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 is composed of 67.69% water, 32.30% potassium fluoride,

The Ricca Chemical potassium fluoride is composed of 70.00% water, 30.00% potassium fluoride,