Abstract
The experimental measurements of the speed of sound and density of aqueous solutions of imidazolium based ionic liquids (IL) in the concentration range of 0.05 mol · kg-1 to 0.5 mol · kg-1 at T = 298.15 K are reported. The data are used to obtain the isentropic compressibility (ßS) of solutions. The apparent molar volume (phiV) and compressibility (phiKS) of ILs are evaluated at different concentrations. The data of limiting partial molar volume and compressibility of IL and their concentration variation are examined to evaluate the effect due to IL–water and IL–IL interactions. The results have been discussed in terms of hydrophobic hydration, hydrophobic interactions, and water structural changes in aqueous medium.
Original language | English |
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Pages (from-to) | 695-701 |
Number of pages | 7 |
Journal | The Journal of Chemical Thermodynamics |
Volume | 40 (4) |
Issue number | 4 |
DOIs | |
Publication status | Published - Apr 2008 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry