It is achromatic transparent smoking liquid. The relative Density is 1.547; melting point -112℃; boiling point 75.5℃. Dissolving in ethyl ether, benzene, carbon disulfide and carbon tetrachloride. Smoking with strong irritant smell in humid air. Decompose harshly and give out hydrochloride gas as meeting water. It is strong poison and corrosiveness.

CAS No.: 7719-12-2

Be mainly used to produce the organic pesticides materials of trichlorfon(dipterex), methamidophos, acephate, EBP(Kitazine) etc. In pharmaceuticals industry, it抯 used in condensation agent of Naphthol(azoic coupling component).