Electronic absorption spectral study of the oxidation of uranium dioxide in chloride melts / Volkovich VA,Griffiths TR,Fray DJ,Thied RC // PHYSICAL CHEMISTRY CHEMICAL PHYSICS. - 2000. - V. 2, l. 17. - P. 3871-3876.

ISSN/EISSN:

1463-9076 / нет данных

Type:

Article

Abstract:

The reaction of uranium dioxide with melts of alkali metal chlorides (LiCl, LiCl-KCl and NaCl-CsCl) under oxidising conditions was followed spectroscopically between 550 and 700 degrees C. The reaction proceeds via initial intermediate uranyl chloro species and finally results in the formation of sparingly soluble alkali metal uranates(vi). The addition of aluminium chloride to the melt changes the mechanism of the oxidation so that a soluble uranyl chloride complex is the final product. The electronic absorption spectra of solutions of alkali metal uranates in chloride melts have been recorded for the first time. Solutions of monouranates are stable with time, but diuranates tend to react with alkali chloride melts to form monouranate species.

Author keywords:

SOLUBILITIES; MIXTURES; UO2

DOI:

10.1039/b004464o

Web of Science ID:

ISI:000088879000021

Соавторы в МНС:

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Другие поля

Поле	Значение
Publisher	ROYAL SOC CHEMISTRY
Address	THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD,, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Language	English
Keywords-Plus	SOLUBILITIES; MIXTURES; UO2
Research-Areas	Chemistry; Physics
Web-of-Science-Categories	Chemistry, Physical; Physics, Atomic, Molecular \& Chemical
ResearcherID-Numbers	Volkovich, Vladimir/K-8339-2012
ORCID-Numbers	Volkovich, Vladimir/0000-0003-4438-1194
Number-of-Cited-References	24
Usage-Count-Since-2013	2
Journal-ISO	PCCP Phys. Chem. Chem. Phys.
Doc-Delivery-Number	346NY