Fluorine Compounds, Inorganic, Potassium

Abstract

The two stable forms of potassium with fluorine of commercial significance are the normal fluoride and potassium bifluoride. Potassium fluoride is used in the manufacture of silver solder fluxes and in fluxes for various metallurgical operations. Polyurethane foams can be formed with KF and it is used as a catalyst for the reaction of adiponitrile carbonate and a polyester polyol. Potassium bifluoride is used in the electrolyte for cells in fluorine manufacture, and fluxes for a wide variety of metal joining applications utilize KHF 2 , usually in combination with potassium pentaborate, boric acid, and other fluorides and chlorides. Physical and chemical properties are discussed.