Physical Properties of Binary Mixtures of the Ionic Liquid 1-Ethyl-3-methylimidazolium Ethyl Sulfate with Several Alcohols at T = (298.15, 313.15, and 328.15) K and Atmospheric Pressure

Abstract

In this contribution, dynamic viscosities, densities, and speeds of sound of 1-ethyl-3-methylimidazolium ethyl sulfate (EMISE) with methanol, 1-propanol, and 2-propanol at T ) (298.15, 313.15, and 328.15) K and refractive indices at T ) 298.15 K and at atmospheric pressure have been measured over the whole composition range. Excess molar volumes, excess molar isentropic compressions, and viscosity deviations for the binary systems from T ) 298.15 K to T ) 328.15 K and refractive deviations at 298.15 K have been calculated and were satisfactorily fitted to a Redlich-Kister equation to give the fitting parameters and the root-mean-square deviations.

Volumetric Properties of Binary Mixtures of 2,4,6-Trimethylpyridine with 1,2-Ethanediol, Methanol, and Water, and the Association Energies of the O–H· · ·N Bonded Complexes

“…The purity of the liquid samples is evidenced by the measured densities that are very close to literature data ( Table 1). The chemicals were stored in dark Methanol 786.549 786.37 [22], 786.4 [23], 786.49 [24], 786.5 [25,26], 786.6 [27], 786. 64 [28], 786.65 [29], 786.654 [30] 1,2-Ethanediol 1109.868 1109.6 [31], 1109.7 [32], 1109.87 [33], 1109.88 [34], 1109.90 [35], 1109.91 [36] glass flasks, the alcohols at room temperature, while 2,4,6-trimethylpyridine, which is chemically unstable, in a refrigerator.…”

Kinetics and solvent effects in the synthesis of ionic liquids: imidazolium

“…25 Moreover, some ILs or their intermediates are actually higher meltingpoint solids, which would require much different processing techniques than for liquid solutions. For instance, the liquidphase reaction between 1-methylimidazole and 1-bromoethane, mentioned above for its exothermicity, forms a solid compound at room-temperature and melts to a viscous liquid at 76…”

Densities, excess volumes, isobaric expansivity, and isothermal compressibility of the (1-ethyl-3-methylimidazolium ethylsulfate + methanol) system at temperatures (283.15 to 333.15) K and pressures from (0.1 to 35) MPa

“…They were measured at T = (293 to 415) K and under (0.1 to 40) MPa. Densities or excess volumes for the mixtures containing 1-ethyl-3-methylimidazolium ethylsulfate have been measured under normal pressure for binary systems with methanol [22], ethanol [19,20], 1-propanol [22], 2-propanol [22], and water [17,20,21,23,24]. The latter data were determined over a wide temperature range (278.15 to 348.15) K. The density data for one ternary system of ([C 2 mim][EtSO 4 ] + ethanol + 2-ethoxy-2-methylpropane) have also been reported in the literature [19].…”