Sulfolane/tetrahydrothiophene-1,1-dioxide CAS 126-33-0

Sulfolane, also known as tetrahydrothiophene-1,1-dioxide, is a chemical compound with the CAS number 126-33-0. It has the molecular formula C4H8O2S and a molar mass of 120.17 g/mol. This compound is recognized for its polar aprotic solvent properties and is commonly used in various chemical synthesis processes.
Chemical Properties
Molecular Formula: C4H8O2S
Molar Mass: 120.17 g/mol
Appearance: Sulfolane is typically a colorless liquid with a weak oily odor.
Density: 1.261 g/cm³
Melting Point: Approximately 27.5 °C (81.5 °F)
Boiling Point: About 285 °C (545 °F)
Solubility: It is miscible with water, alcohol, acetone, and dilute mineral acids, making it versatile for various applications.
Applications
Sulfolane is widely used in:
Chemical Synthesis: It serves as a solvent in organic reactions and is particularly useful in the pyrolysis of cellulose, where it helps prevent unwanted side reactions such as polymerization or carbonization.
Extraction Processes: Due to its solvent properties, sulfolane is employed in the extraction of various compounds in the chemical industry.
Safety and Handling
Sulfolane is classified with certain hazards, and appropriate safety measures should be taken when handling it. It is important to refer to the Material Safety Data Sheet (MSDS) for detailed safety information, including handling precautions and potential health effects.
In summary, sulfolane (tetrahydrothiophene-1,1-dioxide) is a significant chemical compound with diverse applications in synthesis and extraction, characterized by its unique physical and chemical properties.