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Mining Chemicals

SODIUM BISULFITE

CAS NO. 7631-90-5
Molecular formula: NaHSO3
Molecular weight: 104.07

How to buy SODIUM BISULFITE?

pce



Characteristic:
clear monoclinic crystal or white crystalline powder. Sulfa dioxide odor; specific density: 1.48; dissociate upon heating. Water soluble. Acidic aqueous solution. Slightly soluble in alcohol. Readily oxidized into sodium sulfate in air. Strongly reductive. Form adduct with formaldehyde. Storage: tightly sealed and avoid light.

Specifications:

Item Standard
Purity (in SO2) 65%min
pH (5% aqueous solution) 4.0-4.5
Water insoluble substance 0.02%max
Fe 0.01%max
Heavy metal(as Pb) 0.02%max

Package: 25/50kg N.W. in knitted bag lined with PVC bag  

Application:In photographic developer, preservative for food, electrobath for electroplating of copper. For bleaching of organic products, chemical synthesis etc. Used as reductant and in pesticide etc.

 
 


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