Sodium Silico Fluorideundefined
Hexafluorosilicic acid is the inorganic compound with the formula H2SiF6. It is a product of the production of hydrogen fluoride and the production of phosphate fertilizers. The majority of the hexafluorosilicic acid is used for the production of aluminium metal. Hexafluorosilicic acid is also commonly used for water fluoridation.