Sodium Thiosulfate - Hongding Chemicals Chemical Reagents Tue, 17 Jun 2025 09:02:05 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 246622208 Sodium Thiosulfate https://www.hongdings.com/products/sodium-thiosulfate-hypo/ Tue, 06 Aug 2024 02:44:00 +0000 http://www.hongdings.com/product/boho-bangle-bracelet-2/ Sodium Thiosulfate is a colourless transparent crystal, widely used in mining, food Processing, papermaking, textile Printing/Dyeing, water treatment, pharmaceuticals, textile Manufacturing, photography, tanning Industry

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]]> Product Name: Sodium Thiosulfate
CAS No: 7772-98-7
Einecs No: 231-867-5
HS Code: 2830909000
Formula: Na2S2O3·5H2O
Grade Standard: Tech Grade
Appearance: Colourless transparent crystal
Packaging Details: 25KG/BAG, 50KG/BAG, 1000KG/BAG

Application:
Mining: Flotation agent (depressant)
Food Processing: Chelating agent & antioxidant
Papermaking: Dechlorinating agent for post-bleaching pulp treatment
Textile Printing/Dyeing: Dechlorinator for bleached cotton fabrics
Pharmaceuticals: Detergent/disinfectant applications
Textile Manufacturing: Cotton dechlorinator & wool sulfur dyeing agent
Photography: Photographic fixing agent
Tanning Industry: Dichromate reductant & nitrogenous emission neutralizer

Specification:

Item Range Unit Standard
High-Class First-Class
Purity (Na2S2O3·5H2O) ≥ ω/% 99 98
Water insoluble ≤ ω/% 0.01 0.03
Sulfide (as Na2S) ≤ ω/% 0.001 0.003
Iron (Fe) ≤ ω/% 0.002 0.003
Chloride (as NaCl) ≤ ω/% 0.05 0.2
pH (200g/L solution) – – 6.5-9.5 –

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