Product Description
Sulfolane is a highly effective solvent characterized by strong solubility for aromatic hydrocarbons and excellent selectivity. It offers superior thermal stability, along with low vapor pressure and low toxicity. Additionally, it is non-corrosive to carbon steel, making it suitable for industrial use.
Owing to these advantages, sulfolane-based extraction technology has become one of the most widely adopted methods for the extraction of aromatic hydrocarbons worldwide.
Sulfolane Chemical Properties
| Melting point | 20-26 °C (lit.) |
| Boiling point | 104 °C/0.2 mmHg (lit.) 285 °C (lit.) |
| Density | 1.261 g/mL at 25 °C (lit.) |
| Vapor density | 4.2 (vs air) |
| Vapor pressure | 0.01 mm Hg ( 20 °C) |
| Refractive index | n20/D 1.484(lit.) |
| Fp | 330 °F |
| Storage temp | Store below +30°C. |
| Solubility | >=100g/l soluble |
| Form | Liquid After Melting |
| Color | Clear yellow |
| Water Solubility | soluble |
| FreezingPoint | 26℃ |
| Sensitive | Hygroscopic |
| Merck | 148955 |
| BRN | 107765 |
| Dielectric constant | 44 |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| InChIKey | HXJUTPCZVOIRIF-UHFFFAOYSA-N |
| LogP | 0 at 20℃ |
| CAS DataBase Reference | 126-33-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Thiophene, tetrahydro-, 1,1-dioxide(126-33-0) |
| EPA Substance Registry System | Sulfolane (126-33-0) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 22 |
| Safety Statements | 23-25 |
| WGK Germany | 1 |
| RTECS | XN0700000 |
| TSCA | Yes |
| HS Code | 29349990 |
| Hazardous Substances Data | 126-33-0(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 1.54 ml/kg (Smyth) |
Product Application
Sulfolane is a polar solvent with strong dissolving power and excellent selectivity. It is capable of dissolving or being miscible with most organic compounds and polymers. It is widely used as an extraction solvent for aromatic hydrocarbons, a medium for polymer spinning and film casting, and in the purification of natural gas, synthesis gas, and refinery gas. It is also applied in gas purification and desulfurization processes, as well as a solvent in rubber and plastics production.
Additionally, it can be used in the textile printing and dyeing industry as an auxiliary agent to enhance color brightness and uniformity. With its high solubility for aromatic hydrocarbons, good selectivity, strong thermal stability, low vapor pressure, low toxicity, and non-corrosive nature toward carbon steel, sulfolane has become a leading solvent in aromatic hydrocarbon extraction technology worldwide.
