ABSTRACT

The apparent molar volume oVpoundsP and isentropic compression oKpoundssP of glycine, L-alanine and L-valine have been studied in (0.025, 0.05, 0.075 and 0.1) mol kg 1 aqueous 1-butyl-4-methyl pyridinium iodide [C4mpy]I solutions over a range of temperatures (288.15, 293.15, 298.15, 303.15 and 308.15) K from the values of densities (q) and ultrasonic speeds (u) respectively. The limiting apparent molar volumes oV0 pounds P, and limiting apparent molar isentropic compressions oK0 pounds;s P are obtained and have been interpreted in terms of solute-solvent and solute-solute interactions. The corresponding transfer quantities (DV0 pounds and DK0 pounds;s) from water to aqueous solutions of [C4mpy]I have been interpreted by cosphere overlap model. Volumetric and acoustic parameters are used to understand mixing effects and other complex biological processes between head and side chain groups of amino acids and ionic liquid in aqueous solution. The decrease in hydration number with increase in temperature indicates the reduction in electrostriction.

Compounds

#	Formula	Name
1	C2H5NO2	2-aminoacetic acid
2	C3H7NO2	(S)-2-aminopropanoic acid
3	C5H11NO2	L-valine
4	C10H16IN	1-butyl-4-methylpyridinium iodide
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 4 5	Mass density, kg/m3 ; Liquid	Solvent: Molality, mol/kg - 4; Liquid Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	140
POMD	1 4 5	Speed of sound, m/s ; Liquid	Solvent: Molality, mol/kg - 4; Liquid Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	140
POMD	2 4 5	Mass density, kg/m3 ; Liquid	Solvent: Molality, mol/kg - 4; Liquid Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	140
POMD	2 4 5	Speed of sound, m/s ; Liquid	Solvent: Molality, mol/kg - 4; Liquid Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	140
POMD	3 4 5	Mass density, kg/m3 ; Liquid	Solvent: Molality, mol/kg - 4; Liquid Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	140
POMD	3 4 5	Speed of sound, m/s ; Liquid	Solvent: Molality, mol/kg - 4; Liquid Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	140
POMD	4 5	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 4; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	20
POMD	4 5	Speed of sound, m/s ; Liquid	Molality, mol/kg - 4; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	20

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Effect of 1-butyl-4-methyl pyridinium iodide, [C4mpy]I, ionic liquid on hydration behaviour of aqueous solutions of alpfa-amino acids at different temperatures through volumetric and ultrasonic study

Sharma, S. K.[Suresh Kumar], Singh, G.[Gurpreet], Kumar, H.[Harsh], Kataria, R.[Ramesh]

ABSTRACT