Chemistry:Uranyl oxalate
From HandWiki
| File:U Oxalate Trihydrate.tif | |
| Names | |
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| Other names
Uranyl oxalate trihydrate; uranyl oxalate hydrate
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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| Properties | |
| UO2C2O4 | |
| Molar mass | 358 g/mole (412 g/mol as trihydrate) |
| Appearance | Pale yellow powder |
| Partially soluble | |
| Related compounds | |
| Uranyl peroxide Triuranium octoxide Uranium dioxide | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Uranyl oxalate (UO2C2O4) is a pale yellow powdered uranyl salt. It is often encountered in industrial nuclear processes at both the front and back-end of the nuclear fuel cycle. Due to its hygroscopicity, uranyl oxalate rarely exists in the dehydrated state and is usually instead found in the trihydrate form (UO2C2O4·3H2O) at room temperature.[1] At room temperature, the powder exhibits a monoclinic crystal structure in the P21/c space group.[2]
Production
Uranyl oxalate trihydrate can be produced by the reaction of uranyl nitrate hexahydrate with oxalic acid.[3]
Uranyl oxalate has been used in actinometers.[4]
References
- ↑ Thompson, Nathan B. A.; Stennett, Martin C.; Gilbert, Matthew R.; Hyatt, Neil C. (2021-01-06). "Nuclear forensic signatures and structural analysis of uranyl oxalate, its products of thermal decomposition and Fe impurity dopant". Journal of Radioanalytical and Nuclear Chemistry 327 (2): 957–973. doi:10.1007/s10967-020-07538-2. ISSN 0236-5731.
- ↑ Jayadevan, N. C.; Chackraburtty, D. M. (1972-11-15). "The crystal and molecular structure of uranyl oxalate trihydrate". Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry 28 (11): 3178–3182. doi:10.1107/s0567740872007691. ISSN 0567-7408.
- ↑ Tel, H; Bülbül, M; Eral, M; Altaş, Y (November 1999). "Preparation and characterization of uranyl oxalate powders". Journal of Nuclear Materials 275 (2): 146–150. doi:10.1016/s0022-3115(99)00119-1. ISSN 0022-3115. Bibcode: 1999JNuM..275..146T. http://dx.doi.org/10.1016/s0022-3115(99)00119-1.
- ↑ Bryce-Smith, D. (1971) (in en). Photochemistry. Royal Society of Chemistry. p. 279. ISBN 978-0-85186-015-2. https://books.google.com/books?id=iy8xBTl-XjcC&pg=PA279.
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