کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
216196 1426266 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Volumetric and surface properties of pure ionic liquid n-octyl-pyridinium nitrate and its binary mixture with alcohol
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Volumetric and surface properties of pure ionic liquid n-octyl-pyridinium nitrate and its binary mixture with alcohol
چکیده انگلیسی

The density and surface tension for pure ionic liquid N-octyl-pyridinium nitrate were measured from (293.15 to 328.15) K. The coefficient of thermal expansion, molecular volume, standard entropies, and lattice energy were calculated from the experimental density values. The critical temperature, surface entropy, surface enthalpy, and enthalpy of vaporization were also studied from the experimental surface tension results. Density and surface tension were also determined for binary mixtures of (N-octyl-pyridinium nitrate + alcohol) (methanol, ethanol, and 1-butanol) systems over the whole composition range at 298.15 K and atmospheric pressure. Excess molar volumes and surface tension deviations for the binary systems have been calculated and were fitted to a Redlich–Kister equation to determine the fitting parameters and the root mean square deviations. The partial molar volume, excess partial molar volume, and apparent molar volume of the component IL and alcohol in the binary mixtures were also discussed.


► Density and surface tension of [Ocpy][NO3] were measured.
► Thermal expansion coefficient, molecular volume, and standard entropies were obtained.
► The critical temperature and enthalpy of vaporization were discussed.
► Density and surface tension were measured for (ionic liquid + alcohols) mixtures.
► Excess molar volumes and surface tension deviations were fitted to Redlich–Kister equation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 47, April 2012, Pages 203–208
نویسندگان
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