Uranium disulfide
In the Uranium disulfide world there are an infinite number of aspects to discover and explore. From its origins to its current evolution and development, Uranium disulfide has been the subject of interest and study by experts in various fields. Throughout history, Uranium disulfide has left an indelible mark on society, influencing the way we live, think and relate to our environment. In this article, we will delve into the exciting world of Uranium disulfide, exploring its different facets and discovering the importance it has in our daily lives.
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3D model (JSmol)
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| ECHA InfoCard | 100.031.700 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| US2 | |
| Molar mass | 302.160 g/mol |
| Appearance | Black crystals |
| Structure | |
| Tetragonal (α-US2) | |
| P4/ncc (No. 130) | |
a = 1029.3 pm, c = 637.4 pm
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
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Uranium disulfide is an inorganic chemical compound of uranium in oxidation state +4 and sulfur in oxidation state -2. It is radioactive and appears in the form of black crystals.
Uranium disulfide has two allotropic forms: α-uranium disulfide, which is stable above the transition temperature (about 1350 °C) and metastable below it, and β-uranium disulfide which is stable below this temperature. The tetragonal crystal structure of α-US2 is identical to α-USe2.
Uranium disulfide can be synthesized by reduction of gaseous hydrogen sulfide with uranium metal powder at elevated temperatures.
References
- ^ a b Noel, H.; Le Marouille, J.Y. (1984). "Crystal structure and properties of the uranium chalcogenides α-US2 and α-USe2". Journal of Solid State Chemistry. 52 (3). Elsevier BV: 197–202. doi:10.1016/0022-4596(84)90001-x. ISSN 0022-4596.
- ^ Kohlmann, H.; Beck, H. P. (2000) . "Uranium's valency in U3S5". Journal of Solid State Chemistry. 150 (2). Academic: 339. Bibcode:2000JSSCh.150..336K. doi:10.1006/jssc.1999.8599.
- ^ Picon, Marius; Flahaut, Jean (1953). "Dimorphism of the uranium disulfide, US2". Compt. Rend. 237: 808–810.
- ^ Assmann, Helmut; Stehle, Heinz (1981) . "Weitere Uranverbindungen als Kernbrennstoffe" [Other uranium compounds as nuclear fuels]. In Buschbeck, Karl-Christian; Keller, Cornelius (eds.). Handbuch der Anorganischen Chemie [Inorganic Chemistry Handbook]. Gmelin (in German). Vol. U: Uran (Suppl. A3) (8th ed.). Berlin: Springer. pp. 210–211. doi:10.1007/978-3-662-10275-6. ISBN 978-3-662-10276-3. LCCN 25-1383.
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