ABSTRACT

tThe speeds of sound and densities of different concentrations of l-tyrosine + l-glutamic acid + water ternary solutions, l-tyrosine + water and l-glutamic acid + water binary solutions at T = (298.15, 308.15, 318.15) K have been measured. Using the densities and the speeds of sound, the apparent molar volumes, the apparent molar isentropic compressibilities, the limiting apparent molar volume, the limiting apparent molar compressibility, the constants (SV,S, SV,K, SK,Sand SK,E) and the hydration number have been calculated. These parameters have been used to analyze the possible interionic interactions, such as ion ion, solute solvent, solvent solvent, ion solvent, and solute-co-solute interactions, and are discussed in terms of hydrophobic hydrophobic, and hydrophilic hydrophobic group interactions as well as, structure-making and structure-breaking effects in l-tyrosine + l-glutamic acid + water.

Compounds

#	Formula	Name
1	C5H9NO4	L-glutamic acid
2	C9H11NO3	3-(p-hydroxyphenyl)-L-alanine
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	2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	21
POMD	2 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	21
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	105
POMD	1 2 3	Speed of sound, m/s ; Liquid	Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	105
POMD	1 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	1 3	Speed of sound, m/s ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	15

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Volumetric and acoustic studies of l-tyrosine + l-glutamic acid + waterat different temperatures

Savaroglu, G.[Gokhan], Ildaser, A. C.[Aygun Ceren]

ABSTRACT