Protonation of alkanolamines and cyclic amines in water at temperatures from 293.15 to 373.15 K

被引：7

作者：

Ballerat-Busserolles, Karine ^{[1
,2
]}

Simond, Mickal R. ^{[1
,2
]}

Coulier, Yohann ^{[1
,2
]}

Coxam, Jean-Yves ^{[1
,2
]}

机构：

[1] Univ Blaise Pascal, Univ Clermont Ferrand 2, Inst Chim Clermont Ferrand, F-63000 Clermont Ferrand, France

[2] ICCF, UMR 6296, CNRS, F-63171 Aubiere, France

来源：

PURE AND APPLIED CHEMISTRY | 2014年 / 86卷 / 02期

关键词：

alkanolamines; amine protonation; enthalpy of protonation; morpholines; piperidines; protonation constant; pyridine; CARBON-DIOXIDE; DISSOCIATION-CONSTANTS; AQUEOUS-SOLUTIONS; ENTHALPY; METHYLDIETHANOLAMINE; PRESSURES; MPA; CO2;

D O I：

10.1515/pac-2014-5017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The protonation properties of amines are of particular interest for the development of thermodynamic models representative of CO2 dissolution in aqueous solutions. This paper reports experimental equilibrium constants of protonation of alkanolamines (2-aminoethanol, 2,2'-iminodiethanol, 2-[bis(2-hydroxyethyl)amino]ethanol,2-amino-2-methylpropan-1-ol, 2,2'-(methylimino)diethanol and cyclic amines (morpholine, 4-methylmorpholine, pyridine, 1-methyl-piperidine, 2-methyl-piperidine, 2,6-dimethylpiperidine). The equilibrium constants of protonation were determined by potentiometric technique up to 353.15 K and extrapolated up to 373.15 K using experimental enthalpies of protonation.

引用

页码：233 / 243

页数：11

共 13 条

[1] Measurement and Modeling of Enthalpy of Solution of Carbon Dioxide in Aqueous Solutions of Diethanolamine at Temperatures of (322.5 and 372.9) K and Pressures up to 3 MPa [J].