کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
215329 1426234 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low-temperature heat capacity and derived thermodynamic properties for 1-methyl-3-propylimidazolium bromide and 1-butyl-3-methylimidazolium iodide
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Low-temperature heat capacity and derived thermodynamic properties for 1-methyl-3-propylimidazolium bromide and 1-butyl-3-methylimidazolium iodide
چکیده انگلیسی


• Thermodynamic properties of two ionic liquids were determined from calorimetric measurements.
• Heat capacities of liquid [C4mim]Hal are independent of the halide.
• Residual entropies of glassy [C4mim]Hal are independent of the halide.

Heat capacity in the temperature range (5 to 370) K and parameters of fusion and the glass transition were determined for 1-methyl-3-propylimidazolium bromide and 1-butyl-3-methylimidazolium iodide. Thermodynamic properties of the compounds in the condensed state in a range of temperatures (0 to 370) K were calculated from the obtained data. It was demonstrated that heat capacities of liquid 1-butyl-3-methylimidazolium halides coincide within the experimental uncertainties, similar consistency is observed for residual entropy of the glassy compounds.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 79, December 2014, Pages 94–99
نویسندگان
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