Human Anatomy and Physiology · Found as zinc ore sphalerite (zinc sulfide) Ores, associated with...
Transcript of Human Anatomy and Physiology · Found as zinc ore sphalerite (zinc sulfide) Ores, associated with...
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LECTURE # 5
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METALS (cont’d)
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IRON (Fe = Ferrum)
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
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E. MORAN - 2017 5
Parts per million
Iron 50,000
Copper 70
Lead 16
Tin 2
Silver 0.1
Gold 0.005
Metals in Earth Crust
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Bronze and Iron Ages
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E. MORAN - 2017 7
35% of Earth’s mass as Fe-Ni alloy
5% of Earth’s crust
Fourth most abundant in the Earth’s crust
Found as oxides: hematite (oxide), limonite (hydroxide),
magnesite (carbonate), and siderite (carbonate)
Large deposits of iron sulfate (pyrite)
Easily oxidized rust. Red spots and bands on rocks
Pure iron is soft. Hardened with addition of coal
Important element in human body (Red cells
hemoglobin)
IRON
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E. MORAN - 2017 8
3500 BC – Egypt – iron meteoritic (7.5% nickel)
soft
3000-2700 BC – Mesopotamia – First iron
production
~1500 BC – Melting point was too high for ancient
furnaces: Copper’s melting point = 1,085°C
Tin’s melting point = 232°C
Iron’s melting point = 1,538°C
Heating and hammering was used
1500-1200 – Hittites – Made high temp. kilns
First to smelt iron IRON AGE
Iron Timeline
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E. MORAN - 2017 9
Iron Timeline (cont’d)
India 1200 BC - Greece 1100 BC - Roman Era -
Celtic expansion - Europe - SE Africa 800 BC
Large scale iron production - 1200-1000 BC
1000 BC –Carbon from charcoal was transferred to
iron good steel
513 BC – Chinese made furnace capable of melting
iron
18th Cent. England - Industrial Revolution - Refining
pig iron to wrought iron (less carbon) steel
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E. MORAN - 2017 10
Started in Anatolia ~1200
Changed the civilization and culture because
of the new tools introduced
• Agriculture methods - Metalsmithing
• Lifestyle – many new objects
• Alphabetic characters Written language
• Religious practice – Vedas, Hebrew Bible
• Artistic styles decorations, designs
• Weapons, wars destruction
Iron Age
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Diffusion of Metallurgy from Asia Minor
in the Neolithic Era
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Copper, Bronze, and Iron Ores in Sub-
Sub-Saharan, Central, and South Africa
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Iron furnace
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E. MORAN - 2017 14
Mixture of two or more elements in which the main
component is a metal
Modifying the properties for a desirable effect: Harder,
non-corrosive, luster, color, cost
Alloys of iron: Steel, stainless steel, cast iron, tool steel
Stainless steel: carbon steel + chromium, nickel,
molybdenum
Cast iron: iron + silicon
Tool steel: Iron + tungsten, chromium, vanadium,
molybdenum
High strength-to-weight: Alloys of aluminum +
titanium + magnesium
Alloys of Iron
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Chest and Neck Armor
South Korea 4th century BC
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E. MORAN - 2017 16
Found in a wide variety of oxides (rust)
Relatively soft metal
Smelting process carbon added (2.1% = steel)
Made possible our progress in construction and
modern life. All means of transportation,
appliances, etc.
Core of modern civilization
Iron Uses
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Iron in Humans
E. MORAN - 2017 17
From nutrition, iron passes into blood – attached to transferrin
Iron deposits in bone marrow where red blood cells are formed
Hemoglobin in red blood cells and Myoglobin in muscles
cells oxidation
Hemoglobin = heme + globin (a protein)
Heme has iron in its molecule
In the lungs: Blood red cells (Hemoglobin + oxygen) = oxyHb.
tissues carboxyHb. lungs oxyHb.
Chronic loss of blood Iron deficiency anemia (heavy periods,
lack of iron intake in children)
• Overdoses of Fe by mouth are not recommended iron
• overload + peroxides free radicals DNA damage
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MERCURY (Hg = Hydrargyrum)
(also Known as Quicksilver)
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
E. Moran - 2017
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
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MERCURY
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E. MORAN - 2017 21
Only liquid metal at standard temperature. Heavy.
Found in the mineral cinnabar (mercuric sulfide) -
red pigment - vermillon
Extremely rare. Mines in Italy, USA, Mexico
Does not blend with other metals. May be kept in iron
containers. Concentrated in ores.
Dissolves gold and silver
Extremely toxic – uses declined for environmental
safety. Water through abandoned mines
ecological danger. Minamata disease in Japan.
MERCURY
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Cinnabar
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E. MORAN - 2017 23
Found in Egyptian tombs ~1500 BC
500 BC - Amalgams
Used in Egypt, Greece, Rome as cosmetic
Medieval Age Alchemists : Hg = “First matter”
Widely used by alchemists to obtain gold
1558 – Mercury used in silver extraction by Spain in
Peru
2005 - Mines in China 2/3 of world producer using
prison labor
Mercury – Timeline
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E. MORAN - 2017 24
Dental filings – Amalgam with silver
Mercury-vapor lamps – electricity – Hg. vapor S/W UV
light waves light phosphor in tube fluorescence
High temp. thermometers
Many medical uses have been discontinued:
• Thimerosal (vaccine preservative)
• Mercurochrome (topical antiseptic)
• Diuretics, anti-syphilis meds.
• Thermometers
• Blood pressure cuffs
Mercury - Uses
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Dental Filing = Amalgam of Mercury
and Silver
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Mercury lamps
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NICKEL (Ni)
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
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E. MORAN - 2016 29
Rare metal in Earth’s crust
Usually iron-nickel mixture
Corrosion-resistant
Used in alloys
Necessary in industry, metallurgy
NICKEL
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Nickel Production
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Nickel Ore Reserves
E. MORAN - 2016 31
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CHROMIUM (Cr)
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
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E. MORAN - 2017 34
Known to Chinese 3rd cent BC – Xi’an weapons without
erosion because of chromium oxide coating of the
bronze
Found in mineral crocoite (1761)
Extracted as iron chromate oxide
Resists tarnish
CHROMIUM
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E. MORAN - 2017 35
Stainless steel and plating = 85% of commercial use
Dye and pigment chrome yellow - aerospace
Diet - not sufficient information
Chromium in drinking water: 25/35 cities = higher
than the California proposed limits
Chromium - Uses
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Chromium World Production
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ZINC (Zn = Zinc)
(from German “Zinke” = prong)
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
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E. MORAN - 2017 39
Found as zinc ore sphalerite (zinc sulfide)
Ores, associated with other metals (copper, lead)
Large deposits: Iran, Australia, Canada, USA
Refined zinc production increased 80% in 2009
Reserve lifetime is OK
Corrosive-resistant zinc plating of iron = galvanization
Important for humans “Exceptional biologic and public
importance”
Zinc deficiency known
Zinc toxicity known
ZINC
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E. MORAN - 2017 40
Alloy with copper Brass
• 3000 BC - Aegean islands, Mesopotamia, Caucasus
• 2000 BC - Persia, Mesopotamia, Judea, W. India
Pure zinc:
• 900 CE - Rajasthan, India
• 1300 CE - India
• 1600 CE – Europe
Alloy of copper + zinc (zinc identified only in 1746)
1746 – Isolated and described by Margraf, a German chemist
1800 – Galvani & Volta discovered electrochemical
properties of Zn Plating of iron = “galvanization”
Zinc - Timeline
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E. MORAN - 2017 41
Brass - Superior corrosion-resistant
- More ductile and stronger than copper
Many industrial and home appliances, musical
instruments
Various alloys, semiconductor (ZnO) white pigment
Batteries - Luigi Galvani experiment and Volta’s pile.
- Plates of copper and zinc static electricity
Galvanization - Zinc coating iron to protect from rust
Dietary supplement - Effect in prostate cancer (?)
Topical uses - Calamine lotion
- Sickle cell disease skin ulcers
Zinc Uses
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E. MORAN - 2017 42
Present in many body enzymes - 1940 - carbon anhydrase
contains zinc
Present in most organs; highest in prostate, eye, brain
US IOM – Est. Ave. Requirements (RDA) =
8-11 mg/day. RDA = 11 mg.
Tolerable Upper Intake Level (UL) = 40 mg/day
Dietary intake: Oysters, meat, fish, fowl, eggs, dairy,
wheat (bran), seeds, beans, nuts, fortified cereals
Zinc – Intake
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Foods Containing Zinc
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E. MORAN - 2017 44
Deficiency – Malabsorption, chronic liver and
kidney diseases, sickle cell disease, elderly,
Low intake < RDA = 11 mg/day
USA – Less than EAR: Women - 17%; Men -11%
2.2 Bil. people are deficient. 800,000 children
dead/year
Symptoms: Retarded growth of children, diarrhea,
skin lesions, depression and cognitive and
immune system impairment, anosmia
Zinc Deficiency
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Zinc world production
45
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MAGNESIUM (Mg)
46
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
47
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E. MORAN - 2017 48
Name comes from Magnesia, in Greece
Eighth most abundant element in Earth’s crust
Highly reactive – found in minerals
Very important in industry
Essential for life: human body and plants
Important structural metal (3rd after iron and
aluminum)
Highly flammable, intense white light
MAGNESIUM
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Magnesium – Production and Uses
E. MORAN - 2017 49
1618 – Farmer in Epsom, England, had water rich in Mg. which healed skin lesions
1808 – Isolated in England
China is greatest supplier (80% of world supplier)
Uses: Super-strong lightweight alloys: aircraft –
(engine, airframe), automotive (engine
blocks, magwheels), electronics,
photography, printing, battery,
roofing
Medicine - important electrolyte
Plants - chlorophyll
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Magnesium - Biomedicine
E. MORAN - 2017 50
Essential to cell functions
>300 enzymes require magnesium ions
60% in the skeleton; 39% intracellular
RDA = 300 mg/day; only 32% of US people meet the RDA
Sources: Green leafy vegetables, cereals, nuts, spices
Level maintained by GI absorption/loss, and kidney excretion
Magnesium deficiency: Common life threatening –
intake, GI or kidney dysfunction, intracellular
shift, antacids, alcoholism, diabetes
Symptoms: Neuromuscular and cardiac dysfunction
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Foods rich in magnesium
51
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ALUMINUM (Al)
52
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
53
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E. MORAN - 2017 54
Third most abundant in the Earth’s crust
Chemically reactive mostly in minerals
Chief ore = Bauxite
Found as oxides and silicates
Feldspars are aluminosilicates
Aluminum is corrosion-resistant
Best known “strength-to-weight” alloy
Essential for the aerospace industry, structures,
building, transportation
ALUMINUM
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Bauxite – A major aluminum ore
55
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E. MORAN - 2017 56
• Transportation (aircraft bodies)
• Packaging
• Containers (food, beverages)
• Construction
• Household items
• Electronic appliances
• Electrical transmission lines
• Cooking utensils
• Coins
• Metal instruments (guitar resonators, and electric
• guitar speakers
Aluminum - Uses
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E. MORAN - 2017 57
2005 – Major producers: China (1/5), Russia,
Canada, USA
Recycling: Very active
Melting aluminum saves electrical energy
Aluminum recycling: 42% - 95% in Europe
Aluminum - Economics
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World production of aluminum
58
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E. MORAN - 2017 59
No known function in biology
Excessive use of antacids and antiperspirants
toxic effects – nervous system and bones
No conclusive evidence on role in Alzheimer disease
Exposure to powdered aluminum pulmonary
fibrosis
Aluminum - Biomedical
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Aluminum absorption by human skin
60
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SAPPHIRE
61
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E. MORAN - 2017 62
Gemstone variety of the mineral corundum (an aluminum oxide)
Many colors: blue, yellow, purple, orange, grey, black, clear (white)
Natural or synthetic
Very hard (grade 9/10)
Uses: Jewelry, ornaments, electronics
Producers: Australia, Thailand, Sri Lanka, China,
Madagascar, E. Africa, Montana
SAPPHIRE
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Uncut Rough Sapphire
Spokane Sapphire Mine,
Helena, MT
63
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The Blue “Logan Sapphire”
423-carat (85g)
64
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The Blue Sapphire
65
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Synthetic Sapphire
66
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Synthetic Star Sapphire
67
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LITHIUM (Li)
68
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• 6000 BC - GOLD
• 4000 BC - SILVER
• 4200 BC - COPPER
• 3500 BC - LEAD
• 1750 BC - TIN
• 1500 BC - IRON
• 750 BC - MERCURY
• 1746 - ZINC
• 1751 - NICKEL
• 1753 - BISMUTH
• 1755 - MAGNESIUM
• 1757 - PLATINUM
• 1781 - MOLYBDENUM
• 1789 - URANIUM
• 1791 - TITANIUM
• 1797 - CHROMIUM
• 1803 - PALLADIUM
• 1817 – LITHIUM
• 1817 – CADMIUM
• 1827 – ALUMINUM
• 1830 - VANADIUM
• 1898 - POLONIUM
• 1898 – RADIUM
METALS
Year of Discovery
69
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70
Isolated from mineral Petalite (lithium aluminum silicate) in
1817
Present in ocean water, clays, briny waters
Lightest and least dense metal
Highly reactive and flammable – stored in mineral oil
75% of production used in industry, batteries
Found in grains and vegetables. RDA = 1 mg/day
High content in embryo. Activity related with other biochemical
in the body
Mood-stabilizing drugs - Bipolar disorder in humans. Effect on
bone marrow
LITHIUM
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Lithium floats in Oil
71
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Launch of a Torpedo using Lithium as
Fuel
72
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World Production of Lithium
73
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E. MORAN - 2017 74
Use of metals is higher than its production
Mining activities expanding
1932 - 1999 USA copper used/person 73g 238g
Lower energy for recycled metals 95%
UN Intl. Resource Panel – Environmental Program:
• 60 metals recycling rates <50%
• 34 metals recycling rates <1%
Battery packs for hybrid cars, mobile phones are in
jeopardy
RECYCLING OF METALS
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MINERALS
75
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~8000 BC - Salt
3750 BC - Coal
3000 BC - Antimony
2500 BC - Arsenic
~2000 BC - Sulfur
1669 - Phosphor
1732 - Cobalt
1774 - Manganese
1808 - Calcium
1817 - Selenium
1818 - Iodine
1824 – Silicon
1990 - Coltan
1990 - REE
MINERALS
E. MORAN - 2017 76
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SALT (NaCl) =
Sodium (Na) Chloride (Cl)
77
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E. MORAN - 2017 78
Crystalline mineral of sodium chloride (NaCl)
Vast amounts in sea water (3.5%) and in mines
Saltiness = basic human taste
Essential to human health
Processed from sea water and from salt mines
Taxation and active commerce
Trade and War
SALT
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E. MORAN - 2017 79
~ 8000 BC – First evidence of processing salt from sea –
Romania – boiling spring water
Human habitation around water and salt
The name “salt” from Latin “sal” “salarium” = soldier’s pay
Salt present in meat, less in plants - nomads do not eat salt. Farmers do.
Main trading: Chinese, Hittites, Hebrews, Egyptians, Indians, Greeks, Romans, Byzantines
“Salting the Earth”
Salt for barter
Salt trading routes – Via Salaria = Ostia-Rome
Salt - Timeline
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E. MORAN - 2017 80
2800 BC – Active exchange - Egypt and Phoenicians
Tuareg made caravan routes through Sahara
800 BC – Salzburg on river Salzach – salt deposits
Celtic people traded salt and salted meat to Greece and Rome
War of Venice and Genoa over salt transport
Liverpool became rich exporting salt from mines of Cheshire
Columbus’ voyages financed by salt from S. Spain
Oppressive salt tax in S. France cause for French
Revolution
1930 – Gandhi “Salt Satyagraha” making own salt boycotting
British raj.
Salt – Timeline (cont’d)
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Salt Deposits at the Dead Sea
81
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Red Rock Salt, Pakistan
82
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Salt Mounds, Bolivia
83
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Salt – Brine from Sea Water Being Boiled
Thailand
84
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E. MORAN - 2017 85
~200 Mil. Tonnes produced
Producers: China, USA, India, Germany, Canada
Production:
• Sea water evaporation in ponds
• Mines (rock salt) followed by refining
Huge reserves of salt
Uses: 6%-17% - Human consumption
6% - Food processing
12% - Water conditioning process
6% - Agriculture
Salt - Economics
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E. MORAN - 2017 86
Salt = 40% sodium by weight
1 tsp (6g) = 2,300 mg of sodium
Sodium is a source of electrolyte necessary for the
normal function of almost all organs
Necessary for water regulation in the body
Salt intake in Western countries = 10g/day High
blood pressure, stroke
WHO < 2000mg/day (5 g of salt/day)
Less than 1200 mg/day (3 g of salt/day) is not
recommended
SALT and HEALTH
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CALCIUM (Ca)
from Lat. “calx” = lime
87
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E. MORAN - 2017 88
Earth metal, soft grey. Very reactive - found
only in compounds
Geochemical cycling:
• Calcium-bearing rocks eroded
• Calcium release into surface water
• Oceans
• Calcium reacts with dissolved CO2
• Forms limestone
Essential to living organisms
CALCIUM
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E. MORAN - 2017 89
14,000 - 7,000 BC – Used as lime plaster
2500 BC – First lime kiln – Mesopotamia
1st Cent. Romans prepared lime
975 CE – Plaster of Paris to set broken bone
1808 CE – Calcium isolated by H. Davy
2000 CE – Large scale use as various salts
Calcium Timeline and Uses
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Green Calcite from Mexico
90
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Red Calcite from China
91
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Dolomite (white) + Magnesite (yellow)
from Spain
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Orange Mound Spring, Yellowstone
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Travertine Terraces - Mammoth Hot
Springs, Yellowstone National Park
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Travertine terraces, Pamukkale, Turkey
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Pamukkale, Turkey
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MARBLE
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E. MORAN - 2017 98
Calcium carbonate sedimented in layers (foliation)
Mostly calcite and dolomite (aka. limestone)
Effect of water: holes and carving the stone caves
Uses: Sculpture
Construction
Marble
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Carrara Marble
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Foliation (layering) of Limestone
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Limestone – Bridges and arches
Piatra Craiului, Romania
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The Great Pyramid of Giza. Outer layer
(veneer) of limestone (Egypt – 2650 BC)
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Venus of Milo
The Louvre Museum 400-500 BC (?)
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The Nike of Samothrace
Parian Marble (c. 220–190 BC)
The Louvre Museum
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Marble Door – Hagia Sophia – 537 CE
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Travertine Vessels
Mexico, 600-900 CE
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Italian Renaissance – Statue of David
by Michelangelo, 1504
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Taj Mahal – Agra, India - 1648
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E. MORAN - 2017 109
Necessary for life.
99.9% of calcium is in the bones and teeth.
Necessary as a neurotransmitter, for muscle
contraction, and cardiac function
Deficiency: Rickets, osteoporosis, cardiac
dysfunction, clotting abnormalities
Vitamin D - necessary for calcium absorption
and utilization
Intake: Dairy products, nuts, some vegetables
Calcium - Biomedical
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Calcium carbonate 500 mg. tablets
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END OF LECTURE # 5
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