https://scholars.lib.ntu.edu.tw/handle/123456789/410291
Title: | Density and Viscosity Measurements for Binary Mixtures of 1-Ethyl-3-methylimidazolium Tetrafluoroborate ([Emim][BF <inf>4</inf> ]) with Dimethylacetamide, Dimethylformamide, and Dimethyl Sulfoxide | Authors: | Fan, Xian Heng YAN-PING CHEN Su, Chie Shaan |
Issue Date: | 11-Feb-2016 | Publisher: | AMER CHEMICAL SOC | Journal Volume: | 61 | Journal Issue: | 2 | Start page/Pages: | 920 | Source: | Journal of Chemical and Engineering Data | Abstract: | © 2016 American Chemical Society. The density and viscosity data of three binary liquid mixtures containing the ionic liquid (IL) 1-ethyl-3-methylimidazolium tetrafluoroborate and organic solvents, dimethylacetamide (DMAC), dimethylformamide (DMF), and dimethyl sulfoxide (DMSO) were obtained under atmospheric pressure, at temperatures of 303.15 to 333.15 K over the entire composition range. A vibrating-tube digital density meter and a capillary viscometer were used for density and viscosity measurements, respectively. Excess molar volumes (V E ) and viscosity deviations (Δη) for the binary mixture system were calculated from the experimental data and were satisfactorily fitted with the Redlich-Kister equation. Adding DMAC, DMF, and DMSO led to negative values of V E and Δη. This finding revealed that the packing of the constituents was more efficient, and the anion-cation interaction of IL was decreased in the binary liquid mixtures. The sequences of V E and Δη for the three binary liquid mixtures in this study are also discussed using intermolecular interactions. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/410291 | ISSN: | 00219568 | DOI: | https://api.elsevier.com/content/abstract/scopus_id/84959327514 10.1021/acs.jced.5b00753 |
Appears in Collections: | 化學工程學系 |
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