Polar solvent (sulfone compounds) Sulfolane

Polar solvent (sulfone compounds) Sulfolane


  • Polar solvents having boiling points of 200°C or higher and high thermal stability.
  • Highly resistant to hydrolysis, stable against alkalis and acids.
  • High dielectric constant and readily soluble in various electrolytes.

Sulfolane is new polar solvents developed with organic sulfur compound synthesis technology of SUMITOMO SEIKA CHEMICALS. In combination with Sulfolane, they can be used as electrolytes for various electronic devices and as polar solvents for various reactions.


  • Electrolyte solvents for batteries, condensers, capacitors, solar batteries, etc.
  • Solvent for semiconductor cleaning.
  • Extraction solvent for removal of Benzene / Toluene / Xylene
  • Reaction solvent


スルフォラン テトラヒドロチオフェン-1,1-ジオキシド
  CAS No. Viscosity m.p. b.p. Permittivity
Tetrahydrothiophene 1,1-dioxide
126-33-0 10 mPa・s(30℃) 27℃ 285℃ 44(30℃)

Sulfolane General Specification

Item Specification
Purity 97.0~98.0%
Water 2.0~3.0%

Special Specification for Electronic Grade

Item Specification
Purity 99.9% min.
Metal Consultation Required

This web site uses cookies to help us provide you with a better experience, including providing you with the best possible information when you return. Please see our Privacy Policy on this web site for more information. When you use the web site, we would like you to agree to the use of cookies.

I agree.