کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
216073 | 1426262 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Densities and derived thermodynamic properties of binary (alkanol + boldine) mixtures in the compressed liquid region Densities and derived thermodynamic properties of binary (alkanol + boldine) mixtures in the compressed liquid region](/preview/png/216073.png)
In this work, densities of two binary systems of {alkanol (ethanol and 1-propanol) + boldine} are measured at temperatures from (313 to 363) K and pressures up to 20 MPa using an Anton Paar vibrating tube densimeter. Each (alkanol + boldine) system was prepared at five diluted compositions with respect to the alkaloid. These are (x2 = 0.0012, 0.0074, 0.0136, 0.0196, 0.0267) and (x2 = 0.0018, 0.0046, 0.0077, 0.0112, 0.0142) mixed in ethanol and 1-propanol, respectively. Experimental densities are correlated using an empirical 6-parameter equation with deviations within 0.04%. Extrapolated densities at atmospheric pressure agree with the literature data. Isobaric expansivity, isothermal compressibility, thermal pressure coefficient, and internal pressure have been calculated.
► We measured densities for {alkanol (ethanol or 1-propanol) + boldine} mixtures.
► Liquid densities are reported in the ranges of (1 to 20) MPa and (313 to 363) K.
► Thermodynamic derived properties were calculated using an empirical correlation.
► Extrapolated densities at atmospheric pressure agree with the literature data.
Journal: The Journal of Chemical Thermodynamics - Volume 51, August 2012, Pages 126–131