Cat No:BME-0072
Sulfolane is a selective polar solvent that becomes a clear, colorless liquid at approximately 27–28°C. It is miscible with water, mixed xylenes, methyl mercaptan, and ethyl mercaptan; it also dissolves aromatic hydrocarbons, alcohols, and many organic compounds and polymers, while showing limited solubility for paraffins and olefins. Its chemical and thermal stability supports aromatic extraction, polymer spinning and film casting, gas purification and desulfurization, rubber and plastics processing, and textile dyeing applications.
| Chemical Formula | C₄H₈O₂S |
| Molecular Weight | 120.17 g/mol |
| Storage Conditions | Store at room temperature. |
| Purity | ≥98% |
| Primary Application | Aromatic extraction; polymer spinning and film casting; natural, synthesis, and refinery gas purification and desulfurization; rubber and plastics processing; textile dyeing auxiliary |
| Thermal Stability | Good chemical and thermal stability |
| EC Number | 204-783-1 |
| English Synonyms | Sulfolane; tetramethylene sulfone; cyclotetramethylene sulfone; thiolane 1,1-dioxide |
| Grade | Chemical pure (CP) |
| Specification | Chemical pure (CP), ≥98% |
| Molecular Type | Small molecule |
| Density | 1.261 |
| Solubility | Miscible with water, mixed xylenes, methyl mercaptan, and ethyl mercaptan; soluble in aromatic hydrocarbons and alcohols; low solubility in paraffins and olefins |
| Melting Point | 20-26°C |
| Boiling Point | 285°C |
| Freezing Point | 25 °C |
| Refractive Index | 1.484 |
| Flash Point | 330 °F; 166°C |
| PubChem CID | 31347 |
| PubChem SID | 508814697 |
| IUPAC Name | thiolane 1,1-dioxide |
| InChI | 1S/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2 |
| InChI Key | HXJUTPCZVOIRIF-UHFFFAOYSA-N |
| SMILES | C1CCS(=O)(=O)C1 |
| Isomeric SMILES | C1CCS(=O)(=O)C1 |
| Beilstein Number | 107765 |
| Reaxys RN | 107765 |
| UN Number | 3334 |
| Hazard Class | 9 |
| GHS Pictograms | GHS07 |
| Signal Word | Warning |
| Hazard Statements | H302: Harmful if swallowed. H313: May be harmful in contact with skin. H320: Causes eye irritation. |
| Precautionary Statements | P264, P270, P330, P501, P301+P317 |
| WGK Germany | 1 |
| RTECS | XN0700000 |
| Merck Index | 8955 |
| Personal Protective Equipment | dust mask type N95 (US), Eyeshields, Gloves |
| Shipping Conditions | Standard transport |
| Available Package Sizes | 100g, 250g, 500g, 1kg, 5kg |
| XLogP3 | -0.800 |
| Hydrogen Bond Acceptor Count | 2 |
| Exact Mass | 120.025 Da |
| Monoisotopic Mass | 120.025 Da |
| Topological Polar Surface Area | 42.500 Ų |
| Heavy Atom Count | 7 |
| Complexity | 128.000 |
| Covalently Bonded Unit Count | 1 |
| Acute Toxicity | Oral LD50 (rat): 1540 mg/kg |
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