ABSTRACT

Densities and viscosities of glycine, L-alanine, L-valine, L-threonine and L-arginine in aqueous solutions of (0.0, 0.1, 0.2, 0.3 and 0.4) mol kg 1 L-ascorbic acid have been measured at T = (293.15, 303.15, 313.15 and 323.15) K under atmospheric pressure. The apparent molar volumes (Vu), limiting partial molar volumes (V0 u), limiting partial molar volumes of transfer (DtrV0 u) and limiting partial molar expansibilities (E0 2) were computed by densities. The extended Jones Dole equation was used to correlate the viscosities in order to obtain viscosity B-coefficients and the free energies of activation per mole of solvent (Dl0 1 ) and solute (Dl0 2 ) were also calculated. The contributions of zwitterionic end group (NHp3 , COO ), CH2 group, OH group and CNHNHNH2 group to V0 u and viscosity B-coefficients were obtained through the group additivity analysis

Compounds

#	Formula	Name
1	C6H8O6	L-ascorbic acid
2	C2H5NO2	2-aminoacetic acid
3	C3H7NO2	(S)-2-aminopropanoic acid
4	C5H11NO2	L-valine
5	C4H9NO3	L-threonine
6	C6H14N4O2	L-arginine
7	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	7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	1 2 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	160
POMD	1 2 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	160
POMD	1 3 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	160
POMD	1 3 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	160
POMD	1 4 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	120
POMD	1 4 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	120
POMD	1 5 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	160
POMD	1 5 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	160
POMD	1 6 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	160
POMD	1 6 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	160
POMD	2 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	28
POMD	2 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	28
POMD	1 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	16
POMD	1 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	31
POMD	3 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	28
POMD	3 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	28
POMD	4 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	20
POMD	4 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	20
POMD	5 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	28
POMD	5 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	28
POMD	6 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	28
POMD	6 7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	28

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Volumetric and viscometric studies of amino acids in L-ascorbic acid aqueous solutions at T = (293.15 to 323.15) K

Jiang, X.[Xiaofeng], Zhu, C.[Chunying], Ma, Y.[Youguang]

ABSTRACT