Study on solubility of transuranium elements, III

Moriyama, Hirotake*

In suport of the safety assessment of geologic disposal of high level radioactivc wastes, the solubility of transuranium elements was studied. The ionic strength dependence of solubility of PuO $_{2}$ xH $_{2}$ O was measured under a reducing condition, and the solubility product K $^{0}_{sp}$ was obtained. The obtained K $^{0}_{sp}$ value was found to be much smaller than that predicted by Rai et al. from its dependence on ionic radius. Also, the systematic trends of complex formation constants of actinide ions were cxamined by using an improved hard sphere model. It was found that the systematic trends of the literature values for actinide ions other than An $^{4+}$ were well explained by the present model. The reliability of the literature values for An $^{4+}$ would be checked.

Language	:	Japanese
Report No.	:	JNC TJ8400 2001-015
Pages	:	48 Pages
Publication Year/Month	:	2001/03
Patent information	:
PDF	:	JNC-TJ8400-2001-015.pdf:1.05MB
Paper URL	:
Keywords	:	no keyword
Research Facility	:
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	京都大学
Other institute's report number	:

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Registration No. : GJ0820000058
JAEA Abstracts No. :

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