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Sodium Thiosulphate Pentahydrate

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Company: Choice Chemicals Ltd.

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Sodium Thiosulphate Pentahydrate

Sodium Thiosulphate Pentahydrate

Information

Appearance

Colorless 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 fiber, papermaking, leather and pesticide industries;

Used in the photographic industry is 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 of 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.

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