Fluorotitanic Acid 60%, CAS 17439-11-1, (also known as hydrogen fluorotitanate, hexafluorotitanic acid) has the chemical formula H2TiF6. Fluorotitanic acid is used in industrial applications including metal surface treatment and flux as well as electroplating, chrome-free aluminum anodizing, for the manufacture of potassium titanium fluoride, and in the preparation of catalysts. In metal plating, Fluorotitanic acid is often used with Fluorozirconic Acid.