کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
215329 | 1426234 | 2014 | 6 صفحه PDF | دانلود رایگان |
• 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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Journal: The Journal of Chemical Thermodynamics - Volume 79, December 2014, Pages 94–99