Critical Properties, Normal Boiling Temperature, and Acentric Factor of Another 200 Ionic Liquids
Critical Properties, Normal Boiling Temperature, and Acentric Factor of Another 200 Ionic Liquids
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DOI：
10.1021/ie071055d
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发表时间：
2008-01
影响因子：
4.2
通讯作者：
J. Valderrama;†§ and Wilson W. Sanga;J. A. Lazzús
中科院分区：
文献类型：
--
作者：
J. Valderrama;†§ and Wilson W. Sanga;J. A. Lazzús
基于Lydersen、Joback和Reid的概念，采用扩展基团贡献法测定了200种离子液体的临界性质、正常沸点温度和偏心因子。该方法不需要任何额外的数据，除了分子的结构和分子质量的知识。由于离子液体的实验临界性质是不可用的，该方法的准确性进行检查，通过计算的离子液体的液体密度的研究中考虑的实验数据可在文献中。结果表明，临界性质，正常沸腾温度和偏心因子的值是足够准确的工程计算，广义关联式，状态方程的方法，以及其他应用。
The critical properties, the normal boiling temperature, and the acentric factor of 200 ionic liquids have been determined using an extended group contribution method, which is based on the well-known concepts of Lydersen and Joback and Reid, that was developed by the authors. The method does not require any additional data besides knowledge of the structure of the molecule and its molecular mass. Because experimental critical properties of ionic liquids are not available, the accuracy of the method is checked by calculating the liquid density of the ionic liquids considered in the study for which experimental data are available in the literature. The results show that the values determined for the critical properties, the normal boiling temperature, and the acentric factor are sufficiently accurate for engineering calculations, generalized correlations, and equation of state methods, among other applications.