Chemistry:Technetium pentafluoride
From HandWiki
| Names | |
|---|---|
| Other names
Technetium(V) fluoride
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| Identifiers | |
3D model (JSmol)
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| Properties | |
| F5Tc | |
| Molar mass | 193 g·mol−1 |
| Appearance | yellow crystals |
| Melting point | 50 °C (122 °F; 323 K) |
| reacts with water | |
| Structure | |
| orthorhombic | |
| Related compounds | |
Related compounds
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Rhenium pentafluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Technetium pentaluoride is a binary inorganic chemical compound of technetium metal and fluorine with the chemical formula TcF5.[1][2][3][4]
Synthesis
The compound can be synthesised by heating of technetium powder in a jet of fluorine diluted with nitrogen:
- 2Tc + 5F
2 → 2TcF
5
- 2Tc + 5F
Another way to prepare it is the effect of iodine on technetium hexafluoride solution in iodine pentafluoride:[5]
- 2TcF
6 + I
2 → 2TcF
5 + 2IF
- 2TcF
Physical properties
Technetium pentafluoride forms yellow crystals[6] of orthorhombic crystal system.[7] It reacts with water, and is volatile.
Chemical properties
The compound is hydrolyzed by water, disproportionating to more stable technetium compounds:
- 3TcF
5 + 8H
2O → HTcO
4 + 2TcO
2 + 15HF
- 3TcF
References
- ↑ "WebElements Periodic Table » Technetium » technetium pentafluoride". webelements.com. https://www.webelements.com/compounds/technetium/technetium_pentafluoride.html.
- ↑ Gutmann, Viktor (2 December 2012) (in en). Halogen Chemistry. Elsevier. p. 197. ISBN 978-0-323-14847-4. https://books.google.com/books?id=q0j8Imd8yQsC&dq=technetium+pentafluoride&pg=PA197. Retrieved 19 April 2023.
- ↑ Schwochau, Klaus (21 November 2008) (in en). Technetium: Chemistry and Radiopharmaceutical Applications. John Wiley & Sons. p. 113. ISBN 978-3-527-61337-3. https://books.google.com/books?id=g3QiV8Wr5ToC&dq=technetium+pentafluoride&pg=PA113. Retrieved 19 April 2023.
- ↑ "Some physical properties of technetium pentafluoride" (in en). Journal of Inorganic and Nuclear Chemistry 28: 231–232. 1 January 1976. doi:10.1016/0022-1902(76)80635-5. ISSN 0022-1902. https://www.sciencedirect.com/science/article/abs/pii/0022190276806355. Retrieved 19 April 2023.
- ↑ Schwochau, Klaus (21 November 2008) (in en). Technetium: Chemistry and Radiopharmaceutical Applications. John Wiley & Sons. p. 114. ISBN 978-3-527-61337-3. https://books.google.com/books?id=g3QiV8Wr5ToC&dq=technetium+pentafluoride+prepared&pg=PA114. Retrieved 19 April 2023.
- ↑ Lide, David R. (29 June 2004) (in en). CRC Handbook of Chemistry and Physics, 85th Edition. CRC Press. p. 4-88. ISBN 978-0-8493-0485-9. https://books.google.com/books?id=WDll8hA006AC&dq=technetium+pentafluoride+CRC&pg=SA4-PA88. Retrieved 19 April 2023.
- ↑ Kemmitt, R. D. W.; Peacock, R. D. (26 January 2016) (in en). The Chemistry of Manganese, Technetium and Rhenium: Pergamon Texts in Inorganic Chemistry. Elsevier. p. 889. ISBN 978-1-4831-8762-4. https://books.google.com/books?id=c0n-BAAAQBAJ&dq=technetium+pentafluoride&pg=PA889. Retrieved 19 April 2023.
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