S. P. Verevkin, B. Tong, U. Welz-Biermann
Dec 1, 2011
Citations
0
Influential Citations
9
Citations
Journal
Journal of Chemical & Engineering Data
Abstract
Vapor pressures of four alkanolamines (2-((2-aminoethyl)amino)-ethanol (CAS No. 111-41-1), 2-((2-(dimethyl- amino)ethyl)methylamino)-ethanol (CAS No. 2212-32-0), 2-(2-aminoethoxy)-ethanol (CAS No. 929-06-6), and 2-(2-dimethy- laminoethoxy)ethanol (CAS No. 1704-62-7)) have been measured by the transpiration method. Molar enthalpies of vaporization were obtained from the temperature dependence of the vapor pressure. Primary experimental data on temperature on vapor pressuresofalkanolamineshavebeencollectedfromtheliteratureandhavebeentreateduniformlytoderivevaporizationenthalpies at the reference temperature T = 298.15 K. An internal consistency check of the reported enthalpy of vaporization values has been performed. Low-volatile alkanolamines studied in this work have been considered as suitable candidates for use in mixtures with ionic liquids in industrial processes of CO2 and H2S capture.