The Pu(IV)-Acetate Chemical Equilibria: Intrication between Hydrolysis and Complexation
The complexation of plutonium(IV) by acetate anions as [Pu(AcO)<i><sub>n</sub></i>]<sup>4-<i>n</i></sup> species does not exist under the experimental conditions used in the literature and in our experiments. Using capillary electrophoresis (CE) coupled with ICP-MS, we discovered that in the Pu(IV)/acetate/water system, two distinct kinetics coexisted for which it was possible to determine the associated constants, namely, the equilibrium constants for the slow hydrolysis and the fast complexati