Fluorozirconic Acid, 45%, CAS 12021-95-3, (also known as hexafluorozirconic acid or fluozirconic acid) has the formula H2ZrF6. It is a corrosive chemical, like all salts of fluorosilicic acid. Fluorozirconic acid finds use in zirconium oxide thin films for aluminum annodizing, in surface treatment applications, electroplating, and in chrome-free aluminum lacquering processes. For metal treatment processes, Fluorozirconic acid and Fluorotitanic acid are often used together in the plating system.
