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Help CenterFactory Direct Wholesale Sodium Hydrosulfite Food Grade
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Sodium hydrosulfite is a versatile chemical that's used in the manufacture of a variety of products we all use every day, from photographic film to wine; from fine writing papers to leather goods; from colored fabrics to metal recovery.
Technical Index
Specification |
TOLERANCE |
Result |
Purity% min |
88.40% |
88% |
Na2CO3% |
1.0-2.5% |
2.50% |
Na2S2O3% |
1.5%max |
0.20% |
Na2S2O5% |
3.5-7% |
6.64% |
Na2SO3% |
0.6%max |
0.22% |
Fe(ppm) |
18max |
14 |
Water Insolubles |
0.1% max |
0.06% |
Other heavy metals(as Pb) |
0.0001%max |
0.0001% |
Applications
(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 for pharmacy, food, metallurgy, leather, etc
15kg,20kg,25kg,50kg,100kg,200kg iron drums with double polyethylene liners;
Protect the product away from direct sunlight , heat , sparks and open flames.Carefully handle the product and avoid damaging the package.
1,Provide free sample for test and evaluation
2,Fast delivery and good customer service
3,Provide guideline and consulting service through your manufaturing process
1,One of the largest professional chemical additives manufactures in China
2,Highest product quality,competitive price and great customer service
3,Over ten year experience of Aluminum Hydroxide related industry
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