What is Sulfolane CAS No.126-33-0?

Sulfolane CAS No.126-33-0, is a highly stable, polar organic solvent widely used in industrial applications. Also known as tetramethylene sulfone, sulfolane is valued for its excellent solvency, thermal stability, and chemical inertness, making it a preferred choice in various chemical processes.

Chemical Properties of Sulfolane CAS No.126-33-0

  • CAS Number: 126-33-0

  • Molecular Formula: C4H8O2S

  • Appearance: Colorless to pale yellow liquid

  • Solubility: Miscible with water, alcohols, and most organic solvents

  • Boiling Point: Approximately 285°C

  • Density: 1.26 g/cm³

Applications of Sulfolane 

Sulfolane’s unique properties make it indispensable across multiple industries:

  1. Gas Purification
    Sulfolane is widely used in the Sulfinol process for natural gas sweetening, effectively removing acidic gases like CO2 and H2S from gas streams, ensuring cleaner and safer fuel production.

  2. Aromatics Extraction
    In the petrochemical industry, sulfolane is employed to extract aromatic hydrocarbons (e.g., benzene, toluene, and xylene) from refinery streams, improving fuel quality and efficiency.

  3. Chemical Synthesis
    As a versatile solvent, sulfolane is used in the production of pharmaceuticals, agrochemicals, and specialty chemicals, facilitating reactions that require high thermal stability and polarity.

  4. Polymer Processing
    Sulfolane serves as a solvent in the production of polymers and resins, enabling the creation of high-performance materials with enhanced durability and chemical resistance.