Sodium Hydrosulphite

Airedale Chemical Sodium Hydrosulphite (also known as Sodium Dithionite) holds the formula Na2S2O4. It is used in the manufacture of a variety of products from photographic film to wine and from fine writing papers to leather goods.

Solid – white crystalline powder with a weak sulphurous odour. Solution – clear, colourless solution with a weak sulphurous odour


Grade: TECH

This product is available in the following sizes

  • 25L Drum
  • 200L Drum
  • Bulk Transfer
  • 25kg Bag Solid/Powder only chemicals


Water Treatment

In industrial applications it can be used as a reducing agent in aqueous solutions.
Used for water treatment, gas purification, cleaning, and stripping.


Used as such in some industrial dyeing processes, where an otherwise water-insoluble dye can be reduced into a water-soluble alkali metal salt.

Life Science

Often used in physiology experiments as a means of lowering solutions' redox potential


In photography it is used as a developer

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