Sodium sulfite (sodium sulphite) is a sodium salt of sulfurous acid (sulfite). Sodium sulfite is widely used in the paper/ pulp industry. Synonyms: Natrium sulfurosum; Disodium sulfite heptahydrate; Disodium salt. CAS No: 7757-83-7 Molecular Formula: Na2SO3 Molar Mass: 126.04 g/mol.

• Sodium Sulfite Anhydrous use: Used in pulp and paper industry; in water treatment as an oxygen scavenger agent; in the photographic industry to protect developer solutions from oxidation; in textile industry as a bleaching, as a desulfurizing, and as a dechlorinating agent; and in leather trade for the sulfitization of tanning extracts.
• It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate. It is used in other applications include ore flotation, oil recovery, making dyes, and detergent.
• Appearance: White Crystalline Powder
• 50 Lbs Bag
• Specifications - Na2SO3: ≥93%, Fe: ≤0.02%, Water Insoluble Matter: ≤0.05%

Sodium Sulfite Anhydrous use: Used in pulp and paper industry; in water treatment as an oxygen scavenger agent; in the photographic industry to protect developer solutions from oxidation; in textile industry as a bleaching, as a desulfurizing, and as a dechlorinating agent; and in leather trade for the sulfitization of tanning extracts.Wintersun Chemical