ABSTRACT

The article reports experimental values of density oqP, speed of sound ouP, viscosity ogP and refractive index onDP for the binary systems, (L-ascorbic acid + water) and (sodium ascorbate + water) over the concentration range (0.01 to 0.75) mol kg 1 at temperatures (T = 278.15, 288.15 and 298.15) K. From these experimental results, apparent molar volume V/ of solute, isentropic compressibility of solution ojSP, apparent molar isentropic compressibility j/ of solute and relative viscosity of solution ogrP have been calculated. The limiting apparent molar volume V0 / of solute, limiting apparent molar isentropic compressibility j0 / , limiting apparent molar expansivity E0 / of solute, coefficient of thermal expansion (a ) and hydration number (nH) of water soluble vitamins have been obtained. The experimental values of relative viscosity were used to calculate Falkenhagen coefficient A and Jones Dole coefficient B. The transition state theory has been used to calculate the Gibbs free energy of activation of viscous flow per mole of solvent (Dl0

Compounds

#	Formula	Name
1	C6H8O6	L-ascorbic acid
2	C6H7NaO6	sodium L-ascorbate
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	Pycnometric method	3
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Single path-length method	3
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	3
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	3
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	45
POMD	1 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Single path-length method	45
POMD	1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	45
POMD	1 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	45
POMD	2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	43
POMD	2 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Single path-length method	43
POMD	2 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	43
POMD	2 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	43

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

The study of molecular interactions of ascorbic acid and sodium ascorbate with water at temperatures (278.15, 288.15 and 298.15) K

Dhondge, S. S.[Sudhakar S.], Deshmukh, D. W.[Dinesh W.], Paliwal, L. J.[Lalitmohan J.], Dahasahasra, P. N.[Prachi N.]

ABSTRACT