ABSTRACT

The molar heat capacities of aqueous 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) solutions are reported at 11 different temperatures in the range (303.15 to 353.15) K. The percentage average absolute deviation (% AAD) of the measured molar heat capacities of MEA and MDEA is found to be 0.23 % when compared with the literature values. Molar excess heat capacities are calculated from the measurement results and correlated as a function of the mole fractions using the Redlich-Kister equation. The excess partial molar heat capacities are also reported.

Compounds

#	Formula	Name
1	C4H12N2O	N-(2-aminoethyl)ethanolamine
2	C3H9NO	3-amino-1-propanol
3	C3H9NO	2-(methylamino)ethanol
4	C3H9NO	1-amino-2-propanol
5	C4H11NO	2-(N,N-dimethylamino)ethanol
6	H2O	water
7	C2H7NO	2-aminoethan-1-ol
8	C5H13NO2	N-methyldiethanolamine

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	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	11
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	11
POMD	3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	11
POMD	4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	11
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	11
POMD	7	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	11
POMD	8	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	11
POMD	2 6	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	110
POMD	3 6	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	110
POMD	4 6	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	110
POMD	5 6	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	110
POMD	1 6	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	FLOW:UFactor:4	110

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

Molar Heat Capacity of Various Aqueous Alkanolamine Solutions from 303.15 K to 353.15 K

Mundhwa, M.[Mayur], Henni, A.[Amr]

ABSTRACT