Imidazolium-based ionic liquids containing FAP anion: Thermodynamic study

被引：11
|
作者：
Zaitsau, Dzmitry H. [1 ,2 ]
Verevkin, Sergey P. [1 ,2 ,3 ]
机构：
[1] Univ Rostock, Dept Phys Chem, Dr Lorenz Weg 2, D-18059 Rostock, Germany
[2] Univ Rostock, Dept Sci & Technol Life Light & Matter, Dr Lorenz Weg 2, D-18059 Rostock, Germany
[3] Kazan Fed Univ, Dept Phys Chem, Kremlevskaya Str 18, Kazan 420008, Russia
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2019年 / 287卷
基金：
俄罗斯基础研究基金会;
关键词：
Ionic liquid; Enthalpy of vaporization; Enthalpy of solution; Vapor pressure; Enthalpy of formation; VAPORIZATION ENTHALPIES; COMBUSTION CALORIMETRY; HEAT-CAPACITIES; VAPOR-PRESSURE; TEMPERATURE; DENSITY; SOLUBILITY;
D O I：
10.1016/j.molliq.2019.110959
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
New experimental vapor pressures and vaporization enthalpies of the ionic liquids (ILs) [C(2)mim][FAP], [C(4)mim] [FAP] , and [C(6)mim][FAP] with [FAP] = tris(pentafluoroethyl)trifluorophosphate have been measured by the Langmuir method combined with the Quartz Crystal Microbalance. Linear dependence of vaporization enthalpies on alkyl chain length was observed. Gas-phase enthalpies of formation of ILs were calculated by quantum chemistry. Solution enthalpies of ILs available from the literature were used for calculation the aqueous enthalpy of formation of the Delta H-f(m)o(FAP(aq)(-)) anion in combination with quantum-chemical results. These results will facilitate chemical engineering calculations of processes involving ILs. (C) 2019 Elsevier B.V. All tights reserved.
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页数：8
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