash mdash 39 34N5 mdash mdash mdash mdash mdash mdash mdash 40 22N33N 058 076 113 092 015 012 mdash 41 22N34 076 068 077 075 002 001 mdash 42 22N34N 159 119 167 179 009 015 001 43 22N35 028 018 030 019 mdash mdash mdash 44 22N35N 447 355 631 509 067 231 003 45 22N36 123 089 109 091 002 005 mdash 46 22N36N 049 036 047 039 mdash mdash mdash 47 22N44N 126 093 149 241 007 014 mdash 48 22N45 161 118 166 154 005 012 mdash 49 22N45N 335 253 412 417 026 110 001 50 22N46 001 000 mdash mdash mdash mdash mdash 51 22N46N 032 023 030 031 mdash mdash mdash 52 22N55N 463 353 693 558 083 538 024 53 22N56N 095 071 105 088 004 012 mdash 54 22N66N 001 001 mdash 001 mdash mdash mdash 55 233N4 mdash 010 006 005 mdash mdash mdash 56 233N4N 007 181 316 319 170 055 002 57 233N5 001 002 002 002 mdash mdash mdash 58 233N5N mdash mdash mdash mdash mdash mdash mdash 59 233N6 041 032 037 023 001 002 mdash 60 2344N 004 118 185 267 095 018 004 61 2345 mdash mdash mdash mdash mdash mdash mdash 62 2346 mdash mdash mdash mdash mdash mdash mdash 63 234N5 006 012 017 019 007 002 mdash 64 234N6 187 170 301 332 036 059 001 65 2356 mdash mdash mdash mdash mdash mdash mdash 66 23N44N 039 339 584 722 356 101 002 67 23N45 006 016 013 010 001 mdash mdash
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 459
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
68 23N45N mdash mdash mdash mdash mdash mdash mdash 69 23N46 000 mdash mdash mdash mdash mdash mdash 70 23N4N5 059 373 728 739 683 349 004 71 23N4N6 116 103 167 186 011 015 001 72 23N55N 000 001 002 001 mdash mdash mdash 73 23N5N6 000 000 mdash mdash mdash mdash mdash 74 244N5 033 181 314 467 219 084 005 75 244N6 006 004 008 008 mdash mdash mdash 76 2N345 mdash 008 013 013 003 002 mdash 77 33N44N mdash 031 041 052 020 003 mdash 78 33N45 mdash mdash mdash mdash mdash mdash mdash 79 33N45N mdash mdash mdash mdash mdash mdash mdash 80 33N55N mdash mdash mdash mdash mdash mdash mdash 81 344N5 mdash 001 001 002 000 mdash mdash 82 22N33N4 mdash 026 081 062 153 111 mdash 83 22N33N5 mdash 011 026 020 056 048 001 84 22N33N6 005 041 126 091 158 232 011 85 22N344N mdash 031 098 114 249 128 001 86 22N345 mdash 003 011 009 010 006 mdash 87 22N345N mdash 046 145 111 341 399 041 88 22N346 mdash 000 002 002 mdash mdash mdash 89 22N346N mdash 009 020 017 011 009 mdash 90 22N34N5 mdash mdash NM NM NM NM mdash 91 22N34N6 006 021 063 056 053 093 001 92 22N355N mdash 009 038 025 057 129 030 93 22N356 mdash 000 004 003 mdash mdash mdash 94 22N356N mdash 001 003 002 001 002 mdash 95 22N35N6 031 061 196 143 184 625 245 96 22N366N 004 003 008 006 001 004 mdash 97 22N3N45 mdash 038 122 097 278 262 009 98 22N3N46 mdash mdash mdash mdash mdash mdash mdash 99 22N3N4N5 001 046 147 181 453 302 004 100 22N4N4N6 mdash mdash mdash mdash mdash mdash mdash 101 22N455N 004 069 222 189 549 802 313
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 460
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
102 22N456N 004 007 019 017 009 015 mdash 103 22N45N6 mdash mdash 002 001 mdash 003 mdash 104 22N466N mdash mdash mdash mdash mdash mdash mdash 105 233N44N 000 047 160 145 737 299 022 106 233N45 mdash mdash mdash mdash mdash mdash mdash 107 233N4N5 mdash mdash mdash mdash mdash mdash mdash 108 233N45N mdash mdash mdash mdash mdash mdash mdash 109 233N46 mdash 006 018 013 078 037 001 110 233N4N6 mdash 083 297 255 842 929 133 111 233N55N mdash mdash mdash mdash mdash mdash mdash 112 233N56 mdash mdash mdash mdash mdash mdash mdash 113 233N5N6 mdash mdash mdash mdash 001 mdash mdash 114 2344N5 mdash 004 012 012 050 018 mdash 115 2344N6 mdash 004 011 011 037 020 mdash 116 23456 mdash mdash mdash mdash mdash mdash mdash 117 234N56 mdash 003 009 010 019 023 mdash 118 23N44N5 mdash 066 229 235 1359 735 048 119 23N44N6 mdash mdash 006 006 012 008 mdash 120 23N455N mdash mdash mdash mdash mdash mdash mdash 121 23N45N6 mdash mdash mdash mdash mdash mdash mdash 122 2N33N45 mdash 001 006 005 025 010 mdash 123 2N344N5 mdash 003 007 008 032 015 mdash 124 2N3455N mdash 003 010 007 047 029 001 125 2N3456N mdash 002 004 003 003 002 mdash 126 33N44N5 mdash mdash 000 000 002 000 mdash 127 33N455N mdash mdash mdash mdash mdash mdash mdash 128 22N33N44N mdash 002 012 008 171 142 053 129 22N33N45 mdash mdash 002 039 038 014 130 22N33N45N mdash mdash 004 001 050 060 022 131 22N33N46 mdash mdash mdash mdash 014 019 007 132 22N33N46N mdash 004 015 014 150 229 290 133 22N33N55N mdash mdash mdash mdash mdash 011 007 134 22N33N56 mdash mdash mdash 001 020 037 034 135 22N33N56N mdash mdash 004 004 028 061 108
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 461
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
136 22N33N66N mdash mdash 005 006 024 070 146 137 22N344N5 mdash mdash 003 002 052 042 002 138 22N344N5N mdash 010 038 041 595 580 654 139 22N344N6 mdash mdash mdash mdash 014 015 mdash 140 22N344N6N mdash mdash mdash mdash mdash mdash mdash 141 22N3455N mdash 001 007 009 069 098 262 142 22N3456 mdash mdash mdash mdash mdash mdash mdash 143 22N3456N mdash mdash mdash mdash mdash mdash mdash 144 22N345N6 mdash mdash mdash 001 012 024 061 145 22N34N66N mdash mdash mdash mdash mdash mdash mdash 146 22N34N55N mdash mdash 004 005 045 067 115 147 22N34N56 mdash mdash mdash mdash 002 010 mdash 148 22N34N56N mdash mdash mdash mdash mdash mdash mdash 149 22N34N5N6 mdash 006 024 033 182 365 875 150 22N34N56N mdash mdash mdash mdash mdash mdash mdash 151 22N355N6 mdash mdash 004 008 022 069 304 152 22N3566N mdash mdash mdash mdash mdash mdash mdash 153 22N44N55N mdash 006 023 043 329 377 939 154 22N44N56N mdash mdash mdash mdash 002 004 mdash 155 22N44N66N mdash mdash mdash mdash mdash mdash mdash 156 233N44N5 mdash 001 006 004 113 082 052 157 233N44N5N mdash mdash 001 000 030 019 002 158 233N44N6 mdash 001 004 004 090 081 058 159 233N455N mdash mdash mdash mdash mdash mdash mdash 160 233N456 mdash mdash mdash mdash mdash mdash mdash 161 233N45N6 mdash mdash mdash mdash mdash mdash mdash 162 233N4N55N mdash mdash mdash mdash mdash mdash mdash 163 233N4N56 mdash 001 006 008 070 103 242 164 233N4N5N6 mdash mdash 002 003 031 040 069 165 233N55N6 mdash mdash mdash mdash mdash mdash mdash 166 2344N56 mdash mdash mdash mdash 005 005 mdash 167 23N44N55N mdash mdash 001 001 035 027 019 168 23N44N5N6 mdash mdash mdash mdash mdash mdash mdash 169 33N44N55N mdash mdash mdash mdash mdash mdash mdash
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 462
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
Aroclor
1254g
PCB No Chlorine positions 1016c 1242d 1248e 1248f ldquoLaterdquo 1254h 1260i
170 22N33N44N5 mdash mdash mdash 008 035 052 411 171 22N33N44N6 mdash mdash mdash mdash 008 014 111 172 22N33N455N mdash mdash mdash mdash 003 007 070 173 22N33N456 mdash mdash mdash mdash mdash mdash 010 174 22N33N456N mdash mdash mdash 008 014 034 496 175 22N33N45N6 mdash mdash mdash mdash mdash mdash 017 176 22N33N466N mdash mdash mdash mdash 001 004 059 177 22N33N4N56 mdash mdash mdash 003 008 020 257 178 22N33N55N6 mdash mdash mdash mdash mdash 003 083 179 22N33N566N mdash mdash mdash 002 002 010 203 180 22N344N55N mdash mdash 002 021 042 067 1138 181 22N344N56 mdash mdash mdash mdash mdash mdash 001 182 22N344N56N mdash mdash mdash mdash mdash mdash mdash 183 22N344N5N6 mdash mdash mdash 006 009 018 241 184 22N344N66N mdash mdash mdash mdash mdash mdash mdash 185 22N3455N6 mdash mdash mdash mdash mdash mdash 055 186 22N34566N mdash mdash mdash mdash mdash mdash mdash 187 22N34N55N6 mdash mdash mdash 009 009 025 540 188 22N34N566N mdash mdash mdash mdash mdash mdash mdash 189 233N44N55N mdash mdash mdash mdash 001 001 010 190 233N44N56 mdash mdash mdash mdash 005 007 082 191 233N44N5N6 mdash mdash mdash mdash mdash mdash 017 192 233N455N6 mdash mdash mdash mdash mdash mdash mdash 193 233N4N55N6 mdash mdash mdash mdash mdash 003 053 194 22N33N44N55N mdash mdash mdash mdash mdash 001 207 195 22N33N44N56 mdash mdash mdash mdash mdash mdash 084 196 22N33N44N56N mdash mdash mdash mdash mdash mdash 109 197 22N33N44N66N mdash mdash mdash mdash mdash mdash 007 198 22N33N455N6 mdash mdash mdash mdash mdash mdash 010 199 22N33N455N6N mdash mdash mdash mdash mdash 001 178 200 22N33N4566N mdash mdash mdash mdash mdash mdash 025 201 22N33N45N66N mdash mdash mdash mdash mdash mdash 024 202 22N33N55N66N mdash mdash mdash mdash mdash mdash 033 203 22N344N55N6 mdash mdash mdash mdash mdash 002 140
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs
4 CHEMICAL AND PHYSICAL INFORMATION
Table 4-5 Polychlorinated Biphenyl Congener Compositions (in Weight Percent)a in Aroclorsb (continued)
463
Aroclor
PCB No Chlorine positions 1016c 1242d 1248e 1248f 1254g
ldquoLaterdquo 1254h 1260i
204 22N344N566N mdash mdash mdash mdash mdash mdash mdash 205 233N44N55N6 mdash mdash mdash mdash mdash mdash 010 206 22N33N44N55N6 mdash mdash mdash mdash 003 003 053 207 22N33N44N566N mdash mdash mdash mdash mdash mdash 005 208 22N33N455N66N mdash mdash mdash mdash 001 001 013 209 22N33N44N55N66N mdash mdash mdash mdash mdash mdash NM Sum of weight percents = 1000 1000 1002 1002 1002 1004 1003
aWeight percent values in table are biased high with respect to mole percent values (not calculated)bSource Frame et al (1996) cLot A2 Aroclor 1016 dMean of three Lots of Aroclor 1242 eLot A35 Aroclor 1248 fLot G35 Aroclor 1248 gLot A4 Aroclor 1254 (Monsanto Lot KI-02-6024) from abnormal late production (1974ndash1977)hLot G4 Aroclor 1254 (GE118-peak analytical standard)iMean of three Lots of Aroclor 1260
NM = congener not measured but present at trace level
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
PCBs 464
4 CHEMICAL AND PHYSICAL INFORMATION
increased levels of the high TEF (ie 2378-tetrachlorodibenzo-p-dioxin (ldquodioxinrdquo) Equivalency Factor
ldquoTrdquo often defined as ldquotoxicrdquo) chlorobiphenyls were produced from 1974 to 1977 (see Section 51)
The pyrolysis of technical-grade PCB mixtures produces several PCDFs (Rappe et al 1979 Schecter and
Charles 1991) PCDFs are also produced during the commercial production and handling of PCBs The
amount of PCDFs formed depends upon the manufacturing conditions The concentrations of PCDF
impurities in various commercial Aroclors are shown in Table 4-6 The impurities 2378-tetrachloroshy
dibenzofuran and 23478-pentachlorodibenzofuran were found at concentrations of 033 and 083 ppm
respectively in Aroclor 1248 and at 011 and 012 ppm respectively in Aroclor 1254 (Van den Berg et
al 1985) Concentrations of PCDFs in commercial PCB mixtures including Clophen A-60 Phenoshy
clor DP-6 and Kanechlor 400 have been reported (De Voogt and Brinkman 1989)
Physical properties such as solubility vapor pressure and Henrys law constant have been reported for
individual congeners (Dunnivant and Elzerman 1988 Dunnivant et al 1992 Falconer and Bidleman
1994 Murphy et al 1987 Sabljic and Guumlsten 1989) Physical and chemical properties for several PCB
congeners are presented in Table 4-7 (Bidelman 1984 Dunnivant et al 1992 Erikson 1986 Hansch and
Leo 1979 Hutsinger et al 1974 Mackay et al 1992 Murray and Andren 1991 Yalkowsky et al 1983)
Experimentally determined log Kow values for 19 congeners and an estimation method for the
determination of log Kow values of other PCB congeners are also available (Sabljic et al 1993) The
congeners reported are important due to their toxicity or because they occur in higher concentrations in
the environment
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-6 Concentrations of Chlorinated Dibenzofurans (CDFs) in Commercial Polychlorinated Biphenyl Mixturesa
PCB Tetra-CDF Penta-CDF Hexa-CDF Total (PCDFs)b
Aroclor 1016 (1977) Not detected Not detected Not detected ndash
Aroclor 1016 Not detected Not detected Not detected ndash
Aroclor 1242 007 003 0003 015
Aroclor 1242 007 003 0003 015
Aroclor 1242 23 22 Not detected 45
Aroclor 1254 (1969) 01 02 14 17
Aroclor 1254 (1970) 02 04 09 15
Aroclor 1254 002 02 04ndash06 08
Aroclor 1254 01 36 19 56
Aroclor 1260 (1969) 01 36 19 56
Aroclor 1260 (Lot AK3) 02 03 03 08
Aroclor 1260 03 10 11 38b
Aroclor 1260 08 09 05 22
Clopen A-60 14 50 22 86
Phenoclor DP-6 07 100 29 136
Kanechlor 400 ndash ndash ndash 200
Source Adapted from de Voogt and Brinkman 1989
ain microggbTotal includes quantities of tri-CDF and hepta-CDF isomers that were analyzed
CDF = chlorodibenzofuran PCDFs = polychlorinated dibenzofurans
PCBs
465 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
Table 4-7 Physical and Chemical Properties of Several Congeners of Polychlorinated Biphenyls
Property PCB 77 PCB 138 PCB 153 PCB 169 PCB 180 Molecular weight 29198a 3609b 36088b 36086a 39532b
Molecular formula C12H6CI4 b C12H4Cl6
b C12H4Cl6 b C12H4Cl6
b C12H3Cl7 b
Melting point EC 173c 785ndash80c 103ndash104c 201ndash202c 109ndash110b
Boiling point EC 360 (calc)b 400 (calc)b No data No data 240ndash280 (20 mmHg)b
Density gcm3 at 25 EC 12024 (20 EC)b No data No data No data No data
Odor No data No data No data No data No data
Solubility Water mgL
Organic solvents
0175 ppmc 000055e
ndash
00159ndash00159 (calc)b
ndash
000091 ppmd 000086e
ndash
0000036ndash001230 (calc)b
ndash
000031ndash000656 (calc)b 000023e
ndash
Partition coefficients Log Kow Log Koc
604ndash663b
441ndash575b 650ndash744 (calc)b
521ndash73b 835e 672b
475ndash768b 7408b
660b 670ndash721 (calc)b
578ndash69b
Vapor pressure mm Hg at 25 EC
44x10-7 d 40x10-6 f 380x10-7 f
90x10-7 d 402x10-7 b ndash
Henryrsquos law constant atm-m3mol at 25 EC
043x10-4 g
094x10-4 i
083x10-4 e
107x10-4 h
021x10-4 b 278 (104)g
132 (104)i
131 (104)e
015x10-4 b
059x10-4 b 107x10-4 e
Explosive limits No data No data No data No data No data
aHSDB 2000 bYalkowsky et al 1983 cHutsinger et al 1974dMackay et al 1992 eDunnivant et al 1992 fErikson 1986 gHansch and Leo 1995 hBidelman 1984 iMurray and Andren 1991
PCBs
466 4 C
HEM
ICAL AN
D PH
YSICAL IN
FOR
MATIO
N
