Published September 1, 2005
| Version v1
Journal article
Structures of chloro-uranium species in molten LiCl-BeCl2 eutectic: A combined X-ray and electronic absorption spectroscopy study
- 1. Department of Rare Metals, Ural State Technical University - UPI, Ekaterinburg 620002 (Russian Federation)
- 2. Centre for Radiochemistry Research, Department of Chemistry, University of Manchester, Manchester, M13 9PL (United Kingdom)
- 3. Redston Trevor Consulting Ltd., Leeds, LS17 8RF (United Kingdom)
- 4. CCLRC Daresbury Laboratory, Warrington, WA4 4AD (United Kingdom)
- 5. Centre for Radiochemistry Research, Department of Chemistry, The University of Manchester, Manchester, M13 9PL (United Kingdom)
- 6. British Nuclear Fuels plc, Research and Technology, Sellafield, Cumbria, CA20 1PG (United Kingdom)
Description
The structures and interatomic distances of various chloro complexes of uranium in LiCl-BeCl2 eutectic melt at 380oC have been determined from EXAFS measurements. Dissolution of UCl4 and UO2Cl2 (in the absence of a chlorine atmosphere) generated UCl62- ions. Similarly, dissolution of UCl3 generated UCl63- complexes but dissolution of UO2Cl2 under a chlorine atmosphere yielded a mixture of UCl62- and UO2Cl42-, deduced from electronic absorption spectra measurements. Interatomic distances and uranium coordination are compared with earlier data in molten LiCl, both in melts and for quenched samples at room temperature
Additional details
Identifiers
- DOI
- 10.1016/j.jnucmat.2005.04.024;
- PII
- S0022-3115(05)00207-2;
Publishing Information
- Journal Title
- Journal of Nuclear Materials
- Journal Volume
- 344
- Journal Issue
- 1-3
- Journal Page Range
- p. 100-103
- ISSN
- 0022-3115
- CODEN
- JNUMAM
Conference
- Title
- 11. international symposium on thermodynamics of nuclear materials
- Acronym
- STNM-11
- Dates
- 6-9 Sep 2004
- Place
- Karlsruhe (Germany)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37010748
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; BERYLLIUM CHLORIDES; DISSOLUTION; EUTECTICS; FINE STRUCTURE; INTERATOMIC DISTANCES; LITHIUM CHLORIDES; MOLECULAR STRUCTURE; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; URANIUM CHLORIDES; URANIUM COMPLEXES; URANYL CHLORIDES; X RADIATION; X-RAY SPECTROSCOPY
- Descriptors DEC
- ACTINIDE COMPLEXES; ACTINIDE COMPOUNDS; ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; BERYLLIUM COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; COMPLEXES; DISTANCE; ELECTROMAGNETIC RADIATION; HALIDES; HALOGEN COMPOUNDS; IONIZING RADIATIONS; LITHIUM COMPOUNDS; LITHIUM HALIDES; RADIATIONS; SPECTRA; SPECTROSCOPY; TEMPERATURE RANGE; URANIUM COMPOUNDS; URANYL COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.