Add time:08/15/2019         Source:sciencedirect.com

The viscosities, η of l-serine with drug ampicillin (AMP) and amoxicillin (AMX) have been measured as a function 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 acid with an increase in molal concentration of AMP and AMX 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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