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Sodium sulphite

Sodium sulfite: The reliable antioxidant for water treatment, photography and paper production.


What is Sodium Sulfite?

Sodium sulfite (Na2SO3) is a white crystalline powder known primarily for its strong antioxidant properties. As an effective oxygen scavenger, it is widely used in numerous industrial processes to prevent oxidation.

What do you use Sodium Sulfite for?

Sodium sulphite has various applications:

  • Water treatment: To remove oxygen from water, especially in steam systems.
  • Photography: As a gear unit in photographic development processes.
  • Paper production: When bleaching pulp.

Properties of Sodium Sulfite

Sodium sulfite is soluble in water and reacts with acids to produce sulfur dioxide gas. It is important to store the product in a dry place to prevent moisture absorption.

Other common areas of application:

  • In the textile industry to neutralize excess chlorine after bleaching materials.
  • As an oxygen scavenger in oil and gas drilling operations.


  • How should I safely store Sodium Sulfite? It is essential to store Sodium Sulfite in a cool, dry place, in a tightly sealed container.
  • Can Sodium Sulfite Be Used in Food Processing? Only food grade Sodium sulfite can be used for food processing, and it must meet specific regulatory criteria.
  • Where can I find more information about Sodium Sulfite? More information can be found in the safety data sheets offered, or at: Pubchem.

Where Can I Buy Sodium Sulfite?

Looking for Sodium Sulphite for water treatment, photography or paper production? DutchChems supplies top quality sodium sulphite for various industrial needs.


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