کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5411000 | 1506569 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vapor-liquid equilibria of N,N,Nâ²,Nâ² tetramethylethylenediamine (TMEDA), tetramethylpropylenediamine (TMPDA) and their aqueous solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The vapor pressures of (N,N,Nâ²,Nâ² tetramethylethylenediamine (TMEDA)Â +Â water), (tetramethylpropylenediamine (TMPDA)Â +Â water) binary mixtures, and of pure N,N,Nâ²,Nâ² tetramethylethylenediamine and tetramethylpropylenediamine components were measured by means of a static device at temperatures between 273 and 363Â K. The data were correlated with the Antoine equation. From these data excess Gibbs functions (GE) were calculated for several constant temperatures and fitted to a three order Redlich-Kister equation using the Barker's method. The two binary systems show a positive azeotropic behavior. The TMEDA aqueous solution exhibits positive deviations in GE for all investigated temperatures over the whole composition. The (TMPDAÂ +Â water) system shows the same behavior except for TÂ =Â 273.15 and 283.15Â K where a sinusoidal shape is observed. Additionally, the NRTL and UNIQUAC models have been used for the correlation or prediction of the total pressure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 201, January 2015, Pages 83-89
Journal: Journal of Molecular Liquids - Volume 201, January 2015, Pages 83-89
نویسندگان
Zahida Bouzina, Amina Negadi, Fatiha Dergal, Ilham Mokbel, Jacques Jose, Latifa Negadi,