کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
675729 1459628 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Excess enthalpies of binary mixtures of some propylamines + some propanols at 298.15 K
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Excess enthalpies of binary mixtures of some propylamines + some propanols at 298.15 K
چکیده انگلیسی

The molar excess enthalpies of 1,2- and 1,3-propanediamine + 1- or 2-propanol and 1,2- and 1,3-propanediol + 1- or 2-propaneamine have been determined at 298.15 K using a twin-microcalorimeter for a series of runs over the whole range of mole fractions. All excess enthalpies were large exothermic, in particular, the systems of amines + propanediols were more than −5 kJ mol−1 at the minimum. Primary or secondary alcohols and amines showed systematically different enthalpic behaviors. Equilibrium constant K1 expressed in terms of mole fractions and standard enthalpy of the formation of a 1:1 complex have been evaluated by ideal mixtures of momomeric molecules and their associated complexes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 450, Issues 1–2, 15 November 2006, Pages 91–95
نویسندگان
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