Polarogkaphy of uranyl-malate complexes at moderately low temperature

The polarographic behavior of uranyl ion at ther dropping mercury electrode was examined in malic acid solution at 15°. The limiting regions of complex formation, polymerization, and reversibility as functions of pH value and ligand concentration were studied. The dimerization of the complexes was demonstrated by the currentvoltage curves and conductometric measurements. Three kinds of complex species with metal-ligand ratio of 2:1, 2:2, and 2:3 were identified.