Ultrasonic Study of Some Amino Acids in Aqueous Salt Solution of Kno3 at 303.15K

Abstract

Apparent molar compressibilities (φ k) and apparent molar volume (φ v) of L-valine, L-leucine andL-phenylalanine in aqueous solution of KNO 3 at different concentrations have been determined at the temperature 303.15K using a standard ultrasonic frequency of 2 MHz. The above parameters can be evaluated from precise density, ultrasonic velocity and time flow measurements using a specific gravity bottle, ultrasonic single frequency interferometer and Ostwald type capillary viscometer respectively. With the help of these results various ultrasonic derived parameters such as limiting apparent molar compressibilities (φ k o), limiting apparent molar volumes (φ v o), and their constants (S k , S v), viscosity A & B-coefficients and the corresponding transfer parameters (Δφ k o , Δφ v o and ΔB), have been evaluated. The results have been interpreted in the light of intermolecular interactions between solute and solvent.