POTENTIOMETRIC, CONDUCTOMETRIC AND SPECTROPHOTOMETRIC STUDIES OF SOME METAL-ION COMPLEXES WITH REACTIVE DYES

The potentiometric, conductometric and IR spectra have been used to study the complexation of Cr(III), Ni(II), Pd(II), Pt(II), Zr(IV), UO22+, La(III), Ce(III), Sm(III), Th(IV) and Os(VIII) with reactive dyes. The stepwise and overall stability constants for complexes were determined potentiometrically. The ratio of the metal: ligand was determined conductometrically. On the other hand, the IR spectra are used to study the structure of metal-ligand complexes.