کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
216256 | 1426264 | 2012 | 5 صفحه PDF | دانلود رایگان |
Osmotic coefficients of the solutions of room temperature ionic liquid N-R-4-(N,N-dimethylamino)pyridinium tetrafluoroborate (R = C4H9, C5H11, C6H13) in ethanol have been measured at T = 298.15 K by the isopiestic method. The experimental osmotic coefficients have been correlated using the ion interaction model of Pitzer, electrolyte non-random two liquid (e-NRTL) model of Chen, non-random factor (NRF) and a fourth-order polynomial in terms of molality. The vapour pressures of the solutions studied have been evaluated from the osmotic coefficients.
► The osmotic coefficients of the solutions of ionic liquid in ethanol have been measured.
► Measured osmotic coefficients were correlated using Pitzer, e-NRTL and NRF models and polynomial equation.
► Vapour pressures were evaluated from the correlated osmotic coefficients.
Journal: The Journal of Chemical Thermodynamics - Volume 49, June 2012, Pages 70–74