Description

Potassium Thiosulfate is an inorganic salt with significant utility across various industrial and technical sectors. Its primary value lies in its role as a source of thiosulfate ions, which are effective reducing agents and complexing agents for heavy metals. This makes it a critical component for businesses requiring reliable chemical solutions in water treatment, photography, and analytical chemistry. Industries such as manufacturing, environmental services, and laboratory research rely on consistent, high-quality supplies of this compound to ensure process stability and product integrity.

Application

• As a fixing agent or hypo in photographic development processes.
• In water treatment for dechlorination and as a reducing agent for residual oxidants.
• As a titrant or standard in iodometric and other analytical chemistry methods.
• In the leather industry for deliming and as a reducing agent in chrome tanning.
• For the extraction of silver and other precious metals in mining and metallurgy.
• As a sulfur source or fertilizer component in specialized agricultural formulations.
• In pharmaceutical and chemical synthesis as a sulfur-transfer reagent.

Basic Information

Product Name	Potassium Thiosulfate
CAS No.	10294-66-3
Molecular Formula	K2S2O3
Molecular Weight	190.32 g/mol
Synonyms	Potassium Hyposulfite; Dipotassium Thiosulfate; Thiosulfuric Acid, Dipotassium Salt; KTS; Sulfothiorine; UN 9153
EINECS	233-666-8

Quality Control

Our Potassium Thiosulfate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, assay, and impurity profiles. Certificates of Analysis (COA) documenting these results are available for every shipment, providing full traceability and compliance assurance. We adhere to relevant industry standards and can support requirements for technical, photographic, and reagent-grade materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (K2S2O3)	≥ 98.0 %
pH (5% solution)	6.5 - 8.5
Water Insoluble Matter	≤ 0.05 %
Chloride (as Cl)	≤ 0.05 %
Sulfate (as SO4)	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.