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A Method for Determining the Oxidation State of Uranium at Concentration as Low AS 1010M

Published online by Cambridge University Press:  26 February 2011

M. Hussonnois ,
R. Guillaumont ,
L. Brillard  and
M. Fattahi
M. Hussonnois
Affiliation:
Groupe de Radiochimie, Institut de Physique Nucléaire, BP n° 1, F-91406 Orsay Cedex, France
R. Guillaumont
Affiliation:
Groupe de Radiochimie, Institut de Physique Nucléaire, BP n° 1, F-91406 Orsay Cedex, France
L. Brillard
Affiliation:
Groupe de Radiochimie, Institut de Physique Nucléaire, BP n° 1, F-91406 Orsay Cedex, France
M. Fattahi
Affiliation:
Groupe de Radiochimie, Institut de Physique Nucléaire, BP n° 1, F-91406 Orsay Cedex, France
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Abstract

This paper describes the development and testing of a chemical procedure for determining the tetravalent and hexava-lent states of uranium in aqueous media at concentration as low as 10−10M. Results show the U(IV) stability towards fast modifications of the pH of the solution with oxygen free hydrochloric acid. Some results on the oxidation kinetic of the uranium tetravalent state versus the HCl and uranium concentrations as well as the Fe(III) content are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 127: Symposium BERLIN – Scientific Basis for Nuclear Waste Management XII , 1988 , 979
Copyright
Copyright © Materials Research Society 1989

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References

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