SPECTROPHOTOMETRIC ANALYSIS, THERMAL-ANALYSIS AND GRAVIMETRIC-DETERMINATION OF SOME METAL-IONS WITH OXIME AND SCHIFFS BASE DERIVATIVES OF N-FUROYLPHENYLHYDROXYLAMINE

The oxime and Schiff's base of N-furoylphenylhydroxylamine form comple xes with Co2+, Cu2+, Zn2+ and Fe3+. These complexes were studied by me ans of the UV-Vis. spectra of nujol mulls, electron spin resonance (ES R) spectra and magnetic susceptibility to determine their stereochemis try. The complexes were characterized via elemental analyses, molar co nductivities and thermogravimetric analyses. Organic reagents were use d for the gravimetric determination of Co2+, Cu2+ and Fe3+ through the precipitation of their complexes. The compounds were also used for se paration of a binary mixture of Cu2+ and Cu2+. Interferences were stud ied.