Description

Hydrofluoric acid (HF) is an aqueous hydrogen fluoride gas, also known as fluoride acid, bone acid, water washing, bone drill water, rust agent, pickling, under normal temperature and smoke liquid is colorless to pale yellow, with irritating smell, very volatile, in the air, the white smoke. Mainly used as a fluorine compound material, also used in the manufacture of aluminum fluoride and cryolite, semiconductor surface etching and as a catalyst for alkylation. As a strong acidic corrosion agent in the electronics industry, can be used in conjunction with nitric acid, acetic acid, ammonia, hydrogen peroxide.