Solvation of the Ionic Liquid [C4mim][PF6] in Aqueous Ethanol Solutions from Molar Volume, Viscosity and Conductivity Measurements
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Jianji Wang
Abstract
Standard partial molar volumes V2,Φ0, viscosity B-coefficients and molar conductivities λm for the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate [C4mim][PF6] in aqueous ethanol solutions (xethanol = 0.5∼0.9) have been determined from density, viscosity and conductivity measurements at 298.15 K. It is shown that values of V2,Φ0 decrease, while those of viscosity B-coefficients increase with increasing mole fraction of ethanol in the solvents. The molar conductivities of the ionic liquid are found to be decreased with increase of both the ionic liquid concentration and the ethanol content in the systems. Experimental results have been discussed in terms of the ionic liquid–solvent interactions and the ion associations of the ionic liquid in aqueous ethanol solutions.
© Oldenbourg Wissenschaftsverlag, München
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Articles in the same Issue
- Attacking a Small Beast: Ar–CO, a Prototype for Intermolecular Forces
- The Heats of Chemical Reactions: the Van't-Hoff Equation and Calorimetry
- Ion-Association and Solvation of Some Copper (I), Silver (I) and Tetraalkylammonium Salts in Binary Mixtures of Acetonitrile with n-Butyronitrile and N,N-Dimethylacetamide
- Influence of Molecular Hindered Rotations on NQR Spin Echoes
- Aerobic Oxidation of Benzyl Alcohol by Fe-System Catalyst
- Vapor Pressure Measurements of LiI + C2H5OH Solutions
- Solvation of the Ionic Liquid [C4mim][PF6] in Aqueous Ethanol Solutions from Molar Volume, Viscosity and Conductivity Measurements
- The Thermal Decomposition Kinetics of [Co(bipy)(H2O)4](C4H4O4)·4H2O
- Empirical Models of the Pair-Polarizability Trace and Anisotropy from Polarized and Depolarized Interaction-Induced Light Scattering Spectra for Gaseous Krypton
- Averaged Trajectory of Random Walk Fluctuations Having a Fixed Lifetime and its Application in Characterization of Simplest Chemical Equilibrium
- Book Review
