The densities, ρ, speeds of sound, u, and dynamic viscosities, η, of pure 1-ethyl-3-methylimidazolium trifluoromethanesulfonate, ([EMIM][CF₃SO₃]), dimethyl sulfoxide, (DMSO), acetonitrile, (ACN), and their binary and ternary mixtures have been measured experimentally over the entire composition range and at temperatures of 298.15, 303.15, 308.15, 313.15, 318.15, and 323.15 K and at a pressure of 0.1 MPa. The excess molar volume, V^E, excess molar isentropic compressibility, K_s,m^E, viscosity deviations, Δη, Gibbs energy of activation, ΔG*, and excess Gibbs energy of activation, ΔG^*E have been calculated using the experimental ρ, u, and η values of pure [EMIM][CF₃SO₃], DMSO, ACN, and their binary/ternary mixtures at the studied temperatures and pressure. The excess/deviations properties for the studied binary/ternary systems have been fitted to Redlich–Kister equation. The variations of these parameters with composition and temperature are discussed in terms of ion–ion, ion–dipole, and dipole–dipole interactions prevailing in these mixtures. The excess molar volumes of each binary system have also been correlated to the Prigogine–Flory–Patterson (PFP) theory. Some semiempirical models for correlation/prediction of experimental dynamic viscosity data for studied binary and V^E, K_s,m^E, Δη, and ΔG^*E for ternary mixtures have been applied.

中文翻译：

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1-乙基-3-甲基-咪唑三氟甲磺酸盐+二甲基亚砜和/或乙腈在T = 298.15至323.15 K和P = 0.1 MPa时的过量摩尔体积，过量等熵可压缩性，粘度偏差和活化参数

纯粹的1-乙基-3-甲基咪唑三氟甲烷磺酸盐（[EMIM] [CF ₃ SO ₃ ]），二甲亚砜（DMSO），乙腈的密度ρ，声速u和动态粘度η ACN）及其二元和三元混合物已在整个组成范围内，温度为298.15、303.15、308.15、313.15、318.15和323.15 K且压力为0.1 MPa的条件下进行了实验测量。过量摩尔体积V ^E，过量摩尔等熵压缩率K _s，m ^E，粘度偏差Δη，吉布斯活化能ΔG *和过量吉布斯活化能ΔG ^{* E}已经使用纯[EMIM] [CF ₃ SO ₃ ]，DMSO，ACN及其在研究的温度和压力下的二元/三元混合物的实验ρ，u和η值进行了计算。研究的二元/三元系统的超额/偏差性质已拟合到Redlich-Kister方程。根据这些混合物中普遍存在的离子-离子，离子-偶极和偶极-偶极相互作用，讨论了这些参数随组成和温度的变化。每个二元体系的过量摩尔体积也与Prigogine-Flory-Patterson（PFP）理论相关。用于研究二元和V ^E，K的实验动态粘度数据的相关/预测的一些半经验模型_s，m ^E，Δη和ΔG ^{* E}适用于三元混合物。