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Sodium hydrosulfite for bleaching

Inquiry
  Post Date: Mar 29,2016
  Expiry Date: Mar 29,2017
  Detailed Description: Cas No. :7775-14-6 Quantity: 3000Metric Tons
Specs:90% Min.
Price:Negotiable USD Metric Tons
Payment Method: T/T
Sodium hydrosulfite
Na2S2O4: 90% Min.
Fe: 20ppm Max.
Zinc: 1ppm Max.
Other heavy metal calculated as Pb: 1ppm Max.
Water Insoluble: 0.05% Max.
Shelf Life: 12 month

Application:
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

Packaging: 50kg/drum or as customers request.

  CAS Registry Number:

7775-14-6

  Synonyms: ;Sodium dithionite hydrate;Sodium hydrosulphite;Sodium dithionite;disodium dithionite;
  Molecular Formula: Na2O4S2
  Molecular Weight: 174.1071
  Molecular Structure: 7775-14-6 Sodium hydrosulfite
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R22:;
R31:;
R7:;
  Safety Description: S26:;
S28A:;
S43E:;
S7/8:;

  Company: Rare Mine Chemical Resources Limited     [ China ]        
  Contact: Jackie
  Tel: +86-18432912390
  Fax:
  Email: sales@minechemical.com
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