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Observation of Radiolytic Field Alteration of the Uranyl Cation in Bicarbonate Solution

Published online by Cambridge University Press:  26 February 2011

Lanee Snow ,
Bruce McNamara ,
Sergei Sinkov ,
Herman Cho  and
Judah Friese
Lanee Snow
Affiliation:
[email protected], Battelle, Richland, WA, 99352, United States
Bruce McNamara
Affiliation:
[email protected], Pacific Northwest Laboratory, Radiochemical Processing, Battelle, PO Box 999, MS:P7-25, Richland, Wa 99352, Richland, WA, 99352, United States, 509-376-1408
Sergei Sinkov
Affiliation:
[email protected], Battelle, Richland, WA, 99352, United States
Herman Cho
Affiliation:
[email protected], Battelle, Richland, WA, 99352, United States
Judah Friese
Affiliation:
[email protected], Battelle, Richland, WA, 99352, United States
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Abstract

Auto radiolysis of uranium (VI) carbonate solutions between pH 5.9 and 7.2 is shown to alter the uranium speciation over relatively short periods of time and was followed by 13C NMR and visible spectrophotometry, using dissolved [233(UO2)3(CO3)6]6- both as the radiolysis source (DÑ= 14.9 Gy/hr) and as a trap for the newly formed hydrogen peroxide. The speciation is different than the uranyl mixed peroxy carbonate species that have been reported for higher pH carbonate solutions.

Keywords

radiation effectsnuclear magnetic resonance (NMR)actinide
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 986: Symposium OO – Actinides 2006 – Basic Science, Applications and Technology , 2006 , 0986-OO08-04
Copyright
Copyright © Materials Research Society 2007

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