Abstract
We have measured the standard potential of the system Pu(III)/Pu(0).vs. a Ag/AgCl reference electrode in a LiCl‐KCl eutectic.The values of the standard potential are reported between 400 and 600°C and compared with the previous determinations carried out with U(III) and Np(III). The Nernst equation is also plotted at several temperatures.