Antimony trichloride

Antimony trichloride, also known as antimony(III) chloride, is a chemical compound. Its chemical formula is SbCl3. It has antimony and chloride ions in it. The antimony is in its +3 oxidation state.
Properties.
Antimony trichloride is a white or pale yellow solid. It has a strong odor and absorbs water from the air. It reacts with water to make antimony trioxide and hydrochloric acid or hydrogen chloride. 
Preparation.
It is made by reacting chlorine with antimony, antimony trioxide, or antimony trisulfide.
Uses.
It is used to detect Vitamin A. It is used to get horns off calves. It is also used as a catalyst.