Magnesium Fluorosilicate, CAS 16949-65-8, (also known as magnesium hexafluorosilicate, magnesium fluosilicate or magnesium silicofluoride) has the formula MgSiF6. It is a toxic chemical, like all salts of fluorosilicic acid. Magnesium fluorosilicate finds use as an additive in metal finishing, stone floor finishing, and a variety of other specialized applications.
