Thorium(IV) hydroxide
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| Names | |
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| IUPAC name
Thorium(IV) hydroxide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.034.097 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| Th(OH)4 | |
| Molar mass | 300.07 |
| Appearance | white solid[1] |
| Related compounds | |
Other anions |
thorium dioxide thorium nitrate |
Other cations |
cerium(IV) hydroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Thorium(IV) hydroxide is an inorganic compound with a chemical formula Th(OH)4.
Production
[edit]Thorium(IV) hydroxide can be produced by reacting alkali metal hydroxides like sodium hydroxide and potassium hydroxide and soluble thorium salts, such as thorium nitrate.[1][2][3]
Reactions
[edit]New thorium(IV) hydroxide is soluble in acid but its solubility will decrease when older.[1]
At above 470 °C, thorium(IV) hydroxide will continuously decompose and produce thorium dioxide:[3]
- Th(OH)4 → ThO2 + 2 H2O
Thorium(IV) hydroxide reacts with carbon dioxide gas. Under ambient conditions this produces the hydrated oxide carbonate ThOCO3·xH2O, and under higher pressure this produces thorium carbonate hemihydrate (Th(CO3)2·½H2O).[4][3][5]
References
[edit]- 1 2 3 《无机化合物制备手册》.朱文祥 主编.化学工业出版社. P143. 【III-251】氢氧化钍（thorium hydroxide）
- ↑ Gayer, K. H.; Leider, H. (1 Dec 1954). "The Solubility of Thorium Hydroxide in Solutions of Sodium Hydroxide and Perchloric Acid at 25°". Journal of the American Chemical Society. 76 (23): 5938–5940. doi:10.1021/ja01652a012.
- 1 2 3 Wickleder et al., pp. 70–7
- ↑ H. Ehrhardt, H. Seidel, H. Schweer (March 1980). "Hochdrucksynthesen einiger Carbonate mit überkritischem CO2". Zeitschrift für anorganische und allgemeine Chemie (in German). 462 (1): 185–198. doi:10.1002/zaac.19804620121. ISSN 0044-2313. Retrieved 2019-11-23.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ↑ Wickleder et al., pp. 101–115
Bibliography
[edit]- Wickleder, Mathias S.; Fourest, Blandine; Dorhout, Peter K. (2006). "Thorium". In Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (PDF). Vol. 3 (3rd ed.). Dordrecht, the Netherlands: Springer. pp. 52–160. doi:10.1007/1-4020-3598-5_3. ISBN 978-1-4020-3555-5. Archived from the original (PDF) on 2016-03-07.