文献类型：期刊文献

英文题名：Asymmetric criticality of ionic solution containing 1-hexyl-3-methylimidazolium tetrafluoroborate and 2-propanol

作者：Zhang, Xianshuo[1];Xu, Chen[2];Zheng, Peizhu[1];Yin, Tianxiang[2];Shen, Weiguo[1,2]

机构：[1]Lanzhou Univ, Dept Chem, Lanzhou 730000, Gansu, Peoples R China;[2]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：100

起止页码：116

外文期刊名：JOURNAL OF CHEMICAL THERMODYNAMICS

收录：;EI(收录号：20161802330635);WOS:【SCI-EXPANDED(收录号:WOS:000376187200013)】；

基金：This work was supported by the National Natural Science Foundation of China (Projects 21373085, 21303055 and 21403098) and Natural Science Foundation of Gansu Province (1506RJYA237).

语种：英文

外文关键词：Coexistence curve; Heat capacity; Complete scaling theory; Asymmetric coefficient; Solvophobic criticality

摘要：The liquid-liquid coexistence curve for binary solution {2-propanol + 1-hexyl-3-methylimidazolium tetrafluoroborate ([C(6)mim][BF4])} has been measured. The isobaric heat capacities per unit volume were obtained in both critical and non-critical regions. The critical exponents alpha and beta were deduced and showed good agreement with those predicted for the 3D-Ising universality class. The asymmetric behaviour of the diameter of the coexistence curve was analysed based on the complete scaling theory, which indicated that the heat capacity related term plays an important role in describing the asymmetric behaviour of the coexistence curve. Furthermore, the RPM (restricted primitive model)-rescaled critical parameters were calculated and suggested the solvophobic criticality for this system. (C) 2016 Published by Elsevier Ltd.