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Chem Commun (Camb). 2001 Sep 21;(18):1868-9. doi: 10.1039/b103468p.

Dissolution of uranium dioxide in supercritical fluid carbon dioxide.

Chemical communications (Cambridge, England)

M D Samsonov, C M Wai, S C Lee, Y Kulyako, N G Smart

Affiliations

  1. Department of Chmistry, University of Idaho, Moscow, Idaho 83844, USA.

PMID: 12240354 DOI: 10.1039/b103468p

Abstract

Uranium dioxide can be dissolved in supercritical CO2 with a CO2-philic TBP-HNO3 complexant to form a highly soluble UO2(NO3)(2).2TBP complex; this new method of dissolving UO2 that requires no water or organic solvent may have important applications for reprocessing of spent nuclear fuels and for treatment of nuclear wastes.

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