Density, Viscosity, and Refractive Index Properties for the Binary Mixtures of n-Butylammonium Acetate Ionic Liquid + Alkanols at Several Temperatures
Density, Viscosity, and Refractive Index Properties for the Binary Mixtures of n-Butylammonium Acetate Ionic Liquid + Alkanols at Several Temperatures
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DOI：
10.1021/je200707b
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发表时间：
2012-01
影响因子：
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通讯作者：
Yingjie Xu;Jia Yao;Congmin Wang;Haoran Li
中科院分区：
文献类型：
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作者：
Yingjie Xu;Jia Yao;Congmin Wang;Haoran Li
测定了乙酸丁基铵离子液体(N4AC)与甲醇、乙醇、正丙醇和正丁醇的二元混合物在常压(293.15、298.15、303.15、308.15和313.15)K下的密度和粘度。在298.15 K下测量了上述二元混合物的折射率，得到了超额摩尔体积VE、粘度偏差Δη和折射率偏差ΔND，并用Redlich-Kister方程进行了拟合。关联结果与实验数据吻合较好，并给出了最佳的拟合参数。结果从N4AC+烷醇混合物的相互作用和结构因素的角度进行了解释。
Densities and viscosities were determined for the binary mixtures of n-butylammonium acetate ionic liquid (N4AC) with methanol, ethanol, n-propanol, and n-butanol at temperatures of (293.15, 298.15, 303.15, 308.15, and 313.15) K under atmospheric pressure. The refractive indices of the above-mentioned binary mixtures were measured at 298.15 K. Excess molar volumes VE, viscosity deviations Δη, and refractive index deviations ΔnD were obtained from the experimental data and fitted with the Redlich–Kister equation. The correlation results were in good agreement with the experimental data, and optimal fitting parameters were presented. The results were interpreted in terms of interactions and structural factors of N4AC + alkanols mixtures.