کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9625906 | 460730 | 2005 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Excess molar volumes and excess molar enthalpies of binary and ternary mixtures of (ethanol or 1-butanol), triethylamine and n-hexane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Experimental data at 298.15Â K and ambient pressure of excess molar volumes VmE and excess molar enthalpies HmE are reported for two ternary and corresponding binary mixtures of an alkanol (ethanol or 1-butanol), triethylamine (TEA) and n-hexane. A vibrating-tube densitometer was used to determine VmE. HmE was measured using a quasi-isothermal flow calorimeter. The experimental results are used to test the applicability of the ERAS model for describing both thermodynamic excess properties of ternary mixtures containing an alkanol, a tertiary amine and a n-alkane. Qualitative agreement of calculated values with experimental results was achieved using only system-specific parameters determined from binary mixtures. The results are explained in terms of the self-association between alkanol molecules and cross-association between the alkanol and the tertiary amine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 237, Issues 1â2, 25 October 2005, Pages 170-185
Journal: Fluid Phase Equilibria - Volume 237, Issues 1â2, 25 October 2005, Pages 170-185
نویسندگان
Matthias Kwaterski, Elena N. Rezanova, Rüdiger N. Lichtenthaler,