2009
DOI: 10.1007/s10765-009-0648-5
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Volumetric and Isentropic Compressibility Behavior of Ionic Liquid, 1-Propyl-3-Methylimidazolium Bromide in Acetonitrile, Dimethylformamide, and Dimethylsulfoxide at T = (288.15 to 308.15) K

Abstract: Density and speed-of-sound data for 1-propyl-3-methylimidazolium bromide ([C 3 mim][Br]) + acetonitrile (MeCN), [C 3 mim][Br] + dimethylformamide (DMF), and [C 3 mim][Br] + dimethylsulfoxide (DMSO) binary mixtures in the dilute concentration region are reported at T = (288.15 to 308.15) K. From these data, apparent molar volume, isentropic compressibility, excess molar volume, and isentropic compressibility deviation values have been calculated. Negative deviations from the ideal behavior of both molar volume … Show more

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Cited by 42 publications
(11 citation statements)
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“…In an electrolyte solution, the value for k s is the sum of two contributions, k s (solvent intrinsic) and k s (solute intrinsic). Here, the k s value for the solvent is due to the compression of the solvent structure, and the k s value of the solute is due to the compression of the solvation shell of ions and intermolecular distance of the [Emim]­[BF4] chains (vacant volume) and also the incorporation of solvent molecules into the [Emim]­[BF4] chains (like the [Pmim]­[Br] + DMF system) . As it can be observed in Figures c and c, the Δ k s values are negative and become more negative with an increase in the temperature, and for [Emim]­[BF4] (1) + DMF (2) (Figure c) they are more negative compared to [Emim]­[BF4] (1) + DMA (2) (Figure c) with an increase in the temperature.…”
Section: Resultsmentioning
confidence: 83%
“…In an electrolyte solution, the value for k s is the sum of two contributions, k s (solvent intrinsic) and k s (solute intrinsic). Here, the k s value for the solvent is due to the compression of the solvent structure, and the k s value of the solute is due to the compression of the solvation shell of ions and intermolecular distance of the [Emim]­[BF4] chains (vacant volume) and also the incorporation of solvent molecules into the [Emim]­[BF4] chains (like the [Pmim]­[Br] + DMF system) . As it can be observed in Figures c and c, the Δ k s values are negative and become more negative with an increase in the temperature, and for [Emim]­[BF4] (1) + DMF (2) (Figure c) they are more negative compared to [Emim]­[BF4] (1) + DMA (2) (Figure c) with an increase in the temperature.…”
Section: Resultsmentioning
confidence: 83%
“…The solvents were used without further purification. The density, thermal expansion coefficient, refractive index, and speed of sound of materials were measured at temperatures of 293.15–333.15 K and atmospheric pressure and compared to data available in the literature studies , (Table S1). The experimental data show good agreement with the data reported in the literature studies.…”
Section: Methodsmentioning
confidence: 99%
“…AARD for DMA is 0.04% [19], 0.08% [20], 0.06% [21], 0.05% [22], 0.88% [23], 0.07% [24], 0.07% [25], 0.06% [26], 0.15% [27], 0.03% [28]. AARD for DMF is 0.02% [29], 0.07% [20], 0.16% [30], 0.10% [19], 0.09% [31], 0.19% [32], 0.18% [33], 0.14% [34], 0.09% [27], 0.09% [35], 0.04% [28], 0.17% [36], 0.07% [37], 0.14% [38], 0.03% [39], 0.13% [40]. AARD for DMSO is 0.14% [41], 0.02% [42], 0.02% [43], 0.01% [44], 0.02% [45], 0.01% [18], 0.03% [33], 0.08% [35], 0.02% [46], 0.05% [47], 0.05% [48], 0.02% [37].…”
Section: Experimental Density Datamentioning
confidence: 99%