Experimental densities, dynamic viscosities and surface tensions of the ionic liquids series 1-ethyl-3-methylimidazolium acetate and dicyanamide and their binary and ternary mixtures with water and ethanol at T = (298.15 to 343.15 K)
Experimental densities, dynamic viscosities and surface tensions of the ionic liquids series 1-ethyl-3-methylimidazolium acetate and dicyanamide and their binary and ternary mixtures with water and ethanol at T = (298.15 to 343.15 K)
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DOI：
10.1016/j.jct.2012.02.027
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发表时间：
2012-08-01
影响因子：
2.6
通讯作者：
de Haan, A. B.
中科院分区：
文献类型：
--
作者：
Quijada-Maldonado, E.;van der Boogaart, S.;de Haan, A. B.
在本文中，给出了大气压下宽温度范围（298.15 至 343.15 K）下含有乙酸根和二氰胺阴离子的 1-乙基-3-甲基咪唑鎓基离子液体（IL）的实验密度和动态粘度。这些离子液体的表面张力在 T = 298.15 K 下测量。在二元和三元混合物中研究了水和/或乙醇组合物对这些离子液体的密度和动态粘度的影响。使用二次混合规则来关联二元和三元液体密度。推荐用于极性和水性体系的 Eyring-Patel-Teja 模型用于关联二元和三元混合物中整个成分和温度范围内的动态粘度数据。这里引入与温度相关的相互作用参数来解释粘度随温度的变化，显示出与实验数据的良好一致性。 (C) 2012 Elsevier Ltd. 保留所有权利。
In this paper, experimental densities and dynamic viscosities of 1-ethyl-3-methylimidazolium based ionic liquids (ILs) with the anions acetate and dicyanamide are presented in a wide temperature range (298.15 to 343.15 K) at atmospheric pressure. Surface tension of these ILs was measured at T = 298.15 K. The effect of water and/or ethanol compositions on densities and dynamic viscosities of these ILs are studied in binary and ternary mixtures. A quadratic mixing rule was used to correlate binary and ternary liquid densities. The Eyring-Patel-Teja model, which is recommended for polar and aqueous systems, is used to correlate dynamic viscosity data over the whole range of compositions and temperatures in binary and ternary mixtures. Temperature-dependent interaction parameters are introduced here to account for the changes of viscosities with temperature showing good agreements with experimental data. (C) 2012 Elsevier Ltd. All rights reserved.