Potassium hexafluorozirconate is an inorganic compound of potassium, fluorine, and zirconium with the chemical formula . It is the potassium salt of hexafluorozirconic acid, forming white monoclinic crystals.
Preparation Potassium hexafluorozirconate can be prepared by precipitation from solution. For example, by mixing potassium fluoride with zirconium tetrafluoride:
Similarly, potassium chloride and ammonium hexafluorozirconate may be used:
Also, in industry, it is obtained by sintering zirconium ore concentrates with potassium fluorosilicate at 600–700 °C.
Uses Potassium hexafluorozirconate is used as an intermediate product in the electrolytic production of metallic zirconium.
It is also used as a flame retardant for wool, grain refining agent in magnesium and aluminum alloys, welding flux, and optical glass component.
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