ABSTRACT

The solubility of d-aspartic acid and l-aspartic acid in aqueous solutions of various molalities of sodium chloride and potassium chloride was measured by using a laser technique from (293 to 343) K at atmospheric pressure. Results showed that sodium chloride and potassium chloride have a salting-in effect on the solubility of d-aspartic acid and l-aspartic acid has the same phenomenon in sodium chloride solution. The solubility data were correlated by a semiempirical equation.

Compounds

#	Formula	Name
1	C4H7NO4	L-aminosuccinic acid
2	H2O	water
3	ClNa	sodium chloride
4	C4H7NO4	D-aspartic acid
5	ClK	potassium chloride

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 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 1	VISOBS	10
POMD	1 3 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid Solvent: Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 1	VISOBS	60
POMD	4 3 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid Solvent: Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 4	VISOBS	66
POMD	4 5 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid Solvent: Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 4	VISOBS	66
POMD	4 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 4	VISOBS	11

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

Solubility of d-Aspartic Acid and l-Aspartic Acid in Aqueous Salt Solutions from (293 to 343) K

Wang, J.[Jianhong], Wang, J.[Jidong], Liu, J.[Jisheng], Wang, S.[Shui], Pei, J.[Jie]

ABSTRACT