SYNOPIS-Reducing agents commonly present in geologic environments can increase solubility of PuO2(am), which is otherwise very insoluble, by many orders of magnitude through reduction of Pu(IV) to Pu(III). The reduction reactions involving Fe(II) and hydroquinone, hitherto unquantified under environmental pH values, were found to be relatively fast and controlled the extent of PuO2(am) dissolution: a decrease in redox potential (pe + pH) resulted in concomitant increase in PuO2(am) solubility.
Revised: November 10, 2005 |
Published: June 1, 2002
Citation
Rai D., Y.A. Gorby, J.K. Fredrickson, D.A. Moore, and M. Yui. 2002.Reductive Dissolution of PuO2(am): The Effect of Fe(II) and Hydroquinone.Journal of Solution Chemistry 31, no. 6:433-453.PNNL-SA-35141.