238 U (4.47 10 9 years) 226 Ra (1600 years) 222 Rn (3.82 days) 218 Po (3.10 mins) 214 Pb (26.8 mins) 214 Bi (19.9 mins) 210 Tl (1.30 mins) 214 Po (164.
238 U (4.47 10 9 years)
Calmag caldensate brochure web
