Aluminium Sulphate

Aluminum sulfate is a chemical agent most commonly used in water purification, for the pH regulation of garden soil and in waste water treatment. Medically, it is primarily used as a coagulating agent in minor cuts and abrasions as well as deodorant.

Synonyms
Aluminiumssalt, Alunogenite, Cake alumimium, Filter aluminium, Alum, Aluminum Sulphate, Liquid Alum, Sulfate Aluminum Solution, Sulphuric Acid, Aluminum Salt
Chemical Formula
Al2(SO4)3
CAS Number
10043-01-3

Characteristics

Molar Weight
342.15 g/mol (anhydrous); 666.44 g/mol (octadecahydrate)
Melting Point
770 °C
Boiling Point
759.71 °C
Density
2.672 g/cm3 (anhydrous); 1.62 g/cm3 (octadecahydrate)
Forms
Liquid, Yellow

Uses and Applications

Key applications

  • Wastewater treatment
  • Leather processing
  • Metal finishing
  • Pulp and paper
  • Textile handling
  • Solvents
  • Paint and Coatings