Sodium sulfite (\(Na_{2}SO_{3}\)) is a white, crystalline powder or solid, odorless, and highly soluble in water, acting as a strong reducing agent and antioxidant used as a preservative, dechlorinator, and stabilizer in food, photography, water treatment, and textiles.
O3SNa2
2.63 GSM (gm/2)
Soluble
Na2SO3
2832
Sodium sulfite (Na2SO3) is a versatile chemical used as an antioxidant and preservative in food (preventing browning in dried fruits), in water treatment (removing oxygen to prevent boiler corrosion), and extensively in the pulp and paper industry, textiles (bleaching/dechlorinating), photography, and chemical manufacturing for dyes and other compounds like sodium thiosulfate. It's also a byproduct of flue-gas desulfurization, turning pollution into a usable chemical.
85% +
Industrial
Decomposes > 500 C
10.5 to 11.5
ANHYDROUS
Room Temperature
ANHYDROUS
Product Description
Chemical & Physical Properties
Chemical Formula: Na2SO3
Molar Mass: 126.04 g/mol (anhydrous)
Appearance: White crystalline powder or granules
Odor: Odorless
Solubility: Highly soluble in water
Density: 2.633 g/cm (anhydrous)
Key Property: Acts as a reducing agent, scavenger of oxygen, antioxidant, and dechlorinating agent.
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