126-33-0 | Sulfolane

Chemical type

• Cyclic sulfone physical solvent

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• Cyclic sulfone solvent

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Key properties

• Moderate selectivity for acid gases
• Regeneration energy of 2.3–2.8 GJ/ton CO₂
• Low corrosivity and volatility
• High thermal stability
• Used in water blends to reduce viscosity

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• High dielectric constant
• Wide electrochemical window (>5.5 V vs Li/Li+)
• High flash point (166 °C)
• Nonflammable
• High viscosity
• Strong coordination ability with Li+
• Low LUMO energy level (prone to reduction on Li surface)

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• Acid gas removal (CO₂/H₂S) from natural gas
• Component in hybrid Sulfinol process with amines

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• Solvent in nonflammable electrolytes for lithium-metal batteries
• Facilitates formation of stable SEI layers in dual-salt systems
• Enhances thermal stability in high-voltage battery applications

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Classification by use

• Physical solvent for aromatic and acid gas extraction
• Solvents in hybrid sweetening units for reduced energy

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• Solvents for advanced battery electrolytes
• Nonflammable solvents in energy storage systems

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A trustworthy factory and manufacturer

Demei Chemical Technology Co., Ltd. is a modern high-tech enterprise integrating R&D, production, and sales. The company's founder, Dr. Arron, born in April 1975, graduated from the School of Mechanical Engineering at Yanshan University and has been engaged in research in the fields of mechanical engineering and chemical synthesis for many years. The company's products focus on the chemical industry, primarily dealing in chemical raw materials and chemical production machinery and equipment. With its strong technical capabilities, advanced production equipment, and strict quality management system, the company has earned the trust of customers worldwide.

1. [Cite:1] Hybrid ionic liquid amine solvents for CO₂ capture from natural gas: a systematic review of techno-economic and environmental performance, Carbon Capture Science & Technology, Volume 18, March 2026, 100549
2. [Cite:2] Lithium nitrate/Lithium bis(oxalate)borate dual-salt in sulfolane as nonflammable electrolyte for stable lithium-metal batteries, International Journal of Electrochemical Science, Volume 21, Issue 1, January 2026, 101267