DETERMINATION OF PARTIAL MOLAR PROPERTIES AND ACOUSTIC PARAMETERS OF AMINO ACIDS IN AQUEOUS METHANOL SOLUTIONS IN PRESENCE OF SODIUM BENZOATE
Keywords:Amino-acids, Methanol, Ultrasonic velocity, Solvation number, Sodium benzoate
Objective: To study the partial molar properties and acoustic parameters of amino acids in the solutions of 5, 10 and 15 wt %of aqueous methanol in presence of sodium benzoate.
Methods: Effect on solute â€“solvent interaction is studied by determining the densities of pure solvents and the ultrasonic velocity of pure solvent and solutions is measured by using an ultrasonic interoferometer.
Results: The results are discussed in the light of molecular interaction, ion-solvent interactions ion-solvent interactions dominate over ion-ion interactions, Î²-alanine has higher ion-solvent interaction than Î±-alanine & glycine.
Conclusion: Overall,Î²-alanine shows high ion-solvent interaction due to higher mass which represents structural effect of solute on solvent in solution.
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