Shaukat, S. 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 & Engineering Data 56 (12), pp. 4944-4949.
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Data for the elec. cond. (at 298.15 K), d., and viscosity [both at (278.15, 288.15, 298.15, 308.15, and 318.15) K] of aq. solns. of choline chloride (ChCl) and chloro-choline chloride (Cl-ChCl) are reported for solute molalities m .ltorsim. 2.0 mol/kg-1 (ChCl) and .ltorsim. 2.1 mol/kg-1 (Cl-ChCl), resp. From the densities apparent molar volumes were calcd., and the limiting partial molar volumes and Hepler's consts. of ChCl(aq) and Cl-ChCl(aq) were evaluated. From the viscosities Arrhenius activation energies of viscous flow were detd. While apparent molar volumes suggest at best weak ion pairing for ChCl(aq) and Cl-ChCl(aq), the Walden product obtained for 25 °C hints at significant ion-ion interactions and/or changes in ion hydration with increasing concn.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner|
|Keywords:||density viscosity cond molar vol choline chlorocholine chloride|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||05 Jun 2012 11:46|
|Last Modified:||02 Jul 2012 14:16|