Transport behavior of l-alanine, l-valine and l-leucine in ampicillin solutions over temperature range (305.15 to 315.15) K

Add time:08/13/2019    Source:sciencedirect.com

The viscosities, η of l-alanine, l-valine and l-leucine with drug ampicillin (AMP) have been measured as a function of temperature at T = (305.15, 310.15 and 315.15) K. The viscosity data have been utilized to determine viscosity B-coefficients employing the Jones–Dole equation. The trends of variation in viscosity values of amino acids with an increase in molal concentration of AMP solutions and also with an increase in temperature have been ascribed to the solute–solvent interactions operative in the solutions. The activation parameters of viscous flow have been obtained to throw light on the mechanism of viscous flow. These parameters have been discussed in the light of ion–ion and ion–solvent interactions.

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