| Names | |
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| Other names thorium difluoride oxide, thorium fluoride oxide, thorium(IV) difluorideoxide | |
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| Properties | |
| Chemical formula | ThOF 2 |
| Molar mass | 286.034 g/mol |
| Appearance | white powder |
| Solubility in water | insoluble |
| Related compounds | |
| Related compounds | Lanthanum oxyfluoride |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Thorium oxyfluoride is an inorganic compound of thorium metal, fluorine, and oxygen with the chemical formula ThOF
2.
Synthesis
- Thorium oxyfluoride can be prepared from partial hydrolysis of thorium tetrafluoride in moist air at elevated temperatures, about 1000 °C.
- ThF4 + H2O → ThOF2 + 2 HF
- Reaction of thorium tetrafluoride with thorium dioxide at 600 °C:
- ThF4 + ThO2 → 2 ThOF2
Physical properties
The compound forms white, insoluble amorphous powder.
Uses
The compound is used as a protective coating on reflective surfaces.
References
- "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.
| Thorium compounds | |
|---|---|
| Th(II) | |
| Th(III) | |
| Th(IV) | |