کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
215268 | 1426233 | 2015 | 8 صفحه PDF | دانلود رایگان |
• Density data were obtained in the range T from (298 to 573) K and p up to 30 MPa.
• Standard molar volumes of two crown ethers in water are presented.
• Group contribution method was designed to estimate standard molar volumes of cyclic ethers.
Densities of dilute aqueous solutions of two cyclic ethers, viz. 15-crown-5 and 18-crown-6, measured over the temperature range from (298 to 573) K and at pressures up to 30 MPa using an automated flow vibrating-tube densimeter are reported. Standard molar volumes were evaluated from the measured data. Present data were combined with those obtained previously for several cyclic ethers and predictions of standard molar volumes based on group contribution approach were tested and analysed.
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Journal: The Journal of Chemical Thermodynamics - Volume 80, January 2015, Pages 41–48