ABSTRACT

The solubilities of 3-aminobenzoic acid with different concentrations of ethanol cosolvent in supercritical carbon dioxide were measured by using flow-type equipment at pressures from 10.0 MPa to 21.0 MPa and temperature 308 K to 328 K. The effects on solubility of 3-aminobenzoic acid in SCCO2 with ethanol mole concentration of 1.0 % were investigated at temperatures of 308 K, 318 K, and 328 K; then, the study was also carried out with ethanol mole concentrations of 2.0 % and 4.0 % at 318 K, respectively. The experimental results revealed that the equilibrium solubility of 3-aminobenzoic acid was effectively increased in the presence of ethanol. The measured solubility data were correlated using the modified Sovova model, the modified Chrastil model, and the modified MST model, and the best agreement was obtained applying the modified Sovova model.

Compounds

#	Formula	Name
1	CO2	carbon dioxide
2	C7H7NO2	3-aminobenzoic acid
3	C2H6O	ethanol

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	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	3 2 1	Mole fraction - 2 ; Fluid (supercritical or subcritical phases)	Temperature, K; Fluid (supercritical or subcritical phases) Pressure, kPa; Fluid (supercritical or subcritical phases)	Solvent: Mole fraction - 3; Fluid (supercritical or subcritical phases)	Fluid (supercritical or subcritical phases) Crystal - 2	UV-Spectroscopy	15

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

Solubility of 3-Aminobenzoic Acid in Supercritical Carbon Dioxide Modified by Ethanol

Li, Y.[Ying], Ning, Y.[Yanying], Jin, J.[Junsu], Zhang, Z.[Zeting]

ABSTRACT