Aluminium sulfide or aluminium sulphide is a grey chemical compound with a chemical formula Al2S3. It readily hydrolyses in the air to form hydrogen sulfide. Aluminium sulfide is a greyish solid that posses a strong sulfide smell. It has six crystalline forms: α, β, γ and δ. It can be prepared through a thermite-like reaction between sulfur and aluminium powders. In this article, learn the aluminium sulfide formula and its chemical structure along with its properties and uses.

Aluminium Sulfide Properties

Chemical Formula : Al₂S₃

Appearance : Gray solid with rotten egg smell

Melting Point : 1100 °C

Boiling Point : 1500 °C

Density : 2.02 g/cm³

Molar Mass : 150.158 g/mol

Solubility in Water : Hydrolyses to release H2S

Aluminium Sulfide Uses

1. Used in the preparation of hydrogen sulfide

2. Used to produce chemicals used in the tanning and papermaking industry

3. Used to produce organic compounds such as ethanethiol