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GCSE Chemistry > Contact Process

The contact process is the name given to the process by which sulphuric acid is produced. Sulphuric acid has many uses such as the manufacturing of:
  • Paints / Pigments
  • Soaps / Detergents
  • Fibres
  • Plastics
  • Fertilisers
The following reactions are involved:
    S (s)   +   O2 (g)   ---->   SO2 (g)   (sulphur dioxide)

    2SO2 (g)   +   O2 (g)   ---->   2SO3 (g)   (sulphur trioxide)

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