Potassium Titanifluoride, K₂TiF₆

Potassium Titanifluoride, K₂TiF₆, is obtained crystallised in lustrous leaflets when potassium hydrogen fluoride is added to a solution of titanic oxide in concentrated hydrofluoric acid, and it may be recrystallised from hydrofluoric acid. The hydrated salt, K₂TiF₆.H₂O, separates in shining scales when potash is added to an aqueous solution of hydro- fluotitanic acid. It loses its water at 100° C., and melts at a white heat without decomposition.

The solubility of potassium titanifluoride in water is as follows:

Temperature °C	0°	3°	6°	10°	14°	20°
Grams of K2TiF6 in 100 grams H2O	0.55	0.67	0.77	0.91	1.04	1.28