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99% sodium thiosulfate 7772-98-7 china supplier

Inquiry
  Post Date: Feb 11,2015
  Expiry Date: Feb 11,2016
  Detailed Description: Cas No. :7772-98-7 Quantity: 20,000Kilograms
Specs:Purity: >99% more than
Payment Method: T/T，L/C
Specifications
Our manufactory and company are biggest exporter in China, we can provide the best quality and price.
1.Chemical name: Sodium thiosulfate 
2.Molecular formula: Na2S2O2·5H2O
3. Molecular weight: 248.17
4.Properties: monoclinic crystal, Melting point : 40-45, Relative density :1.729(17). 
5. Quality standard:
 
Item 
 Photo grade
Tech grade
Anhydrous grade
Appearance
colorless transparent crystal 
colorless transparent crystal 
white powder
Assay
≥99.00%
≥98.5%
≥98.0%
Water Insoluble matter 
≤0.01%
≤0.03%
≤0.03%
Sulfide
≤0.001%
≤0.003%
≤0.001%
Fe
≤0.001%
≤0.003%
≤0.001%
PH value
6.5-9.5
6.5-9.5
6.5-9.5
Granularity
12-16
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6. Packing:25kg, 50kg plastic woven bag, or following your demand. 
7.Uses: used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. and decolor agent
 

  CAS Registry Number:

7772-98-7
  Synonyms: ;hypo;hyporice;sodium hyposulfite;sodium subsulfite;sodium thiosulfate anydrous;thiosulfuric acid, disodium salt;thiosulfuric acid (h2s2o3), disodium salt;thiopivalic acid sodium salt;sodi-um hyposulfide;dechlorinating solution;betz 0235;sulfurothioic O,O-acid;hydrogen sulfurothioate;
  Molecular Formula: Na2S2O3
  Molecular Weight: 158.109
  Molecular Structure: 7772-98-7 Sodium thiosulfate
  Safety Description: S24/25:;

  Company: Beijing GuangDaRuiJin Chemical Co., Ltd     [ China ]        
  Contact: Doris
  Tel: 86-1058478363
  Fax: 86-1058478363
  Email: sales01@gdrjchem.com
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