Sodium sulfite (sodium sulphite) is a soluble sodium salt of sulfurous acid (sulfite) with the chemical formula Na2SO3. It is a product of sulfur dioxide scrubbing, a part of the flue-gas desulfurization process. It is also used as a preservative to prevent dried fruit from discoloring, and for preserving meats
S 2427 (OTTO) Sodium sulphite, anhydrous, GR 98%+ Cas 7757-83-7 - used in dyeing and printing Industry. S 2427 (OTTO) Sodium sulphite, anhydrous, GR 98%+ Cas 7757-83-7 - used as a reagent in sulfonation and sulfomethylation agent.