Potassium Fluorotitanate, CAS 16919-27-0, (also known as potassium tetrafluorotitanate or potassium fluorotitanate) has the formula K2TiF6. Potassium Fluorotitanate is most used as an additive in aluminum metalurgy to produce alloys containing titanium in the non-ferrous metals industry and to obtain pure titanium by electroysis.