Potassium hexafluorotitanate is an inorganic compound of potassium, fluorine, and titanium with the chemical formula .
Hydrofluoric acid reacts with metatitanic acid to generate fluorotitanic acid; then it is neutralized with potassium hydroxide to produce potassium hexafluorotitanate.
The compound forms white powder. Potassium hexafluorotitanate is soluble in hot water, slightly soluble in cold water, and inorganic acid. Insoluble in ammonia.
Reacts with sodium to form titanium, potassium monofluoride and sodium monofluoride:
The compound is used as an analytical reagent, also used in the manufacture of titanic acid and metallic titanium. Can also be used as a catalyst for polypropylene synthesis. It is a component of the metal phosphating surface adjustment.