Effect of melt composition on the reaction of uranium dioxide with hydrogen chloride in molten alkali chlorides / Volkovich V.A., Polovov I.B., Vasin B.D., Griffiths T.R., Sharrad C.A., May I., Charnock J.M. // Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences. - 2007. - V. 62, l. 10-11. - P. 671-676.

ISSN:
09320784
Type:
Article
Abstract:
The reaction of uranium dioxide with excess hydrogen chloride in alkali chloride melts (LiCl, 3LiCl-2KCl, NaCl-KCl and NaCl-2CsCl) has been studied between 450 and 750°C, and the reaction products were characterized by electronic absorption and X-ray absorption spectroscopy. Uranium(V), [UO 2Cl4]3-, and uranium(IV), [UCl 6]2-, species were formed. They depended upon the temperature and the radius of the alkali cations present. Uranium(V) ions predominated in melts with small cations (LiCl and 3LiCl-2KCl). © 2007 Verlag der Zeitschrift für Naturforschung.
Author keywords:
Chloride melts; Hydrogen chloride; Spectroscopy; Uranium dioxide
Index keywords:
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DOI:
нет данных
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Affiliations Department of Rare Metals, Ural State Technical University, 620002 Ekaterinburg, Russian Federation; Redston Trevor Consulting Limited, Leeds, LS17 8RF, United Kingdom; Centre for Radiochemistry Research, University of Manchester, Manchester, M13 9PL, United Kingdom; CCLRC Daresbury Laboratory, Warrington, WA4 4AD, United Kingdom
Author Keywords Chloride melts; Hydrogen chloride; Spectroscopy; Uranium dioxide
References Volkovich, V.A., Bhatt, A.I., May, I., Griffiths, T.R., Thied, R.C., (2002) J. Nucl. Sci. Technol. Suppl, 3, p. 595; Volkovich, V.A., May, I., Charnock, J.M., Lewin, B., (2002) Phys. Chem. Chem. Phys, 4, p. 5753; Vasin, B.D., Maslov, S.V., Volkovich, V.A., Polovov, I.B., Kazakov, S.A., Rebrin, O.I., (2005) Proceedings of the 7th International Symposium on Molten Salts Chemistry and Technology, 1, p. 335. , 29 August-2 September, Toulouse, France; Volkovich, V.A., May, I., Charnock, J.M., (2004) Rasplavy, 2, p. 76; Smirnov, M.V., (1973) Electrode Potentials in Molten Chlorides, , Nauka, Moscow, in Russian; Kuznetsov, S.A., Hayashi, H., Minato, K., Gaune-Escard, M., (2005) J. Electrochem. Soc, 152, pp. C203; Nekrasova, N.P., Komarov, V.E., (1983) Radiokhimiya, 25, p. 233
Correspondence Address Volkovich, V.A.; Department of Rare Metals, Ural State Technical University, 620002 Ekaterinburg, Russian Federation; email: volkovich@dpt.ustu.ru
Language of Original Document English
Abbreviated Source Title Z. Naturforsch. Sect. A J. Phys. Sci.
Source Scopus