反气相色谱法测定有机溶剂在离子液体1-丁基-3-甲基咪唑六氟磷酸盐中的热力学参数（英文）  

Determination of Thermodynamic Parameters of Organic Solvents in Ionic Liquid 1-Butyl-3-methylimidazolium Hexafluorophosphate by Inverse Gas Chromatography

作　　者：田洛阳[1,2] 陈亚丽[3] 王强[1,2] 

机构地区：[1]新疆大学理化测试中心,乌鲁木齐830046 [2]新疆大学化学化工学院煤化工重点实验室,乌鲁木齐830046 [3]中国科学院新疆生态与地理研究所,乌鲁木齐830046

出　　处：《应用化学》2017年第7期824-832,共9页Chinese Journal of Applied Chemistry

基　　金：Supported by the National Natural Science Foundation of China(No.21366029,No.21566036)~~

摘　　要：在343.15~373.15 K温度范围内,采用反气相色谱法(IGC)测试了18种有机溶剂在离子液体1-丁基-3-甲基咪唑六氟磷酸盐([BMIM]PF_6)中的热力学参数。在测试温度范围内计算了有机溶剂与[BMIM]PF_6之间的摩尔吸收焓、质量分数活度系数、Flory-Huggins相互作用参数、偏摩尔混合焓和无限稀释活度系数等热力学参数。结果表明,所选的有机溶剂中,正构烷烃、环己烷、四氢呋喃、乙醚和四氯化碳为[BMIM]PF_6的不良溶剂。相比之下,苯、甲苯、间二甲苯、二氯甲烷、丙酮、氯仿、乙酸乙酯、乙酸甲酯、乙醇和甲醇是[BMIM]PF_6的良溶剂。Thermodynamic parameters of eighteen kinds of organic solvents in ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate（ [BMIM]PF6 ） were determined by inverse gas chromatography （IGC） from 343.15 to 373.15 K. The molar enthalpy of sorption, mass fraction activity coefficient, Flory-Huggins interaction parameter, partial molar enthalpy of mixing, and activity coefficient at infinite dilution, were calculated to determine the interactions between [ BMIM ] PF6 and selected solvents at the indicated temperature range, n-Alkanes, cyclohexane, tetrahydrofuran, ether, and carbon tetrachloride were found to be poor solvents for [ BMIM] PF6, while benzene, toluene, m-xylene, dichloromethane, acetone, chloroform, ethyl acetate, methyl acetate, ethanol, and carbinol were favorable solvents for this ionic liquid.

关 键 词：反气相色谱法 离子液体 Flory-Huggins相互作用参数 无限稀释活度系数 

分 类 号：O642.4[理学—物理化学]