Colorless rhombic crystal system, a, B, Y three forms. Relative density 3.140. The melting temperature of 73.4 ℃. The boiling point of 283 ℃. Deliquescent, smoke in the air, corrosive. Soluble in anhydrous ethanol, chloroform, carbon disulfide, benzene, acetone and other organic solvents, but also soluble in hydrochloric acid and tartaric acid solution. Dissolve in water and decompose to form antimony oxychloride. It is soluble in anhydrous ethanol at room temperature without decomposition, and can react with ethanol to form basic salt when heated. React with hot concentrated sulfuric acid to produce hydrogen chloride and antimony sulfate; Can be oxidized to antimonic acid by concentrated nitric acid; It can react with chlorides of alkali metals and alkaline earth metals to form complexes. Antimony trichloride can inhibit the corrosion of copper, iron, cobalt and nickel by strong acid, and accelerate the dissolution of zinc, cadmium, tin and chromium. Therefore can be used to remove copper, iron, nickel, cobalt metal above the zinc, cadmium, tin, chromium coating. Protective effect on iron in concentrated hydrochloric acid.
CAS Number : 10025-91-9
Purity method by elemental analysis
Molecular weight : 228.11
Form :solid
Appearance : white crystalline solid
Sensitivity : moisture
Melting point :73.4C
Boiling point :283C
Molecular formula :SbCl3
Linear formula :SbCl3Grade：anhydrous
Assay：99.99%
Used for the manufacture of color lake. Used as mordant and flame retardant for dyeing and dyeing, catalyst for inorganic and organic chlorination reaction. Used for bronzing steel. It is the raw material for making antimony salt. It is also used in medicine as an antiseptic.
Used as analytical reagent, catalyst, also used in organic synthesis.
