ABSTRACT

Density (F) and speed of sound (u) values have been measured of L-leucine + 0.5 mol 3 L 1 aqueous K2SO4/KNO3 and L-isoleucine + 0.5 mol 3 L 1 aqueous K2SO4/KNO3 systems for several molal concentrations of L-leucine/L-isoleucine at different temperatures T = (298.15, 303.15, 308.15, 313.15, 318.15, and 323.15) K. Using the experimental values of F and u, the apparent molar volumes, partial molar volumes, transfer partial molar volumes, isentropic compressibilities, apparent molar isentropic compressibilities, partial molar isentropic compressibilities, and transfer partial molar isentropic compressibilities have been calculated. The measured and calculated thermodynamic parameters have been discussed in terms of zwitterion ion, zwitterion water dipole, ion ion, and ion water dipole interactions

Compounds

#	Formula	Name
1	C6H13NO2	L-leucine
2	H2O	water
3	K2O4S	potassium sulfate
4	KNO3	potassium nitrate
5	C6H13NO2	2-amino-3-methylpentanoic acid

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 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 3; Liquid	Liquid	Vibrating tube method	42
POMD	1 2 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 3; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	42
POMD	1 2 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 4; Liquid	Liquid	Vibrating tube method	42
POMD	1 2 4	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 4; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	42
POMD	5 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 3; Liquid	Liquid	Vibrating tube method	42
POMD	5 2 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 3; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	42
POMD	5 2 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 4; Liquid	Liquid	Vibrating tube method	42
POMD	5 2 4	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid Solvent: Molality, mol/kg - 4; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	42
POMD	2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Molality, mol/kg - 3; Liquid	Liquid	Vibrating tube method	6
POMD	2 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Molality, mol/kg - 3; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	6
POMD	2 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Molality, mol/kg - 4; Liquid	Liquid	Vibrating tube method	6
POMD	2 4	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Molality, mol/kg - 4; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	6

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Densities and Speeds of Sound in L-Leucine/L-Isoleucine + Aqueous K2SO4/KNO3 Systems at (298.15 to 323.15) K

Riyazuddeen, Gazal, U.[Umaima]

ABSTRACT