Sodium Hydrosulfite 88%,90%
Molecular formula : Na2S2O4
CAS NO.:7775-14-6

Sodium Hydrosulfite88%,90%
Molecular formula : Na2S2O4
CAS NO.:7775-14-6

Sodium Hydrosulfite
Molecular formula : Na2S2O4
Main use :
(1) Used as reducer, dyes auxiliary of dyeing industry, synthetic dyes and intermediates.
(2) Used as bleaching agent of paper pulp in paper-making industry.
(3) Used as bleaching agent of china clay in the ceramics industry.
(4) Used as deoxidizer of rubber and styrene butadiene rubber synthesis, developer in photo-taking industry.
(5) Used as reducing agent, bleaching agent in the industries including pharmacy, food, metallurgy and leather.

90%min
Na2S2O4: ≥90%
Fe: ≤20ppm
Zinc(Zn): ≤1ppm
Other heavy metal
(calculated as Pb): ≤1ppm
Water Insolubles: ≤0.05%
Shelf Life(month): 12

88%min
Na2S2O4: ≥88%
Fe: ≤20ppm
Zinc(Zn): ≤1ppm
Other heavy metal
(calculated as Pb): ≤1ppm
Water Insolubles: ≤0.05%
Shelf Life(month): 12

85%min
Na2S2O4: ≥85%
Fe: ≤20ppm
Zinc(Zn): ≤1ppm
Other heavy metal
(calculated as Pb): ≤1ppm
Water Insolubles: ≤0.05%
Shelf Life(month): 12

FOOD ADDITIVE
Na2S2O4: ≥85%
Fe: ≤20ppm
Zinc(Zn): ≤1ppm
Other heavy metal
(calculated as Pb): ≤1ppm
Water Insolubles: ≤0.05%
Shelf Life(month): 12