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The Solubility of Actinides in the Near-Field

Published online by Cambridge University Press:  28 February 2011

F. T. Ewart ,
R. M. Howse ,
H. P. Thomason ,
S. J. Williams  and
J. E. Cross
F. T. Ewart
Affiliation:
Chemistry Division, Atomic Energy Research Establishment, Harwell, Oxford OX11 ORA, U.K.
R. M. Howse
Affiliation:
Chemistry Division, Atomic Energy Research Establishment, Harwell, Oxford OX11 ORA, U.K.
H. P. Thomason
Affiliation:
Chemistry Division, Atomic Energy Research Establishment, Harwell, Oxford OX11 ORA, U.K.
S. J. Williams
Affiliation:
Chemistry Division, Atomic Energy Research Establishment, Harwell, Oxford OX11 ORA, U.K.
J. E. Cross
Affiliation:
University of Wales Institute of Science and Technology, PO Box 13, Cardiff, CF1 3XF, Wales, U.K.
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Abstract

The solubility of some of the radiologically important actinide elements have been determined in a water whose chemistry was representative of that believed to exist in potential repositories in the U.K. The solubilities of the actinides have been determined as a function of the pH of the water. The results of these experiments have been compared with the results of predictions made using the PHREEQE geochemical modelling code in order to test and validate the data base used in the model. In the light of these comparisons, suggestions are made for alternative values for the thermodynamic data and for further studies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 50: Symposium STOCKHOLM – Scientific Basis for Nuclear Waste Management IX , 1985 , 701
Copyright
Copyright © Materials Research Society 1985

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