ABSTRACT

The densities, viscosities, and refractive indices of monoethanolamine p diethylenetriamine/aminoethylethanolamine binary liquid mixtures were measured at atmospheric pressure and temperatures of 298.15 K, 303.15 K and 308.15 K across the complete composition range. From the experimental data, several thermodynamic properties e including the excess volume, partial molar volume, partial molar volume at infinite dilution, excess Gibbs free energy of flow activation and excess refractive index e were calculated. Excess molar volume and excess refractive index data were correlated to the Redlich-Kister equation, and these properties were used to analyze molecular interactions in the binary mixtures. These volumetric properties were then predicted using the associating version of the PC-SAFT equation of state to test its applicability for amine systems, for which PC-SAFT showed promising results. Finally, viscosities were correlated using various models, including Arrhenius-like and McAllister.

Compounds

#	Formula	Name
1	C2H7NO	2-aminoethan-1-ol
2	C4H13N3	di(2-aminoethyl)amine
3	C4H12N2O	N-(2-aminoethyl)ethanolamine

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	6
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	6
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	3
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	3
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	3
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	3
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	3
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	3
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	33
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	33
POMD	1 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	33
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	33
POMD	1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	33
POMD	1 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	33

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Thermodynamic properties and CO2 solubility of monoethanolamine + diethylenetriamine/aminoethylethanolamine mixtures: Experimental measurements and thermodynamic modeling

Moosavi, M.[Mehrdad], Sisco, C. J.[Caleb J.], Rostami, A. A.[Abbas Ali], Vargas, F. M.[Francisco M.]

ABSTRACT