Neptunium and Americium Speciation in Selected Basalt, Granite, Shale, and Tuff Ground Waters
- 15 July 1983
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 221 (4607) , 271-273
- https://doi.org/10.1126/science.221.4607.271
Abstract
Neptunium and americium are relatively insoluble in ground waters containing high sulfate concentrations, particularly at 90°C. The insoluble neptunium species is Np(IV); hence reducing waters should enhance its formation. Americium can exist only in the trivalent state under these conditions, and its solubility also should be representative of that of curium.Keywords
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