Chemistry:Uranyl bromide
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| UO 2Br 2 | |
| Molar mass | 429.835 g·mol−1 |
| Appearance | red solid |
| soluble | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Uranyl bromide is a salt of uranium, oxygen, and bromine with the chemical formula UO
2Br
2.[1][2]
Synthesis
Uranyl bromide can be obtained by passing bromine vapor over a heated mixture of UO
2 and charcoal. The formed compound is extracted with ether.[3]
Physical properties
The compound is highly soluble and hygroscopic, forming intensely red solutions in water.[4][5] Uranyl bromide is known to form complex compounds with oxygen-containing ligands[6] and can undergo reduction to a black powder upon heating in such solutions.
References
- ↑ Vajgel', F. (1985). "Uranium (6) dibromide-dioxide UO2Br2 (uranyl bromide)" (in Russian). Handbook of inorganic synthesis. V. 4. pp. 1312. https://inis.iaea.org/records/8s1bh-09z81#:~:text=Uranium%20(6)%20dibromide%2Ddioxide%20UO2Br2%20(uranyl%20bromide). Retrieved 2 October 2025.
- ↑ Rabinowitch, Eugene; Belford, R. Linn (22 October 2013) (in en). Spectroscopy and Photochemistry of Uranyl Compounds: International Series of Monographs on Nuclear Energy. Elsevier. p. 85. ISBN 978-1-4831-5675-0. https://books.google.com/books?id=T8L9BAAAQBAJ&dq=%22Uranyl+bromide%22&pg=PA366. Retrieved 2 October 2025.
- ↑ Hodge, Harold C.; Stannard, J. N.; Hursh, J. B. (29 June 2013) (in en). Uranium · Plutonium Transplutonic Elements. Springer Science & Business Media. p. 107. ISBN 978-3-642-65551-7. https://books.google.com/books?id=PnT1CAAAQBAJ&dq=%22Uranyl+bromide%22&pg=PA107.
- ↑ Peterson, Sigfred (1 April 1961). "Uranyl bromides obtained from aqueous solution". Journal of Inorganic and Nuclear Chemistry 17 (1): 135–137. doi:10.1016/0022-1902(61)80198-X. ISSN 0022-1902.
- ↑ Ahrland, S.; Bagnall, K. W.; Brown, D. (7 June 2016) (in en). The Chemistry of the Actinides: Comprehensive Inorganic Chemistry. Elsevier. p. 202. ISBN 978-1-4831-5934-8. https://books.google.com/books?id=awRPDAAAQBAJ&dq=%22Uranyl+bromide%22&pg=PA202. Retrieved 2 October 2025.
- ↑ Crawford, Margaret-Jane; Ellern, Arkady; Nöth, Heinrich; Suter, Max (2003). "Synthesis and Structure of UO2I2(OH2)2·4Et2O: First Structurally Characterized U(VI)−I Bond and Lightest Missing Member of the UO2X2(X = Halide) Series". Journal of the American Chemical Society 125 (39): 11778–11779. doi:10.1021/ja030260r. PMID 14505374.
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