Barium thiosulfate
Barium thiosulfate (CAS 35112-53-9), with the formula BaS2O3 and a molecular weight of 249.46 g/mol, is an inorganic salt supplied by Tech Serve Solutions. This compound finds utility as a synthetic reagent in chemical synthesis. It is offered with an assay of 98%, suitable for laboratory and industrial applications. TSS ensures reliable supply for research and development purposes.

Chemical Synthesis
Barium thiosulfate serves as a reagent in various chemical synthesis pathways. Its properties make it suitable for introducing the thiosulfate anion in specific organic and inorganic reactions.
Inorganic Salt Applications
As an inorganic salt, barium thiosulfate can be employed in research settings for studies involving barium compounds or thiosulfate chemistry. It is a source of both barium ions and thiosulfate ions.
Synthetic Reagents
This compound is classified as a synthetic reagent, indicating its use in the preparation of other chemical substances. It is valuable for laboratory-scale syntheses and developmental chemistry.
| Molecular weight | 249.46 |
|---|---|
| Linear formula | BaS2O3 |
| Assay | 98% |

Hazard statements
- H302Harmful if swallowed
- H332Harmful if inhaled
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 1564 6.1 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/22 |
| Safety statements (S) | 28 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Barium thiosulfate used for?
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Barium thiosulfate is primarily used as a synthetic reagent in chemical synthesis and in applications involving inorganic salts.
What are the CAS number and formula for Barium thiosulfate?
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The CAS number for Barium thiosulfate is 35112-53-9, and its chemical formula is BaS2O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Barium thiosulfate with an assay of 98%. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should Barium thiosulfate be handled safely?
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Barium thiosulfate is harmful if swallowed and harmful if inhaled. Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation.
Is Barium thiosulfate a controlled substance?
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The provided data does not indicate that Barium thiosulfate is a controlled substance.
How is Barium thiosulfate shipped or exported?
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Barium thiosulfate is classified under UN 1564, Hazard Class 6.1, Packing Group III (Toxic solids, organic, n.o.s., if not specified otherwise, but this entry is typically for toxic solids). Shipping and export comply with all relevant dangerous goods regulations.
How can I request a quote or sample for Barium thiosulfate?
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To request a quote or a sample, please contact Tech Serve Solutions directly through our website or by calling our sales department.
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