sodium sulfite

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sodium sulfite
Posting date : Dec 08, 2013
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Introduction :Molecular formula : Na2SO3 Molecular weight : 126.04 CAS NO.: 7681-57-4 Standard: HG/T2967-2000 Appearance : white crystalline powder Main content :97%,96%,93% Properties: Usage: 1.for the repparation of a trace analysis of tellurium and determination of niobium and developering, also used as a reducing agent 2.for synthetic fiber fabric bleaching agent, stabilizer, photographic developer, dye bleaching deoxidizer, perfume and dye reduction agent, lignin removal agent 3. Used as ordinary analytical reagent and photosensitive resistance materials 4. Reductive bleaching agent, the food has strong inhibitory effects on plant food bleaching effect and the oxidase. 5.For a variety of cotton fabric scouring of cotton fiber, can prevent local oxidation and influence of fiber strength, and improve the whiteness of boiling Standard Commodity Anhydrous Sodium Sulfite MF Na2SO3 CAS NO. 7757-83-7 Inspection date ITEM AND RESULT ITEMS STANDARD RESULTS Na2So3 % ≥97.00% 97.09% FE% ≤0.003% 0.0025% Insoluble solid in water% ≤0.02% 0.01% Na2Co3% ≤0.1% 0.10% Na2So4% ≤2.5% 2.5% NaCl% ≤0.1% 0.1% Appearance White crystals or crystalline powder QUALIFIED Package: Double-layer plastic woven bag. Net weight per bag: 25Kg or 50Kg.

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