کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10377746 | 880742 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Calculation the surface tension of heptane, eicosane, docosane, tetracosane, and their asymmetric mixtures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A method to calculate and predict the surface tension of n-alkanes including heptane, eicosane, docosane, tetracosane, and their asymmetric mixtures has been proposed. Reduced coordinates, Ïâ and Tâ, where Ïâ is the reduced surface tension and Tâ is the reduced temperature, are introduced for the prediction of surface tension. According to the phenomenological scaling and considering the law of corresponding states correlation, these reduced coordinates result in a single curve for the surface tension as a function of temperature. In the correlation the melting temperature, Tm, is applied as the corresponding temperature for these substances and their mixtures. The relationship between Ïâ and Tâ has a linear form and is expressed by Ïâ=a+bTâ, where a and b are temperature-independent constants. With this relationship the predicted values of surface tension of these substances and their mixtures are in good agreement with experimental ones. %AAD, percent average absolute deviation, for these four pure n-alkanes is 1.02% and for their four asymmetric mixtures is less than 0.70%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 289, Issue 1, 1 September 2005, Pages 218-222
Journal: Journal of Colloid and Interface Science - Volume 289, Issue 1, 1 September 2005, Pages 218-222
نویسندگان
Setareh Sheikh,