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Quick Details

  • Classification: Sulphate
  • Type: Sodium Thiosulfate
  • CAS No.: 7772-98-7
  • Other Names: Sodium Pyrosulfite
  • MF: Na2S2O3.5H2O
  • EINECS No.: 231-793-3
  • Place of Origin: Henan, China (Mainland)
  • Grade Standard: Agriculture Grade, Electron Grade, Food Grade, Industrial Grade, Medicine Grade, Reagent Grade
  • Purity: 98% Min
  • Appearance: White Powder or transparent crystal
  • Application: Food
  • Brand Name: Henan eastar
  • Model Number: HNET01
  • Product name: sodium thiosulphate
  • Color: Pure White
  • Grade: Food Garde
  • Usage: food and industry
  • Certificate: ISO9001
  • Melting point: 40-45 ℃
  • Molecular weight: 248
  • Solubility: 99.9% Water Soluble
  • Hs code: 2833210000

Packaging & Delivery

Packaging Details 25kg/ PP bag
Delivery Time Within 7 days

Big PP bag sodium thiosulphate, 99% min

Product Description

Name: Sodium thiosulphate

Molecular formula: Na2S2O3.5H2O

CAS: 7772-98-7

Molecular weight: 248


Monoclinic crystal, Melting point: 40-45℃, Relative Density: 1.729(17℃).


1. used in photographic processing as a photographic fixer

2. electroplate applications in steel, as part of patina recipes for copper alloys

3. used in the tanning of leather

4. in PH testing of bleaching substances

5. in Waste water treatment, neutralizing bleached and chlorinated water.

6. to lower chlorine levels in swimming pools and spas following super chlorination

7. used in bleach

8. used in paper industry

9. used to remove iodine stains, e.g. After the explosion of nitrogen tri-iodide.

10. used in aquaculture


colorless transparent crystal



Water Insoluble matter




Iron (as Fe)




Packaging & Shipping

25KGpp bags, 1MT/1.25MT jumbo bags or 25MT/20'

Our Services

1.Glycerol Monostearate

2.Sodium Acetate

3.Sodirm Diacetate

4.Xanthan Gum, food grade

5.Cream of Tartar/ Tartaric Acid, FCCIV

Company Information

Room90B, Tower C, Fortune Plaza, No.32, Jingsan Road, Zhengzhou, 450008, China
Tel: 0086-371-65356169
FAX: 0086-371-65356161
Information department: Health, Safety and Environmental
Our home website: www.henan-eastar.cn


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China (Mainland) | Trading Company
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