Sodium tetrathionate dihydrate
Sodium tetrathionate dihydrate (CAS 13721-29-4), molecular formula NaO3SS2SO3Na · 2H2O, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
| Molecular weight | 306.27 |
|---|---|
| Linear formula | NaO3SS2SO3Na · 2H2O |
| Assay | ≥98.0% (T) |
| Density | 2.1 g/mL at 25 °C(lit.) |
| Solubility | H2O: soluble50 mg/mL, slightly turbid, colorless |
| Storage temperature | 2-8°C |
| Impurities tested | 10.5-20.0% water (Karl Fischer) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
| Cation traces | Ca: ≤500 mg/kgCd: ≤50 mg/kgCo: ≤50 mg/kgCu: ≤50 mg/kgFe: ≤50 mg/kgK: ≤100 mg/kgNi: ≤50 mg/kgPb: ≤50 mg/kgZn: ≤50 mg/kg |
| Anion traces | thiosulfate (S2O32-): ≤500 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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 Sodium tetrathionate dihydrate?
+
Sodium tetrathionate dihydrate (CAS 13721-29-4), molecular formula NaO3SS2SO3Na · 2H2O, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of Sodium tetrathionate dihydrate does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Sodium tetrathionate dihydrate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Sodium tetrathionate dihydrate?
+
Sodium tetrathionate dihydrate has CAS number 13721-29-4 and molecular formula NaO3SS2SO3Na · 2H2O. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Sodium tetrathionate dihydrate?
+
Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
+
Yes. Every batch of Sodium tetrathionate dihydrate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Sodium tetrathionate dihydrate be stored?
+
Store Sodium tetrathionate dihydrate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Sodium tetrathionate dihydrate used for?
+
Sodium tetrathionate dihydrate is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Sodium tetrathionate dihydrate?
+
Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
▶ Related products
1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis
1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
