2 Al(OH)₃ + 3 H₂SO₃ → 6 H₂O + Al₂(SO₃)₃

This is an acid-base reaction (neutralization): Al(OH)₃ is a base, H₂SO₃ is an acid.

Reactants:

• Al(OH)₃ – Aluminium hydroxide , Aluminium(3+) trioxidanide
  • Other names: Aluminic acid , Aluminum hydroxide , Al(OH)3 ... show moreAmphojel , Dialume , Aluminium hydroxide gel, dried , Aluminium hydroxide, dried , Aluminum hydroxide gel, dried , Aluminum hydroxide, dried , Dried aluminium hydroxide , Dried aluminum hydroxide gel , Alumina hydrate , Aluminum oxide trihydrate , Trihydroxyaluminum show less
  • Appearance: White amorphous powder ; Odourless white solid in various forms
• H₂SO₃ – Sulfurous acid
  • Other names: S(O)(OH)2 , Sulphurous acid

Products:

• H₂O – Water, oxidane
  • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show moreDihydrogen monoxide (DHMO) (systematic name) , Hydrogen monoxide , Dihydrogen oxide , Hydric acid , Hydrohydroxic acid , Hydroxic acid , Hydrol , Μ-oxido dihydrogen , Κ1-hydroxyl hydrogen(0) show less
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
• Al₂(SO₃)₃