Excess enthalpies of binary mixtures of some propylamines + some propanols at 298.15 K |
| |
Authors: | T. Kimura T. Kitai T. Kamiyama M. Fujisawa |
| |
Affiliation: | aDepartment of Chemistry, Kinki University, Higashi-osaka 577-8502, Japan |
| |
Abstract: | 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. |
| |
Keywords: | Excess enthalpies 1,2- and 1,3-propanediamine 1,2- and 1,3-propanediol 1- and 2-propanol 1- and 2-propaneamine Ideal association treatment |
本文献已被 ScienceDirect 等数据库收录! |
|