Cinétique de l'interaction des complexes Cu(II)–oxine, Cu(II)–biuret et Cu(II)–acide salicylique avec l'EDTA

Abstract

The kinetics of the interaction of the complexes Cu(II)–biuret, Cu(II)–oxine, and Cu(II)–salicyclic acid with EDTA has been studied. The mechanism of the reaction involves a slow transfer of a proton followed by the rapid reaction of the protonated complex with EDTA. The rate constant contains contributions from the various forms of EDTA in solution as well as those from H2O and H3O+. However, the relative importance of the various terms varies from one system to another. [Journal translation]