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CONTACT US
Company: Choice Chemicals Ltd.
Address: You'a Headquarters Office Building,Chaoyang Front Street, Furong District, Changsha,Hunan Province 410000,China
Mobile: 0086 731 89878447
E-mail: info@choice-chem.com
Sodium thiosulphate pentahydrate
Information
|
Appearance |
Colourless transparent crystal |
|
CAS NO. |
10102-17-7 |
|
EINECS. |
231-867-5 |
|
H.S. CODE |
2832300000 |
|
Molecular formula |
Na2S2O3.5H2O₃ |
|
Molecular Weight |
248.19 |
Quality Standard
|
Component |
National Standard |
Typical |
|
Na2S2O3.5H2O,% |
≥99.0 |
99.93 |
|
Water insoluble,% |
≤0.01 |
0.01 |
|
Sulfide,% |
≤0.001 |
0.001 |
|
Fe,% |
≤0.002 |
0.002 |
|
NaCl,% |
≤0.05 |
0.05 |
|
pH（200g/l） |
6.5-9.5 |
6.59 |
Application
-
Used in the photographic film, textile, chemical fibre, papermaking, leather and pesticide industries
Used in the photographic industry as a photographic fixer
Used in the paper industry as a chlorine removal agent after pulp bleaching.
Used in the printing and dyeing industry as a dechlorination agent for bleaching cotton fabrics.
Used in analytical chemistry as a reagent for chromatography and capacity analysis.
Used in medicine as detergent and disinfectant.
Used in the food industry as a chelating agent, antioxidant, etc.
Packaging & Transportation
Packing: External polypropylene woven bags, paper-plastic composite bags, kraft paper bags, line with polyethylene plastic bags.
Net weight: 25, 50, 1000kg/bag or customized according to the customer requirements.
