Sulfolane | 126-33-0

Cas No :

126-33-0

Synonyms :

Form :

Liquid

Molecular Weight :

120.16 G/Mol

Molecular Formula :

C4H8O2S

Melting Point :

-31 °C

Boiling Point :

287 °C

Solubility :

Miscible With Water; Soluble In Many Organic Solvents

Flash Point :

136 °C

Description :

Overview of Sulfolane

Sulfolane is a high-performance organosulfur solvent widely used in petrochemical processing, gas treatment, extraction systems, and speciality industrial chemical manufacturing. Chemically, Sulfolane is a cyclic sulfone with the molecular formula C₄H₈O₂S, valued for its exceptional thermal stability, high polarity, and strong solvent power for aromatic hydrocarbons.

From a physical standpoint, Sulfolane appears as a colourless to pale yellow liquid under normal conditions. It has a relatively high sulfolane melting point of approximately 27–30 °C, meaning it may solidify in cooler environments, and a sulfolane boiling point of about 285 °C, making it suitable for high-temperature industrial operations. The sulfolane molecular weight is approximately 120.17 g/mol, and it is identified by the sulfolane CAS no 126-33-0.

Due to its strong solvency and chemical resistance, sulfolane uses are strictly industrial. ChemicalBull supplies high-purity Sulfolane with controlled moisture content, consistent composition, and reliable batch performance. Each shipment is supported with complete documentation, including sulfolane MSDS, COA, and technical data sheets.

As a trusted chemical supplier and reliable distributor, ChemicalBull ensures an uninterrupted supply for critical industrial processes. You may also like N-Methyl-2-Pyrrolidone (NMP), Dimethyl Sulfoxide (DMSO), Toluene, and Xylene for related industrial solvent and extraction applications available on our site.

Applications of Sulfolane

Petrochemical & Refinery Processing

  • Used as a selective solvent for aromatic extraction

  • Applied in BTX (benzene, toluene, xylene) separation

  • Supports refinery and petrochemical operations

Gas Treatment & Purification

  • Used in acid gas removal systems

  • Supports the purification of natural gas and syngas

  • Applied in large-scale gas processing plants

Chemical & Speciality Solvent Applications

  • Used as a high-boiling polar solvent

  • Supports reaction media for speciality synthesis

  • Applied in controlled industrial manufacturing

Electronics & Advanced Industrial Processing

  • Used as a process solvent in speciality applications

  • Supports high-purity processing requirements

  • Applied in controlled industrial environments

Safety & Handling Guidelines

  • Handle using gloves, goggles, and appropriate PPE

  • Avoid prolonged skin contact and inhalation of vapours

  • Use in well-ventilated industrial environments

  • Store in tightly sealed containers away from strong oxidisers

  • Follow sulfolane MSDS and standard industrial safety practices

Where to Buy Sulfolane?

Sulfolane Manufacturer

ChemicalBull supplies industrial-grade Sulfolane suitable for petrochemical extraction, gas treatment, and speciality solvent applications.

Sulfolane Supplier & Distributor

  • Bulk and customised industrial packaging options

  • Export-grade quality with COA, TDS & MSDS

  • Reliable supply across India and international markets

  • Trusted chemical supplier for industrial solvents and speciality chemicals

Sulfolane MSDS

The sulfolane MSDS provides essential information on safe handling, storage conditions, exposure limits, spill management, and emergency procedures. Always review the MSDS before bulk handling or industrial use.

Frequently Asked Questions (FAQs)

  1. What is Sulfolane mainly used for?

    Sulfolane uses include petrochemical extraction, gas purification, and as a high-boiling industrial solvent.

  2. What is the boiling point of Sulfolane?

    The sulfolane boiling point is approximately 285 °C, making it suitable for high-temperature processes.

  3. What is the melting point of Sulfolane?

    The sulfolane melting point is around 27–30 °C, so it may solidify in cooler conditions.

  4. What is the molecular weight of Sulfolane?

    The sulfolane molecular weight is approximately 120.17 g/mol.

  5. What is the CAS number of Sulfolane?

    The sulfolane CAS no is 126-33-0, used for industrial and regulatory identification.