Potassium thiosulphate
Order Potassium thiosulphate (CAS 10294-66-3) online at Zemixal: K2O3S2, COA and SDS with every lot, worldwide shipping.
About Potassium thiosulphate
Researchers and plant chemists source Potassium thiosulphate from Zemixal for routine and specialised work. Identity at a glance (Practical): CAS 10294-66-3, formula K2O3S2 and molar mass 190.33 g/mol. It is described as white to colourless powder to beads.
Use cases we see most often
- Materials research
- Chemical synthesis
Handling and storage
Classified under GHS with signal word Warning and hazard statements H315 and H319. Read the SDS before first use.
Standard pack sizes are 100 g, 500 g and 1 kg, and custom quantities are quoted on request. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.
Specifications and identifiers
| Product name | Potassium thiosulphate |
|---|---|
| Catalogue number | ZX-013140 |
| CAS number | 10294-66-3 |
| IUPAC name | dipotassium;dioxido-oxo-sulfanylidene-lambda6-sulfane |
| Molecular formula | K2O3S2 |
| Molar mass | 190.33 g/mol |
| Exact mass | 189.8563 |
| Grade | Practical |
| Purity / assay | 95% |
| Physical form | Granules |
| Appearance | White to colourless powder to beads |
| H-bond donors / acceptors | 0 / 4 |
| Topological polar surface area | 104 Ų |
| HS code | 28429090 |
| InChIKey | FGRVOLIFQGXPCT-UHFFFAOYSA-L |
| SMILES | [O-]S(=O)(=S)[O-].[K+].[K+] |
| PubChem CID | 61501 |
| Synonyms | Potassium thiosulfate, Thiosulfuric acid (H2S2O3), dipotassium salt, Potassium Hyposulfite, Thiosulfuric Acid, Dipotassium Salt, potassium sulfothioate, Dipotassium sulfurothioate, K2O3S2, Thiosulfuric acid (H2S2O3), potassium salt (1:2) |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P321, P332 + P317, P337 + P317, P362 + P364
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 100 g | Quoted on request | |
| 500 g | Quoted on request | |
| 1 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Potassium thiosulphate
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Other grades with CAS 10294-66-3
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