Mayur Mundhwa, A. Henni
Nov 1, 2007
Citations
1
Influential Citations
24
Citations
Journal
The Journal of Chemical Thermodynamics
Abstract
Abstract The molar excess enthalpies ( H m E ) for 2-{(2 aminoethyl)amino}ethanol (AEEA), 3-amino-1-propanol (AP), 2-(methylamino)ethanol (MAE), 1-amino-2-propanol (MIPA), and N-N-dimethylethanolamine (DMEA) in water are reported at three different T = (298.15, 313.15, and 323.15) K and over the entire range of mole fractions. The experimentally measured H m E values are correlated as a function of mole fractions using the Redlich–Kister (RK) equation. The molar enthalpies of alkanolamines and water at infinite dilutions are determined from the RK coefficients. The experimentally measured H m E values are modeled using the following solution theory models: NRTL (non-random two liquid), UNIQUAC (UNIversal QUAsi Chemical), and the modified UNIFAC (UNIversal Functional groups Activity Coefficient, (Dortmund)) model.