Factory Direct Sodium Metabisulfite Food Grade
Description of Sodium Metabisulfite Food Grade
(1)Molecular formula: Na2S2O5
(2)CAS No.: 7681-57-4
(3) Physical appearance: white or slightly yellowish crystalline powder
(4)Purity: 97%
Application of Sodium Metabisulfite Food Grade
a):Bleaching agent for textile fibres, paper pulps
b):Colors stripper and dechlorination
c):Preparation of Indigo Vat Dye
d):solubilizing and acidyfing agent for leather industries
e):wastewater treatment
Storage of Sodium Metabisulfite Food Grade
kept in a light-proof,well-colsed,dry and cool place.
Specification of Sodium Metabisulfite Food Grade
Content (as Na2S2O5) |
97min |
Fe% |
0.0015max |
Water Insoluble% |
0.01max |
Arsenic (as As)% |
0.0001max |
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