Sodium Hexafluorosilicate
Title: Sodium Hexafluorosilicate
CAS Registry Number: 16893-85-9
Additional Names: Sodium fluosilicate; sodium silicofluoride
Trademarks: Salufer
Molecular Formula: F6Na2Si
Molecular Weight: 188.06
Percent Composition: F 60.61%, Na 24.45%, Si 14.93%
Line Formula: Na2SiF6
Literature References: Toxicity study: C. W. Muehlberger, J. Pharmacol. Exp. Ther. 39, 246 (1930). Review of toxicology of fluoride compounds: G. L. Waldbott, Acta Med. Scand. Suppl. 400, 1-44 (1963).
Properties: White, granular powder. d 2.68. Melts at red heat with decompn. Sol in 150 parts cold, 40 parts boiling water. Insol in alc. The soln in cold water is neutral. LD in rabbits (mg F/kg): 76 intragastric; in rats (mg F/kg): 42 s.c. (Muehlberger). LD in guinea pigs (mg/kg): 250 orally, 500 s.c. (Waldbott).
Density: d 2.68
Toxicity data: LD in rabbits (mg F/kg): 76 intragastric; in rats (mg F/kg): 42 s.c. (Muehlberger); LD in guinea pigs (mg/kg): 250 orally, 500 s.c. (Waldbott)
Use: In enamels for china and porcelain; manuf opal glass; as insecticide, rodenticide; mothproofing of woolens. Fluoridating agent for drinking water. Intermediate in prodn of synthetic cryolite.
Therap-Cat-Vet: Pediculicide.

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