Solid鈥揕iquid Equilibria of 1-Ethyl-3-methylimidazolium Hexafluorophosphate + Polyols

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• 作者：Lexing Xue ; Xianbao Cui ; Ying Zhang ; Tianyang Feng ; Zheng Tian ; Yanmei Peng
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2013
• 出版时间：September 12, 2013
• 年：2013
• 卷：58
• 期：9
• 页码：2389-2394
• 全文大小：269K
• 年卷期：v.58,no.9(September 12, 2013)
• ISSN：1520-5134

文摘

Solid鈥搇iquid equilibrium (SLE) data for binary system 1-ethyl-3-methylimidazolium hexafluorophosphate ([EMim][PF₆]) + polyols (ethane-1,2-diol, propane-1,2-diol, propane-1,2,3-triol) and ternary systems ([EMim][PF₆] + ethane-1,2-diol + propane-1,2-diol, [EMim][PF₆] + ethane-1,2-diol + propane-1,2,3-triol, [EMim][PF₆] + propane-1,2-diol + propane-1,2,3-triol) have been measured. The results show that the solubilities of [EMim][PF₆] in a single solvent decrease with the alkyl chain length and number of hydroxyl groups in polyols. The solubilities of [EMim][PF₆] in mixed solvents at the same temperature are in the order of ethane-1,2-diol + propane-1,2-diol > ethane-1,2-diol + propane-1,2,3-triol > propane-1,2-diol + propane-1,2,3-triol. The solid鈥搇iquid data for the binary and ternary systems are correlated by the NRTL equation, and the correlation results agree well with the experimental results.