... Na2SO3 CAS: 7757-83-7 Appearance:Colorless crystal or powder sodium sulfiteProperties:Clarify degrees test colorless, single inclined crystals or powder ... :Industrial mainly used in making sulfite cellulose esters, glucosinolate and sodium, organic chemicals, bleached fabrics etc, also used as reductant, ... If you are interested in our products please contact me. Sodium sulfite anhydrous reagent grade ...