ABSTRACT

Experimental excess enthalpy, excess volume, and density data for the binary liquid mixtures pyridine + n-methyldiethanolamine (MDEA) and pyridine + monoethanolamine (MEA) are reported at atmospheric pressure and (15, 25, and 80) deg C. Experimental data are not currently available for these mixtures, and the reported values are particularly important for the ongoing development of group-contribution based thermodynamic models linked to the impact of specific molecular features on molecular interactions in mixtures and improving the parametrization of equation of state models. The experimental methods and procedures and data processing methods were validated using the heptane + toluene binary mixture, where it was possible to compare experimental and computational results obtained with literature values. Mixture liquid density, excess volume, and excess enthalpy data are also compared with values computed using the Peng Robinson equation of state.

Compounds

#	Formula	Name
1	C5H13NO2	N-methyldiethanolamine
2	C5H5N	pyridine
3	C7H8	toluene
4	C7H16	heptane
5	C2H7NO	2-aminoethan-1-ol

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	3
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	3	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	4	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	3
POMD	3 4	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Calvet calorimetry	168
POMD	3 4	Mass density, kg/m3 ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	17
POMD	2 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	42
POMD	2 5	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Calvet calorimetry	130
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	34
POMD	1 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Calvet calorimetry	315

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Excess Enthalpy and Excess Volume for Pyridine + Methyldiethanolamine and Pyridine + Ethanolamine Mixtures

Pourmohammadbagher, A.[Amin], Shaw, J. M.[John M.]

ABSTRACT