Product name:Aluminium chloride
CAS:7446-70-0
Molecular Formula:AlCl3
Formula Weight:133.34
Specification:500g
Description:
Aluminium chloride (AlCl3) is a compound of aluminium and chlorine. Pure samples are white, but it is often contaminated with iron trichloride, giving it a yellow colour. The solid has a low melting and boiling point, and is ionically bonded with covalent character. It sublimes at 178 °C. Molten AlCl3 conducts electricity poorly,unlike more ionic halides such as sodium chloride. It exists in the solid state as a six-coordinate layer lattice.
Aluminium chloride crystallizes from water as the hexahydrate AlCl3·6H2O, which has been used as a topical antiperspirant.
AlCl3 is probably the most commonly used Lewis acid and also one of the most powerful. It finds widespread application in the chemical industry as the classic catalyst for Friedel-Crafts reactions, both acylations and alkylations. It also finds use in polymerization and isomerization reactions of hydrocarbons.
Aluminium also forms a lower chloride, aluminium(I) chloride (AlCl), but this is very unstable and only known in the vapor phase.