Description

Barium Thiosulfate Monohydrate is an inorganic salt with the chemical formula BaS2O3·H2O. This compound is valued in industrial processes for its role as a specialized reagent and source of barium ions under specific conditions. It is primarily sought by manufacturers and researchers in sectors such as pyrotechnics, specialty chemical synthesis, and analytical chemistry. Its controlled purity and consistent performance are critical for ensuring reliable results in these demanding applications.

Application

• Pyrotechnics and Fireworks Manufacturing: Used as a chlorine donor and colorant agent in green and white flame compositions.
• Specialty Chemical Synthesis: Serves as a precursor or reagent in the synthesis of other barium compounds and sulfur-containing chemicals.
• Analytical Chemistry: Employed as a laboratory reagent for specific gravimetric analyses and titration methods.
• Photographic Industry (Historical/Niche): Can be used in certain photographic fixing and toning processes.
• Water Treatment Research: Investigated for precipitation processes in the removal of specific contaminants.
• Electroplating & Surface Treatment: Potential use in specialized plating baths for depositing barium or sulfur-containing coatings.

Basic Information

Product Name	Barium Thiosulfate Monohydrate
CAS No.	7787-40-8
Molecular Formula	BaS2O3·H2O
Molecular Weight	267.47 g/mol
Synonyms	Barium Thiosulphate Monohydrate; Barium Hyposulfite Monohydrate; Thiosulfuric Acid, Barium Salt, Monohydrate; Barium Sulfurothioate Monohydrate; Barium (II) Thiosulfate Monohydrate
EINECS	Contact for details

Quality Control

Our Barium Thiosulfate Monohydrate is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and reliability. Quality parameters including assay, heavy metal content, and loss on drying are rigorously verified. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0%
Loss on Drying	≤ 7.0%
Insoluble Matter	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.01%
Sulfate (SO4)	≤ 0.05%

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