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Sodium metabisulfite
Product Name
Sodium metabisulfite
CAS NO.
7681-57-4
EINECS
231-673-0
Molecular formula

Na2S2O5

Molecular weight
190.1065
Risk terms
R22; R31; R41;
Safety terms
S26; S39; S46;
Properties

Properties: White or slightly yellow crystalline powder.  
Relative density: 1.4
Solubility: soluble in water, acidic aqueous solution. Soluble in glycerol, slightly soluble in e

Use
Used as bleach, mordant, reducing agent, rubber coagulant, also used in organic synthesis, pharmaceutical and spices, etc.



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