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Technetium(IV) sulfide

Names
Other names Technetium disulphide
Identifiers
CAS Number	34312-50-0
3D model (JSmol)	Interactive image
InChI InChI=1S/2S.TcKey: YNVKFYSGICQOCU-UHFFFAOYSA-N
SMILES ..
Properties
Chemical formula	S2Tc
Molar mass	162 g·mol
Structure
Crystal structure	trigonal
Related compounds
Related compounds	Molybdenum disulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Technetium disulphide is a binary inorganic chemical compound of technetium metal and sulfur with the chemical formula TcS₂.

Synthesis

The compound can be prepared from the higher oxide:

2Tc₂O₇ + 15S → 4TcS₂ + 7SO₂

Also, the compound can be prepared by the reaction between both elements in a sealed tube at 450 °C, by the reaction between such components as Tc₂(O₂CCH₃)₅ and H₂S-gas in a flowing system at 450 °C, and by the reaction between K₂TcCl₆ and H₂S-gas in sulfuric acid.

Physical properties

Technetium disulfide is isomorphous with rhenium disulfide and has an MoS₂-type structure.

Technetium disulphide is reduced to the metal if heated to 1000 °C in a hydrogen atmosphere.

References

1. "WebElements Periodic Table » Technetium » technetium disulphide". webelements.com. Retrieved 22 July 2024.
2. German, Konstantin E.; Shiryaev, Andrey A.; Safonov, Alexey V.; Obruchnikova, Yana A.; Ilin, Viktor A.; Tregubova, Varvara E. (28 March 2015). "Technetium sulfide – formation kinetics, structure and particle speciation". Radiochimica Acta. 103 (3): 199–203. doi:10.1515/ract-2014-2369. ISSN 2193-3405. Retrieved 22 July 2024.
3. Pearce, Carolyn I.; Icenhower, Jonathan P.; Asmussen, R. Matthew; Tratnyek, Paul G.; Rosso, Kevin M.; Lukens, Wayne W.; Qafoku, Nikolla P. (21 June 2018). "Technetium Stabilization in Low-Solubility Sulfide Phases: A Review". ACS Earth and Space Chemistry. 2 (6): 532–547. Bibcode:2018ESC.....2..532P. doi:10.1021/acsearthspacechem.8b00015. ISSN 2472-3452. Retrieved 22 July 2024.
4. Suthersan, Suthan S.; Horst, John; Schnobrich, Matthew; Welty, Nicklaus; McDonough, Jeff (25 November 2016). Remediation Engineering: Design Concepts, Second Edition. CRC Press. p. 403. ISBN 978-1-4987-7336-2. Retrieved 22 July 2024.
5. "Реакция взаимодействия оксида технеция(VII) и серы" (in Russian). chemiday.com. Retrieved 22 July 2024.
6. Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 37-94. ISBN 978-0-412-30120-9. Retrieved 22 July 2024.
7. Ferrier, Maryline; Kerlin, William M.; Poineau, Frederic; Sattelberger, Alfred P.; Czerwinski, Kenneth R. (22 October 2013). "Recent developments in the synthetic chemistry of technetium disulfide". Dalton Transactions. 42 (44): 15540–15543. doi:10.1039/C3DT52079J. ISSN 1477-9234. PMID 24056388. Retrieved 22 July 2024.
8. Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 1968. p. 27. ISBN 978-0-08-057860-6. Retrieved 22 July 2024.

• Technetium compounds
• Sulfides