Aluminium chloride (AlCl3) is the main compound of aluminium and chlorine.
It is white, but samples are often contaminated with iron trichloride, giving it a yellow colour. The solid has a low melting and boiling point.
The compound is often cited as a Lewis acid.
It is an example of an inorganic compound that “cracks” at mild temperature, reversibly changing from a polymer to a monomer.
Minimum Assay: 95.0 – 102.0%
Chemical Formula: AlCl3•6H2O
Molecular Weight: 241.43 (133.34anhy)
Water (Karl Fischer): 42.0 – 48.0%
pH (5%, 20°C): 2.5 – 3.5
Ammonium (NH4): <0.01%
Arsenic (As): <0.0004%
Calcium (Ca): <0.02%
Iron (Fe): <0.0006%
Potassium (K): <0.01%
Magnesium (Mg): < 0.01%
Sodium (Na): < 0.1%
Heavy metals (as Pb): <0.0003%
Sulphate (SO4): <0.005%
Hazard Phrases: Causes skin irritation. Causes serious eye irritation.
Prec Phrases: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Cas No: 7784-13-6
Einecs No: 231-208-1