Characteristic

Aluminium chloride (AlCl₃), also known as aluminium trichloride, is the main compound of aluminium and chlorine. It is white, but samples are often contaminated with iron(III) chloride, giving it a yellow color. 

Chemical formula：AlCl₃

Molar mass：133.341 g/mol (anhydrous)

                       241.432 g/mol (hexahydrate)

Appearance：white or pale yellow solid, hygroscopic

Density：2.48 g/cm³ (anhydrous)

                2.398 g/cm³ (hexahydrate)

Melting point：192.6 °C (378.7 °F; 465.8 K)  (anhydrous)

                          100 °C (212 °F; 373 K)  (hexahydrate, dec.)

Boiling point：180 °C (356 °F; 453 K) (sublimes)

Solubility：soluble in hydrogen chloride, ethanol, chloroform, carbon tetrachloride

slightly：soluble in benzene

Vapor pressure：133.3 Pa (99 °C)

                             13.3 kPa (151 °C)

Viscosity：0.35 cP (197 °C)

                  0.26 cP (237 °C)

Crystal structure：Monoclinic, mS16

Application

 It is mainly produced and consumed in the production of aluminium metal, but large amounts are also used in other areas of the chemical industry. 

AlCl3_MSDS.pdf