French
DeutschThorium oxyfluoride
| Names | |
|---|---|
| Other names thorium difluoride oxide, thorium fluoride oxide, thorium(IV) difluorideoxide | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| EC Number |
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PubChem CID | |
CompTox Dashboard (EPA) | |
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| Properties | |
| ThOF 2 | |
| Molar mass | 286.034 g/mol |
| Appearance | white powder |
| insoluble | |
| Related compounds | |
Related compounds | Lanthanum oxyfluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Thorium oxyfluoride is an inorganic compound of thorium metal, fluorine, and oxygen with the chemical formula ThOF
2.[1][2][3]
Synthesis
[edit]- Thorium oxyfluoride can be prepared from partial hydrolysis of thorium tetrafluoride in moist air at elevated temperatures, about 1000 °C.[4][5]
- ThF4 + H2O → ThOF2 + 2 HF
- Reaction of thorium tetrafluoride with thorium dioxide at 600 °C:
- ThF4 + ThO2 → 2 ThOF2
Physical properties
[edit]The compound forms white, insoluble amorphous powder.[6]
Uses
[edit]The compound is used as a protective coating on reflective surfaces.[7]
References
[edit]- ^ "THORIUM OXYFLUORIDE". Alfa Chemistry. Archived from the original on 21 March 2023. Retrieved 21 March 2023.
- ^ Yemel'Yanov, V. S.; Yevstyukhin, A. I. (22 October 2013). The Metallurgy of Nuclear Fuel: Properties and Principles of the Technology of Uranium, Thorium and Plutonium. Elsevier. p. 369. ISBN 978-1-4831-8602-3. Retrieved 21 March 2023.
- ^ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 427. ISBN 978-1-4398-1462-8. Retrieved 21 March 2023.
- ^ Darnell, A. J. (1960). The Free Energy, Heat, and Entropy of Formation of Thorium Oxyfluoride. Atomics International. p. 1. Retrieved 21 March 2023.
- ^ Zachariasen, W. H. (1947). Fluorides of Uranium and Thorium with Lanthanum Fluoride Type of Structure. Atomic Energy Commission. p. 1153. Retrieved 21 March 2023.
- ^ Satya, Prakash (2013). Advanced Chemistry of Rare Elements. S. Chand Publishing. p. 436. ISBN 978-81-219-4254-6. Retrieved 21 March 2023.
- ^ Lewis, Robert A. (1 April 2016). Hawley's Condensed Chemical Dictionary. John Wiley & Sons. p. 1339. ISBN 978-1-119-26784-3. Retrieved 21 March 2023.