Abstract

The potential behavior of uranium was studied in both oxidizing and nonoxidizing media. A low critical anodic current and a very high critical potential for passivity were observed. In the presence of oxygen especially interesting behavior was noted. Oxygen, while passivating the corroding electrode, was reduced to form hydrogen peroxide. At steady state the potential of the passive electrode was found to be slightly more active than that for the reversible oxygen‐peroxide couple. Under these conditions, changing the partial pressure of oxygen caused potential shifts in accordance with the Nernst equation.

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