Nikitina, Viktoriya A. and Nazet, Andreas and Sonnleitner, Thomas and Buchner, Richard (2012) Properties of Sodium Tetrafluoroborate Solutions in 1-Butyl-3-methylimidazolium Tetrafluoroborate Ionic Liquid. JOURNAL OF CHEMICAL AND ENGINEERING DATA, 57 (11). pp. 3019-3025. ISSN 0021-9568,
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Electrical conductivities, kappa, of sodium tetrafluoroborate solutions in 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) ionic liquid were measured in the wide temperature range of (238.15 to 458.15) K. Additionally, 0 their densities, rho, viscosities, eta, and molar conductivities, A, are reported for the temperature range (278.15 to 358.15) K, supplemented by dielectric data at 298.15 K. The values for and kappa are well-described by the Vogel-Fulcher-Tammann equatior. Walden plots, log(A) vs log(eta(-1)), for the NaBF4 solution; coincide with the straight line found for neat [bmim][BF4], indicating that the solute has only limited impact on the structure of the ionic liquid. This is corroborated by the similarity of the standard molar volume of NaBF4 and its intrinsic volume, which suggests that solute-induced electrostriction is weak. Within the experimental uncertainty, the dielectric properties of the most concentrated NaBF4 solution (0.1739 mol.kg(-1)) were found to be identical with those of pure [bmim][BF4].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CHLOROALUMINATE MOLTEN-SALTS; TEMPERATURE-DEPENDENCE; REDUCTION POTENTIALS; LITHIUM; ELECTRODES; BATTERIES; ELECTROLYTES; SOLVATION; PRESSURE; DYNAMICS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 May 2020 10:21 |
| Last Modified: | 04 May 2020 10:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/17877 |
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