Potassium fluoride is the chemical compound with the formula KF. After hydrogen fluoride, KF is the primary source of the fluoride ion for applications in manufacturing and in chemistry. It is an alkali halide and occurs naturally as the rare mineral carobbiite.

The Ricca Chemical potassium fluoride with a composition of 69.17% water and 30.83% potassium fluoride, is suitable for use as a fluoridating agent, preservative and insecticide. It can be stored at a temperature of 15 to 30 degree C.