Product Details
Product Description of Sulfolane (CAS#126-33-0)
Sulfolane is a high-efficiency industrial solvent known for its strong dissolving capacity for aromatic hydrocarbons and excellent selectivity. It features exceptional thermal stability, low vapor pressure and low toxicity. Moreover, it does not corrode carbon steel, which makes it highly suitable for industrial applications.
Thanks to these favorable properties, extraction technologies using sulfolane have become among the most popular methods globally for the extraction of aromatic hydrocarbons.
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) |
| 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 of Sulfolane (CAS#126-33-0)
Sulfolane is a polar solvent endowed with high dissolving capacity and outstanding selectivity. It can dissolve or mix with the majority of organic compounds and polymers. It is extensively employed as an extraction solvent for aromatic hydrocarbons, as a medium for polymer spinning and film formation, and in the purification processes of natural gas, synthesis gas, and refinery gas. It is also utilized in gas purification and desulfurization, and serves as a solvent in the manufacturing of rubber and plastics.
Furthermore, it finds application as an auxiliary agent in the textile printing and dyeing industry, where it improves color vividness and uniformity. Leveraging its excellent solubility for aromatic hydrocarbons, good selectivity, superior thermal stability, low vapor pressure, low toxicity, and non-corrosive properties towards carbon steel, sulfolane has established itself as a premier solvent in the global technology of aromatic hydrocarbon extraction.
