کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
216975 1426307 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Partition behaviour of benzoic acid in (water + n-dodecane) solutions at T = (293.15 and 298.15) K
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Partition behaviour of benzoic acid in (water + n-dodecane) solutions at T = (293.15 and 298.15) K
چکیده انگلیسی

The partition coefficients of benzoic acid in solutions of two immiscible solvents, water and n-dodecane, were measured at temperatures of (293.15 and 298.15) K. The experimental results indicated that at both temperatures the partition coefficients were not constant, but showed linear dependences on the concentration of benzoic acid in water. Dimerization of benzoic acid in n-dodecane and ionization in water were assumed based on the chemical theory and the experimental results verified this assumption quite well. Accordingly the association equilibrium constants of benzoic acid in n-dodecane were obtained by a linear regression. The regression results also showed that there was a very strong dimerization of benzoic acid in n-dodecane over the temperatures and concentration range investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 40, Issue 11, November 2008, Pages 1565–1568
نویسندگان
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