ABSTRACT

The heat capacities of aqueous solutions of sodium aminoacetate (CAS no. 6000-44-8) and CO2-loaded aqueous sodium aminoacetate solutions were measured for a range of sodium aminoacetate mass fractions w = (0.01, 0.05, 0.10, 0.15, 0.20, and 0.30) and at a temperature range of T = (298.15 to 323.15) K. It was found that the heat capacity of the aqueous solution of sodium aminoacetate decreases as the concentration increases and increases with an increase in temperature. The heat capacity of CO2-loaded aqueous sodium aminoacetate solution was found to increase with temperature and decrease with an increase in CO2 loading. The heat capacities of the CO2-loaded aqueous sodium aminoacetate solution were lower than those of the unloaded solutions.

Compounds

#	Formula	Name
1	C2H4NNaO2	sodium glycinate
2	H2O	water
3	CO2	carbon dioxide

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	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	11
POMD	1 2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Mass fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	36
POMD	3 1 2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Solvent: Mass fraction - 1; Liquid Mole fraction - 3; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	252

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

Heat Capacity of Sodium Aminoacetate Solutions before and after CO2 Absorption

Harris, F.[Faisal], Kurnia, K. A.[Kiki Adi], Mutalib, M. I. A., Murugesan, T.[Thanabalan]

ABSTRACT