Aluminium sulfate - Al2(SO4)3

What is Aluminium sulfate (Al2(SO4)3)?

Al2(SO4)3 is a chemical compound with chemical name Aluminium sulfate. It is also called Filter Alum or Dialuminum trisulfate. It is a white crystalline solid in its anhydrous form and in its solution form it appears as a colorless liquid. Both the forms are non-toxic and noncombustible. Aluminum sulfate is soluble in water but insoluble in ethanol. It is odorless and has a mildly astringent taste, sweet taste. On decomposing, it emits toxic fumes of sulfur oxides. The solution of aluminum sulfate is corrosive to aluminum. This compound is produced in the laboratory by adding aluminum hydroxide, to sulfuric acid.

Properties of Aluminium sulfate – Al2(SO4)3

Al2(SO4)3 Aluminum sulfate
Molecular Weight/ Molar Mass 342.15 g/mol
Density 2.672 g/cm3
Boiling Point 214° F
Melting Point 770 °C

Aluminum sulfate structure (Al2(SO4)3 Structure)

Aluminum sulfate structure

Aluminum sulfate (Al2(SO4)3 ) Uses

  • It is used in baking soda.
  • It is used for gardening to balance the soil PH.
  • Used in the purification of water.
  • It is used in the dyeing of cloth.
  • It is used in making paper.
  • Used for the printing on cloth.
  • It is used in concrete as an accelerator and waterproofing agent.
  • It is used in firefighting foam.
  • It is used in sewage treatment.
  • It is used as the fireproofing agent.

Learn more about the Structure, physical and chemical properties of Aluminium sulfate (Al2(SO4)3 ) from the experts at BYJU’S.

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