Plutonium dioxide potential

Vapor pressures and vapor compositions in equilibrium with a hypostoichiometric plutonium dioxide condensed phase have been calculated for the temperature range 1500 I H 4000 K. Thermodynamic functions for the condensed phase and for each of the gaseous species were combined with an oxygen-potential model, which we extended from the solid into the liquid region to obtain the partial pressures of O2, 0, Pu, PuO and Pu02 as functions of temperature and of condensed phase composition. The calculated oxygen pressures increase rapidly as stoichiometry is approached. At least part of this increase is a consequence of the exclusion of Pu +... 

Table III. Ionization Potentials (IP) of the Molecules and Atoms In Equilibrium with a Plutonium Dioxide Condensed Phase (1 eV molecule- - - 23.06 kcal mol- =...

Plutonium also forms a similar series of cations. In this instance the redox potentials indicate that Pu + is the most stable ion. Hot bromate solutions are required to oxidise it to Pu02+, but reduction to the terpositive state is easier than with and Np + ions, being effected by sulphur dioxide, hydrazine or the iodide ion. In solution, the Pu + ion is not oxidised... 

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