Product Details

CasNo： 7772-98-7

MF： Na2S2O3

Appearance： powder

Delivery Time： 15 days

Packing： 25kg/bag

Purity： 98%

Basic Information

Product Description

Product Name：Sodium thiosulfate

CAS No: 7772-98-7

Form: powder

Product Application

Photography & Film Industry:

Essential Fixing Agent: Dissolves unexposed silver halides. An indispensable chemical in film and paper processing, requiring high-purity photographic grade.

Water Treatment & Environmental Protection:

Dechlorination Agent: Widely used to remove residual chlorine​ from tap water, cooling water, and treated wastewater to protect downstream biological systems and sensitive equipment.

Cyanide Waste Treatment: Treats cyanide-bearing wastewater from electroplating and mining, converting it to less toxic thiocyanates.

Textile & Paper Industries:

Anti-chlor / Bleach Neutralizer: Used after bleaching of textiles and pulp to neutralize and remove residual chlorine or peroxide, preventing fiber degradation and yellowing.

Gold Mining & Extraction:

Eco-Friendly Gold Lixiviant: Serves as a cyanide-free alternative​ for gold extraction from ores, particularly effective for carbonaceous and arsenic-bearing refractory ores. A key technology for "greener" mining.

Pharmaceuticals & Chemical Manufacturing:

Antidote: Used in clinical emergency treatment (cyanide poisoning).

Chemical Reagent & Raw Material: Used in the production of other sulfur compounds and as a standard reducing agent in iodometric titrations​ (analytical chemistry).

Other Applications:

Leather tanning, electroplating bath additive, water purifier, and auxiliary in flue gas desulfurization.

Packaging

25kg/bag

Storage

Must be stored in a cool, dry, and well-ventilated warehouse.​ Protect from sunlight and moisture. Incompatible and must be segregated from acids and oxidizing agents.