Shaukat, Saadia and Buchner, Richard (2011) Densities, Viscosities [from (278.15 to 318.15) K], and Electrical Conductivities (at 298.15 K) of Aqueous Solutions of Choline Chloride and Chloro-Choline Chloride. JOURNAL OF CHEMICAL AND ENGINEERING DATA, 56 (12). pp. 4944-4949. ISSN 0021-9568, 1520-5134
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Data for the electrical conductivity (at 298.15 K), density, and viscosity [both at (278.15, 288.15, 298.15, 308.15, and 318.15) K] of aqueous solutions of choline chloride (ChCl) and chloro-choline chloride (Cl-ChCl) are reported for solute molalities m less than or similar to 2.0 mol.kg(-1) (ChCl) and less than or similar to 2.1 mol.kg(-1) (Cl-ChCl), respectively. From the densities apparent molar volumes were calculated, and the limiting partial molar volumes and Hepler's constants of ChCl(aq) and Cl-ChCl(aq) were evaluated. From the viscosities Arrhenius activation energies of viscous flow were determined. While apparent molar volumes suggest at best weak ion pairing for ChCl(aq) and Cl-ChCl(aq), the Walden product obtained for 25 degrees C hints at significant ion-ion interactions and/or changes in ion hydration with increasing concentration.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOLAL VOLUMES; SODIUM-CHLORIDE; WATER; ELECTROLYTES; TEMPERATURES; CONDUCTANCE; APPARENT; |
| 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: | 27 May 2020 05:04 |
| Last Modified: | 27 May 2020 05:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19747 |
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