Agieienko, Vira and Buchner, Richard (2021) A Comprehensive Study of Density, Viscosity, and Electrical Conductivity of (Choline Chloride plus Glycerol) Deep Eutectic Solvent and Its Mixtures with Dimethyl Sulfoxide. JOURNAL OF CHEMICAL AND ENGINEERING DATA, 66 (1). pp. 780-792. ISSN 0021-9568, 1520-5134
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The data for density (rho) and the transport properties viscosity (eta) and electrical conductivity (kappa) of a deep eutectic solvent (DES), glyceline, composed of choline chloride (ChCl) and glycerol at a 1:2 molar ratio are presented. Density was determined in the temperature range from T = (278.15 to 363.15) K, while measurements for eta and kappa were performed at T = (278.15 to 368.15) K and T = (278.15 to 338.15) K, respectively. The results were compared to the corresponding data provided in the literature, and their possible discrepancies are discussed. Addition- ally, rho(T), eta(T), and kappa(T) were determined for mixtures of glyceline with dimethyl sulfoxide (DMSO) covering an entire miscibility range. For both neat DES and its mixtures, density data vary linearly with temperature, whereas eta(T) and kappa(T) were best fit by the empirical Vogel-Fulcher-Tammann equation. For the {glyceline+DMSO} system, the analysis of excess molar properties revealed that observed deviations from ideal density are mainly caused by packing effects. Nevertheless, the presence of strong H-bonding is supported by the sign and temperature dependence of excess viscosity. Similar to concentrated solutions of conventional electrolytes, the conductivity of {glyceline+DMSO} mixtures shows a pronounced maximum. Expectedly, its position depends significantly on temperature but is also sensitive to the type of a hydrogen bond donor used to prepare the DES.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TEMPERATURE-RANGE 293.15; IONIC LIQUIDS; AQUEOUS MIXTURES; PHYSICAL-PROPERTIES; ETHYLENE-GLYCOL; THERMOPHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; ARTIFICIAL-INTELLIGENCE; REFRACTIVE-INDEXES; BINARY-MIXTURES; |
| 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: | 20 Sep 2022 05:30 |
| Last Modified: | 20 Sep 2022 05:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47582 |
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