Tags: Chemical Compound, Chemical Substance.
Ammonium fluorosilicate (also known as ammonium hexafluorosilicate ammonium fluosilicate or ammonium silicofluoride) has the formula (NH4)2SiF6. It is a toxic chemical like all salts of fluorosilicic acid. It is made of white crystals which have at least three polymorphs and appears in nature as rare minerals cryptohalite or bararite.
