Calculation of Density of Ionic Liquids From Development Redlich-Kwong Equation of State
کد مقاله : 1107-PHYSCHEM20
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چکیده مقاله:
In this study Redlich–Kwong equation of state is developed for calculation PρT properties of some ionic liquids. This equation of state is based on the generic Redlich–Kwong equation of state in which the parameters of this equation of state are dependent of density and temperature. In order to improve the predictive power of the mentioned equation of state for calculation of the density of ionic liquids, modifications on the parameters of this equation of state have been considered. The ionic liquids under consideration in this work include‌‌ the‌ cation: imidazolium ‌and‌ anions: Tetrafluoroborate, Thiocyanate, Trifluormethanesulfonate, Ethylsulfat, bis (Trifluoromethylsulfonly) ‌‌imide‌‌ and Hexafluorophosphate. We will see that the comparison of predicted densities from the modified equation of state and experimental data shows high ability of this equation in predicting PρT properties of ionic liquids. The overall average deviation percent of the calculated density of ionic liquids obtained by this equation of state is 0.08 %.
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Keywords: Equation of State; Ionic Liquids; Density
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