skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Reductive Dissolution of PuO2(am): The Effect of Fe(II) and Hydroquinone

Journal Article · · Journal of Solution Chemistry, 31(6):433-453

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.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
15010024
Report Number(s):
PNNL-SA-35141; KP1301020
Journal Information:
Journal of Solution Chemistry, 31(6):433-453, Journal Name: Journal of Solution Chemistry, 31(6):433-453
Country of Publication:
United States
Language:
English

Similar Records

Heterogeneous Reduction of PuO2 with Fe(II): Importance of the Fe(III) Reaction Product
Journal Article · Sun May 01 00:00:00 EDT 2011 · Environmental Science & Technology, 45(9):3952-3958 · OSTI ID:15010024

Thermodynamic Model for the Solubility of PuO2(am) in the Aqueous Na+-H+-OH--Cl--H2O- ehtylenediaminetetraacetate System
Journal Article · Tue Apr 24 00:00:00 EDT 2001 · Radiochimica Acta, 89:67-74 · OSTI ID:15010024

Controls on Soluble Pu Concentrations in PuO2/Magnetite Suspensions
Journal Article · Tue Nov 06 00:00:00 EST 2012 · Environmental Science & Technology, 46(21):11610-11617 · OSTI ID:15010024