Effect of Melt Composition on the Reaction of Uranium Dioxide with Hydrogen Chloride in Molten Alkali Chlorides-Reference-Cited by-同舟云学术

Effect of Melt Composition on the Reaction of Uranium Dioxide with Hydrogen Chloride in Molten Alkali Chlorides

Published:2007-11-01 Issue:10-11 Volume:62 Page:671-676
ISSN:1865-7109
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Volkovich Vladimir A.¹,Polovov Ilya B.¹,Vasin Boris D.¹,Griffiths Trevor R.²,Sharrad Clint A.³,May Iain³,Charnock John M.⁴

Affiliation:

1. Department of Rare Metals, Ural State Technical University, 620002 Ekaterinburg, Russia

2. Redston Trevor Consulting Limited, Leeds, LS17 8RF, United Kingdom

3. Centre for Radiochemistry Research, The University of Manchester, Manchester, M13 9PL, United Kingdom

4. CCLRC Daresbury Laboratory, Warrington, WA4 4AD, United Kingdom

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), [UO2Cl4]3−, and uranium(IV), [UCl6]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).

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-2007-10-1116/pdf

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