What is Arsenic trichloride?
'''Arsenic trichloride''', also known as '''arsenic(III) chloride''', is a [[chemical compound]]. Its chemical formula is AsCl<sub>3</sub>. It has three [[arsenic]]-[[chlorine]] [[chemical bond|bond]]s in it. The arsenic is in its +3 [[oxidation state]]. ==Properties== Arsenic trichloride is a colorless or yellowish liquid. It [[melt]]s at -16°C and [[Boiling|boils]] at 130.2°C. It reacts with water, similar to [[phosphorus trichloride]], to make [[arsenous acid]] and [[hydrochloric acid]]. It makes fumes in moist air. It is highly toxic. ==Preparation== Arsenic trichloride is made by reacting arsenic with [[chlorine]] or by reacting [[arsenic trioxide]] with hydrochloric acid or [[sulfur monochloride]]. ==Uses== It is used to make other arsenic compounds. It is also used to make [[organic chemistry|organo]]-arsenic compounds. ==Related pages== *[[Arsenic tribromide]] *[[Arsenic trisulfide]] *[[Nitrogen trichloride]] *[[Bismuth trichloride]] [[Category:Arsenic compounds]] [[Category:Chlorine compounds]]