• Sodium Thiosulphate
  • Sodium Thiosulphate
  • Sodium Thiosulphate
  • Sodium Thiosulphate
Sodium Thiosulphate
Name: Sodium Thiosulfate
MF: Na2S2O3.5H2O
CAS NO.: 7772-98-7
Appearance(25℃): Colorless crystal granular
Minimum Order Quantity: 1 MT
share with:

product list

contact us

Fax: +86-371-53362830
Skype: svchemical.china
Email: info@svchemical.com.cn
need help?

OverviewTechnical Data Inquiry

【Performance and Application】
Sodium thiosulfate (Na2S2O3), also spelled sodium thiosulphate, is a colorlesscrystalline compound that is more familiar as the pentahydrate, Na2S2O3· 5H2O, anefflorescent, monoclinic crystalline substance also called sodium hyposulfite or "hypo. "

1. Medical Industry: Scouring agent, disinfector and decolorant 
2. Chemical Industry: Reducing agent
3. Photography industry: Fixative
4. Used as dechlorination agent after bleaching of cotton fabrics and paper pulp.
5. Also used in photographic, electroplating and leather making industry.
6. For purifying soft water and tanning hides

25/50KGS plastic woven bag or as per customers’ required.

Stored in dry ventilated place, and keep away from humidity. Load or unload carefully.
【Technical Data】
Item Photographic grade Industrial grade Anhydrous grade
Appearance Colorless transparent crystal Colorless transparent crystal White powder
Assay, %≥ 99.00 98.5 97.0
Water Insoluble matter, %≤ 0.01 0.03 0.03
Sulfide, %≤ 0.001 0.003 0.001
Iron, %≤ 0.001 0.003 0.005
pH 6.5~9.5 6.5~9.5 6.5~9.5
Water solution reaction In accordance with the test In accordance with the test ----
Granularity(g/g) 12~16 --- ----

Please feel free to send your inquiry in the form below. We will reply you within 4 hours.