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Sodium Bisulfite (CAS NO : 7631-90-5)

Sodium Bisulfite is a sulfur-based compound used as a reducing agent, antioxidant, and preservative in various industrial, food, and pharmaceutical applications. It effectively prevents oxidation and microbial growth in aqueous systems. Also referred to as (Sodium hydrogen sulfite Sodium bisulphite) by speciality chemical suppliers and manufacturers.

Sodium Bisulfite

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COA

Sodium Bisulfite is a sulfur-based compound used as a reducing agent, antioxidant, and preservative in various industrial, food, and pharmaceutical applications. It effectively prevents oxidation and microbial growth in aqueous systems. Also referred to as (Sodium hydrogen sulfite Sodium bisulphite) by speciality chemical suppliers and manufacturers.

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Chemical Properties & Specifications

Applications of Sodium Bisulfite

Water Treatment

Dechlorination and removal of dissolved oxygen.

Food Industry

Preservative for fruits, vegetables, and wine (regulated levels).

Textile & Leather

Used in dyeing processes and as a bleaching agent.

Pharmaceuticals

Stabilizer and antioxidant in formulations.

Chemical Industry

Reducing agent in chemical synthesis.

Have Questions About Sodium Bisulfite?
We've Got Answers.

Primarily as a reducing agent and dechlorination agent in water treatment.

Yes, but strictly regulated—used as a preservative in specific concentrations.

In dry, airtight containers away from moisture and oxidizing agents.

Yes, it oxidizes to sulfate in presence of air.

Technical grade ≥ 98%; food/pharma grades ≥ 99%.

25 kg woven bags, 50 kg drums, custom bulk packaging.

COA, MSDS, Grade-specific certifications (if required).

Yes, you can purchase Sodium Bisulfite in bulk quantities.

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