Title: Potassium Hexafluorosilicate
CAS Registry Number: 16871-90-2
Additional Names: Potassium fluosilicate; potassium silicofluoride
Molecular Formula: F6K2Si
Molecular Weight: 220.27
Percent Composition: F 51.75%, K 35.50%, Si 12.75%
Line Formula: K2[SiF6]
Properties: White, fine powder or crystals. d 2.27. Slightly sol in cold water. Insol in alcohol. In hot water it hydrolyzes to KF, HF, and silicic acid. pH of 1% aq soln 3.4.
Density: d 2.27
CAUTION: Strong irritant. Ingestion can cause vomiting, diarrhea.
Use: In the manuf of opalescent glass, in porcelain enamels, in insecticides. Also used in aluminum metallurgy. |