ABSTRACT

The apparent molar volume, viscosity B-coefficient, molal refraction and adiabatic compressibility of glycine, L-alanine, and L-valine have been studied in 0.001, 0.003, 0.005 mol dm3 aqueous tetrabutylphosphonium tetrafluoroborate (Bu4PBF4) solutions at 298.15 K from the values of density,viscosity, refractive index and speed of sound respectively. The limiting apparent molar volumes, experimental slopes are obtained from the Masson equation and have been interpreted interms of solute.solvent and solute.solute interactions respectively. Jones-Dole equation were employedto analyze the viscosity data and the interpretation of the derived parameters A and B have also been carried out in terms of solute-solute and solute.solvent interactions in the solutions respectively. Molal refractions have been determined with the help of Lorentz-Lorenz equation. Limiting apparent molaradiabatic compressibilities of three amino acids at infinite dilution were evaluated and discussed.

Compounds

#	Formula	Name
1	C16H36BF4P	tetrabutylphosphonium tetrafluoroborate
2	C2H5NO2	2-aminoacetic acid
3	C3H7NO2	(S)-2-aminopropanoic acid
4	C5H11NO2	L-valine
5	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	1 5	Mass density, kg/m3 ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	3
POMD	1 5	Viscosity, Pa*s ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	3
POMD	1 5	Refractive index (other wavelength) ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	Digital Refractometer Mettler Toledo	3
POMD	1 5	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	3
POMD	2 1 5	Mass density, kg/m3 ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	18
POMD	2 1 5	Viscosity, Pa*s ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	18
POMD	2 1 5	Refractive index (other wavelength) ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	Digital Refractometer Mettler Toledo	18
POMD	2 1 5	Speed of sound, m/s ; Liquid	Solvent: Mole fraction - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	18
POMD	3 1 5	Mass density, kg/m3 ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	18
POMD	3 1 5	Viscosity, Pa*s ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	18
POMD	3 1 5	Refractive index (other wavelength) ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	Digital Refractometer Mettler Toledo	18
POMD	3 1 5	Speed of sound, m/s ; Liquid	Solvent: Mole fraction - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	18
POMD	4 1 5	Mass density, kg/m3 ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	18
POMD	4 1 5	Viscosity, Pa*s ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	18
POMD	4 1 5	Refractive index (other wavelength) ; Liquid	Solvent: Mass fraction - 1; Liquid Molality, mol/kg - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	Digital Refractometer Mettler Toledo	18
POMD	4 1 5	Speed of sound, m/s ; Liquid	Solvent: Mole fraction - 1; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	18

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Study of solvation consequences of alpha-amino acids in aqueous ionicliquid solution probed by physicochemical approach

Roy, M. N.[Mahendra Nath], De, P.[Pritam], Sikdar, P. S.[Partha Sarathi]

ABSTRACT