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The solubility parameters of ionic liquids
1Department of Physical Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; E-Mail: a.marciniak@ch.pw.edu.pl ; Tel.: +48-222-345-816;
International Journal of Molecular Sciences
|June 19, 2010
Summary
Hildebrand
Area of Science:
- Physical Chemistry
- Materials Science
Background:
- Ionic liquids (ILs) are versatile solvents with tunable properties.
- Understanding their solubility behavior is crucial for various applications.
Purpose of the Study:
- To calculate Hildebrand's solubility parameters for 18 ionic liquids.
- To explore the utility of these parameters in predicting solubility and estimating thermodynamic properties.
Main Methods:
- Inverse gas chromatography (IGC) was employed to measure activity coefficients at infinite dilution.
- Retention data from IGC were used to determine Hildebrand's solubility parameters.
Main Results:
- Hildebrand's solubility parameters were successfully calculated for 18 ionic liquids.
- The calculated parameters enable predictions of IL solubility in binary solvent mixtures.
- Standard enthalpies of vaporization for the ionic liquids were estimated.
Conclusions:
- Hildebrand's solubility parameters derived from IGC are valuable for assessing ionic liquid miscibility.
- This method provides a pathway for estimating thermodynamic properties of ionic liquids.
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