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Info Sodium Metabisulphite | Cheminformatics
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Sodium Metabisulphite


  • SKU Code: CH000029
  • Supplier: Chemryt
Sanitization and Cleaning agent, Used as corrosion inhibitor/ oxygen scavenger, used in water treatment industry to quench chlorine residual.

Sodium metabisulphite
Application: Sanitization and Cleaning agent, Used as corrosion inhibitor/ oxygen scavenger, used in water treatment industry to quench chlorine residual.
Appearance: White crystals or powder with sulphur dioxide odour.
Solubility: Soluble in water and glycerol. Slightly soluble in alcohol 
Form: Crystalline powder
Odour: Odour of SO2
Specific Gravity (20°C):  1.40 
pH (50%solution):   3.5 - 5.0

Property Name Property Value
Chemical NameSodium Metabisulphite
InChI1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
Molecular Formula

Na2S2O5, Na-O-(S=O)-O-(S=O)-O-Na

Smile String[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
CAS No

7681-57-4

Molecular Formula

Na2S2O5, Na-O-(S=O)-O-(S=O)-O-Na

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