Density and Surface Tension of Ionic Liquid [C2mim][PF3(CF2CF3)3] and Prediction of Properties [Cnmim][PF3(CF2CF3)3] (n=1, 3, 4, 5, 6)

被引:56
作者
Liu, Qing-Shan [1 ]
Tong, Jing [2 ]
Tan, Zhi-Cheng [1 ,3 ]
Welz-Biermann, Urs [1 ]
Yang, Jia-Zhen [2 ]
机构
[1] Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Peoples R China
[2] Liaoning Univ, Key Lab Green Synth & Preparat Chem Adv Mat, Shenyang 110036, Peoples R China
[3] Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
关键词
TEMPERATURE MOLTEN-SALTS; PHYSICOCHEMICAL PROPERTIES; THERMODYNAMIC PROPERTIES; HEXAFLUOROPHOSPHATE; VISCOSITY; MODEL;
D O I
10.1021/je901035d
中图分类号
O414.1 [热力学];
学科分类号
摘要
The density and surface tension of the air- and water-stable hydrophobic ionic liquid (IL) 1-ethyl-3-methylimizazolium tris(pentafluoroethyl) trifluorophosphate (CAS Registry No.: 377739-43-0; [C(2)mim[PF3(CF2CF3)(3)]) were measured in the range of T = (283.15 to 338.15) K. The other physicochemical properties of the IL [C(2)mim][PF3(CF2CF3)(3)] at 298.15 K were estimated in terms of empirical and semiempirical equations, as well as the interstice model theory. These properties include molecular volume, standard molar entropy, lattice energy, the parachor, molar enthalpy of vaporization, interstice volume, thermal expansion coefficient, interstice fraction, and so forth. Then, the physicochemical properties of the ILs [C(n)mim][PF3(CF2CF3)(3)] (n = 1, 3, 4, 5, 6) family were predicted in terms of the estimated values of molecular volume and the parachor.
引用
收藏
页码:2586 / 2589
页数:4
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