Thermodynamic studies of rare earth metal complexes with Rifampicin in mixed solvent system.

A. N. Sonar and N. S. Pawar

Abstract

The determination of stability constant of Rifampicin complexes with rare earths metal ions in temperature range 303-318 K at constant ionic strength 0.1M.in 50% dioxane-water mixture by adopting pH metric technique been studied. The thermodynamic parameters (DG,D
H and DS) were calculated from values of stability constant at different temperatures. The formations of metal complexes were found to be spontaneous and exothermic nature.