Oxygen solubility in ionic liquids based on 1-alkyl-3-methylimidazolium cations

A. Chrobok*, S. Baj, Malgorzata Swadzba-Kwasny

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

This work presents the results of oxygen solubility in ionic liquids based on 1-alkyl-3-methylimidazolium cations. Solubility measurements have been carried out in gasometric apparatus at 22, 50 and 90 degrees C under atmospheric pressure. We report the Henry's constants. In general the occurrence of carbon-fluorine bonds and carbon-hydrogen bonds in ionic liquids (ILs) which can create hydrogen bonds with dissolved oxygen, significantly affects the growth of value of solubility constant K-H. Additionally, the stability of ILs towards molecular oxygen was tested. All ILs used in this study were stable in the presence of oxygen and free-radical initiator.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalPolish journal of chemistry
Volume81
Issue number3
Publication statusPublished - Mar 2007

Keywords

  • oxygen solubility
  • ionic liquids
  • solubility constant K-H
  • CATALYTIC REACTIONS
  • CARBON-MONOXIDE
  • GAS SOLUBILITY
  • TEMPERATURE
  • PRESSURE
  • SO2
  • CO2

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