Sodium Sulfite

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Related to Sodium sulphite: sodium sulphate, Sodium bisulfite, Sodium sulphide

sodium sulfite

[′sōd·ē·əm ′səl‚fīt]
(inorganic chemistry)
Na2SO3 White, water-soluble, crystals with a sulfurous, salty taste; decomposes when heated; used as a chemical intermediate and food preservative, in medicine and paper manufacturing, and for dyes and photographic developing.

Sodium Sulfite

 

Na2SO3, a salt; colorless crystals. Density, 2.63 g/cm3. Solubility in water, 20.82 percent at 19.9°C and 21.70 percent at 99°C. At ordinary temperatures Na2SO3.7H2O crystallizes from aqueous solutions.

Sodium sulfite is a strong reducing agent and oxidizes readily in aqueous solutions upon exposure to air. Upon heating in aqueous solutions, Na2SO3 adds sulfur, with the formation of sodium thiosulfate. Sodium sulfate is obtained by the reaction of solutions of Na2CO3 and SO2. It is a component of photographic developers.

References in periodicals archive ?
GENERAL SODIUM SULPHITE DESCRIPTION, COMPOSITION, INFORMATION ON INGREDIENTS, HAZARDS IDENTIFICATION, HANDLING AND STORAGE, TOXICOLOGICAL & ECOLOGICAL INFORMATION, TRANSPORT INFORMATION
SODIUM SULPHITE MANUFACTURERS AND TRADERS OF SODIUM SULPHITE (INCLUDING CONTACT DETAILS)
Limited Tenders are invited for Supply Of Sodium Sulphite For Sbulc
It produces nickel, copper, cobalt, rare and precious metals and also some chemical products such as sulphuric acid, caustic soda, liquid chlorine, hydrochloric acid and sodium sulphite, together with some further processed nonferrous metals products.
Ammonium nitrate 500 gm , Bismuth ammonium citrate 100 gm ,Penicillin, benzyl sodium salt 25 gm,Tributyrene vial 10 ml ,Isopropanol 500 ml ,Xylene (rectified) 500 ml , Sodium sulphite 500 gm ,Methyl red 25 gm ,Sodium thiosulphate 500 gm ,Sodium potassium tartrate
Tenders are invited for Sodium Sulphite Anhydrous Qty.