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The Behavior of Americium in Aqueous Carbonate Systems

Published online by Cambridge University Press:  25 February 2011

R. J. Silva
R. J. Silva*
Affiliation:
Lawrence Berkeley Laboratory Berkeley, California, USA
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Abstract

The solubilities of crystalline Am(OH)3 and AmOHCO3 were measured at 25° C in aqueous solutions of 0.1 M NaCl04 by determination of the solution concentrations of Am. Prior to use in the measurements, the solid materials were characterized by their x-ray powder diffraction patterns. The solubility product quotients were calculated from the experimental data. The hydrolysis quotients of Am3+ were also estimated from the hydroxide solubility data. Using the thermodynamic data derived from these experiments and the recently reported formation constants for the Am3+ carbonate complexes, the solid phases and concentrations of solution species of americium in several aqueous carbonate systems were calculated using the computer code MINEQL.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 26: Symposium D – Scientific Basis for Nuclear Waste Management VII , 1983 , 875
Copyright
Copyright © Materials Research Society 1984

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References

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