CAS Registry Number

CAS 16893-85-9 — Sodium hexafluorosilicate

Sodium hexafluorosilicate is an inorganic fluoride salt (Na₂SiF₆) primarily used in water fluoridation, enamel production, and as a flux in metallurgy. It’s a white, crystalline solid with high solubility in water but limited toxicity risks. This chemical has a CAS number of 16893-85-9, a molecular formula of F₆Na₂Si, and a molecular weight of 188.055 g/mol. It is stable at ambient storage conditions with no signal word for hazard classification. Molekula supplies sodium hexafluorosilicate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.