Preparation method of calcium fluoride

Preparation method of calcium fluoride CAF2

Dissolve calcium carbonate or calcium hydroxide with hydrofluoric acid, concentrate the resulting solution, or add fluoride ions to the calcium salt aqueous solution to obtain a colloidal precipitate of calcium fluoride, which can be obtained by refining. The laboratory generally prepares calcium fluoride by reacting calcium carbonate with hydrofluoric acid or repeatedly treating fluorite powder with concentrated hydrochloric acid and hydrofluoric acid.