AlF3(Aluminum fluoride) is a stable inorganic substance insoluble in water, acid and alkali. It is obtained by reacting aluminum trichloride with hydrofluoric acid and ammonia. It is mainly used in aluminum production to reduce the melting point and improve the conductivity of electrolyte. By the way, it can be also used as a flux for ceramic glaze and enamel glaze, or as component for glaze medicine. It is flux for smelting non-ferrous metals as well. Sometimes it used in specific fields such as inhibitor for side fermentation in alcohol production.