French
DeutschTechnetium(VII) sulfide
 | |
| Names | |
|---|---|
| Other names Technetium heptasulphide, ditechnetium heptasulphide | |
| Identifiers | |
| Properties | |
| S7Tc2 | |
| Molar mass | 420 g·mol−1 |
| Appearance | dark brown crystals |
| insoluble | |
| Related compounds | |
Related compounds | Rhenium(VII) sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Technetium(VII) sulfide is a binary inorganic chemical compound of technetium metal and sulfur with the chemical formula Tc2S7.[1][2][3][4]
Synthesis
[edit]Passing hydrogen sulfide through acidic solutions of pertechnetates:[5][6][7]
- 2KTcO4 + 7H2S + 2HCl → Tc2S7↓ + 2KCl + 8H2O
- 2NH4TcO4 + 7H2S + 2HCl → Tc2S7↓ + 2NH4Cl + 8H2O
Chemical properties
[edit]It is restored by hydrogen at 1000 °C:
- Tc2S7 + 7H2 → 2Tc + 7H2S
References
[edit]- ^ Saiki, Y.; Fukuzaki, M.; Sekine, T.; Kino, Y.; Kudo, H. (2003). "[No title found]". Journal of Radioanalytical and Nuclear Chemistry. 255 (1): 101–104. doi:10.1023/A:1022283831945. Retrieved 23 July 2024.
- ^ Zolle, Ilse (28 January 2007). Technetium-99m Pharmaceuticals: Preparation and Quality Control in Nuclear Medicine. Springer Science & Business Media. p. 207. ISBN 978-3-540-33990-8. Retrieved 23 July 2024.
- ^ Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 1968. p. 72. ISBN 978-0-08-057860-6. Retrieved 23 July 2024.
- ^ Cohen, M. B.; Spolter, L.; Szymendera, J.; Radwan, M. (April 1972). "Rhenium and technetium heptasulfide". Journal of Nuclear Medicine. 13 (4): 287–288. ISSN 0161-5505. PMID 5011784. Retrieved 23 July 2024.
- ^ Boschke, Friedrich L. (31 December 1981). Inorganic Chemistry. Walter de Gruyter GmbH & Co KG. p. 131. ISBN 978-3-11-270829-3. Retrieved 23 July 2024.
- ^ "CharChem. Technetium(VII) sulfide". easychem.org. Retrieved 23 July 2024.
- ^ Poineau, Frederic; Burton-Pye, Benjamin P.; Sattelberger, Alfred P.; Czerwinski, Kenneth R.; German, Konstantin E.; Fattahi, Massoud (2018). "Speciation and reactivity of heptavalent technetium in strong acids". New Journal of Chemistry. 42 (10): 7522–7528. doi:10.1039/c7nj04912a. Retrieved 23 July 2024.