ABSTRACT

Physical solubility and diffusivity of N2O and CO2 in pure water and of N2O in aqueous sodium glycinate solutions of mass fraction (0.1 to 0.5) were measured at T ) (303.15 to 323.15) K. Since it was not possible to measure these properties for CO2 due to the chemical reaction between CO2 and the amine group of sodium glycinate, these were estimated using the well-known N2O analogy. While the physical solubility increases with a decrease in temperature and with a decrease in mass fraction, diffusivity decreases with a decrease in temperature as well as an increase in mass fraction except for concentrated solution (mass fraction 0.4 and 0.5) where it increases with a decrease in temperature.

Compounds

#	Formula	Name
1	N2O	nitrous oxide
2	CO2	carbon dioxide
3	H2O	water
4	C2H4NNaO2	sodium glycinate

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	3 1	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Gas	absorber, wetted wall	4
POMD	3 1	Henry's Law constant (amount concentration scale), kPa*dm3/mol - 1 ; Liquid	Temperature, K; Liquid	Amount concentration (molarity), mol/dm3 - 1; Liquid	Liquid Gas	Chromatography	3
POMD	2 3	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Gas	absorber, wetted wall	4
POMD	2 3	Henry's Law constant (amount concentration scale), kPa*dm3/mol - 2 ; Liquid	Temperature, K; Liquid	Amount concentration (molarity), mol/dm3 - 2; Liquid	Liquid Gas	Chromatography	3
POMD	4 3 1	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid Amount concentration (molarity), mol/dm3 - 4; Liquid	Pressure, kPa; Liquid	Liquid Gas	absorption, wetted wall	15
POMD	4 3 1	Henry's Law constant (amount concentration scale), kPa*dm3/mol - 4 ; Liquid	Temperature, K; Liquid Amount concentration (molarity), mol/dm3 - 4; Liquid	Amount concentration (molarity), mol/dm3 - 1; Liquid	Liquid Gas	Chromatography	15

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

Physical Solubility and Diffusivity of N2O and CO2 in Aqueous Sodium Glycinate Solutions

Lee, S.[Seungmoon], Song, H.-J.[Ho-Jun], Maken, S.[Sanjeev], Shin, H.-C.[Ho-Chul], Song, H.-C.[Ho-Cheol], Park, J.-W.[Jin-Won]

ABSTRACT