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Sodium metabisulfite

Appearance: White or yellow crystalline powder or small crystals
Package: 25kg pp bag or 1000kg jumbo bag
Specification :

Specification  
Main content(Na2S2O5 %)% ≥97
Fe% ≤0.003
Water insoluble matter % ≤0.05
heavy metal % ≤0.0005
ARSENIC % ≤0.0001
PH(5% water soluble) 4.72

Uasge: Used in organic synthesis, printing and dyeing, printing, leather, pharmaceutical and other departments;
Used as preservative in food processing, bleach, bulking agent.


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