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Sulfolane (CAS 126-33-0) is a sulfur-containing heterocyclic compound containing a highly polar sulfone group and a four-membered ring structure. It occurs as a colorless, odorless, highly hygroscopic crystalline solid or a high-purity liquid with excellent solubility and thermal stability.
It is an important polar aprotic solvent widely used in aromatics extraction, natural gas purification, polymerization reactions, chemical synthesis, and electronic chemical production. In the petrochemical industry, sulfolane is particularly well-suited for aromatic-nonaromatic separation, extraction, and refining processes.
| Property | Specification |
|---|---|
| Product Name | Sulfolane |
| CAS Number | 126-33-0 |
| Molecular Formula | C4H8O2S |
| Molecular Weight | 120.17 g/mol |
| Appearance | Colorless to light yellow liquid or crystals |
| Purity | ≥ 99.0% |
| Melting Point | 27.5 °C |
| Boiling Point | 285 °C |
| Density (20°C) | 1.262 g/cm³ |
| Flash Point | 165 °C |
| Solubility | Miscible with water and most polar solvents |
| Shelf Life | 24 months |
Petrochemicals: Aromatics extraction, natural gas desulfurization, and lubricant refining
Chemical synthesis: A polar aprotic solvent for organic reactions
Polymerization: A solvent for polymer and engineering plastic production
Electronic chemicals: Lithium battery electrolytes and electronic component cleaning
Environmental treatment: Exhaust gas absorption and pollutant extraction
High purity (≥99%) ensures stable reaction performance
High boiling point and thermal stability make it suitable for high-temperature processes
Excellent solubility, compatible with a wide range of organic and inorganic compounds
Low vapor pressure reduces volatility
Factory-direct supply, offering significant price and supply stability advantages
15+ years of experience in fine chemicals and solvents export
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Exporting to over 50 countries, providing long-term service to petrochemical and chemical companies
Providing complete documentation, including COA, MSDS, and TDS
Year-round stock, supporting custom packaging
Packaging: 200kg galvanized iron drum / 1000kg IBC drum
Storage: Store in a cool, dry, well-ventilated area, sealed and away from sources of ignition.
Shelf Life: 24 months
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