Description

Strontium Thiosulphate is an inorganic salt with the CAS registry number 15123-90-7, valued for its role as a specialized chemical intermediate and reagent. Its primary commercial significance lies in its application within analytical chemistry and niche material synthesis processes. This compound is essential for manufacturers and R&D laboratories in the chemical, pharmaceutical, and specialty materials sectors seeking high-purity inorganic reagents.

Application

• Analytical Chemistry Reagent: Used as a specific precipitating or complexing agent in quantitative analysis and titrimetry.
• Chemical Synthesis Intermediate: Serves as a precursor in the preparation of other strontium compounds or specialty inorganic materials.
• Photographic Industry: Historically utilized in certain photographic fixing or toning solutions, though largely replaced by other chemicals.
• Laboratory Research: Employed in academic and industrial research for studying reaction mechanisms involving thiosulphate ions or strontium cations.
• Electroplating & Surface Treatment: Potential use in specialized electroplating baths or surface conversion coatings.
• Pyrotechnics & Signaling Flares: Can be a component in formulations to produce specific colored flames, typically red.

Basic Information

Product Name	Strontium Thiosulphate
CAS No.	15123-90-7
Molecular Formula	SrS2O3
Molecular Weight	199.75 g/mol
Synonyms	Strontium Thiosulfate; Strontium Hyposulfite; Thiosulfuric Acid, Strontium Salt; Strontium Sulfurothioate; Strontium (II) Thiosulphate
EINECS	239-186-7

Quality Control

Our Strontium Thiosulphate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as assay, impurity profiles, and physical characteristics. Our quality system is designed to meet the rigorous demands of industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept away from strong acids and oxidizing agents to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (SrS2O3)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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