Sodium hexafluorosilicate - Na2SiF6 (CAS: 16893-85-9) Sodium hexafluorosilicate is an ionic and inorganic compound that can be synthesized by using neutralization of solutions of hexafluorosilicic acid with alkali metal bases The compound is mainly used in water fluoridation. Viscosity modifier for solution, suspension or emulsion. Dispersing aid for insoluble solids. Forms a gel in water. Films from aqueous or organic solutions have high tensile and cohesive strength. It is used in some countries as additives for water fluoridation, opal glass raw material, ore refining, or other production of other fluoride chemical, e.g. sodium fluoride, cryolite, or aluminium fluoride For price, specification and more information please contact us.