کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
675393 | 1459597 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enthalpies of solution of DL-α-Alanyl-DL-α-Valine in aqueous solution of amides at 298.15 K
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The enthalpies of solution of DL-α-Alanyl-DL-α-Valine in aqueous solution of formamide, N-methylformamide, N,N-dimethylformamide, N,N-diethylformamide and N,N-dimethylacetamide were determined by calorimetry at 298.15 K over the concentration range x2 = 0-0.4 mole fractions. Standard enthalpies of solution ÎsolHm° and transfer ÎtrHm° from water to mixed solvents were computed. The enthalpy coefficients of pairwise DL-α-Alanyl-DL-α-Valine-amide interactions were calculated. The interrelation between the enthalpy characteristics of solution (transfer) of DL-α-Alanyl-DL-α-Valine and the structure and physicochemical characteristics of solvents, as well as the composition of mixtures were revealed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 485, Issues 1â2, 10 March 2009, Pages 72-75
Journal: Thermochimica Acta - Volume 485, Issues 1â2, 10 March 2009, Pages 72-75
نویسندگان
Valeriy I. Smirnov, Valentin G. Badelin,