Calcium Hexafluorosilicate
Title: Calcium Hexafluorosilicate
CAS Registry Number: 16925-39-6
Additional Names: Calcium fluosilicate; calcium silicofluoride
Molecular Formula: CaF6Si
Molecular Weight: 182.15
Percent Composition: Ca 22.00%, F 62.58%, Si 15.42%
Line Formula: CaSiF6
Literature References: Prepn from Ca salt and H2SiF6: Moller, Kreth, GB 263780 (1925). Review of toxicology of fluoride compounds: G. L. Waldbott, Acta Med. Scand. Suppl. 400, 1-44 (1963).
Properties: Dihydrate, powder. d 2.25. Almost insol in cold water. Partially dec by hot water. Practically insol in acetone. LD in guinea pigs (mg/kg): 250 orally, 450 s.c. (Waldbott).
Density: d 2.25
Toxicity data: LD in guinea pigs (mg/kg): 250 orally, 450 s.c. (Waldbott)
Use: In wood, rubber, textile industries; flotation agent; insecticide.

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