1) iron bucket hermetic packing, inside liner double-layer plastic bag, net weight 50KG, 21mt per 20FCL. 2) soft package: inner line PE/nylon/PE three-layer composite plastic bag, outside bag is composite plastic weaving bag, net weight 25KG. Guidelines
90%
88%
85%
Na2S2O5
≥90%
≥88%
≥85%
Fe
≤20ppm
≤20ppm
≤20ppm
Zinc (Zn) ≤1ppm
≤1ppm
≤1ppm
Other heavy metal
(With Pb to calculate) ≤1ppm
≤1ppm
≤1ppm
Matter which does not dissolve in water
≤0.05%
≤0.05%
≤0.05%
Storage time limit (month) 12
12
12
Uses:
(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.
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Trade Leads Directory -> All Trade Leads -> Chemicals -> Inorganic Chemicals -> Good quality sodium hydrosulfite
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