ABSTRACT

In this study, density, electrical conductivity, refractive index and viscosity of aqueous potassium and sodium salt solutions of a-aminobutyric acid were presented. Measurements were done over the temperature range (303.15 to 343.15) K and atmospheric pressure for salt compositions from x1 = 0.009 to 0.062. A modified Graber et al. equation was used to correlate the density, electrical conductivity, and refractive index with temperature and composition leading to average absolute deviations (AAD) between the predicted and calculated values of 0.04%, 0.7%, and 0.01%, respectively. The viscosity data were represented as a function of temperature and composition via Vogel Tamman Fulcher (VTF) type equation at an AAD of 0.6%.

Compounds

#	Formula	Name
1	C4H8NNaO2	sodium DL-.alpha.-aminobutyrate
2	C4H8KNO2	potassium 2-aminobutanoate
3	H2O	water

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	9
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	9
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	9
POMD	3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	63
POMD	3 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	63
POMD	3 2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Alternating current cell with electrodes	54
POMD	3 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	63
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	63
POMD	3 1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	63
POMD	3 1	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Alternating current cell with electrodes	54
POMD	3 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	63

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermophysical property characterization of aqueous amino acid salt solutions containing .alpha.-aminobutyric acid

Garcia, A. A.[Alexis A.], Leron, R. B.[Rhoda B.], Soriano, A. N.[Allan N.], Li, M. -H.[Meng-Hui]

ABSTRACT