Sodium technetate(V)

Sodium technetate(V)
Names
	IUPAC name Sodium technetate(V)
	Other names Sodium metatechnetate
Identifiers
CAS Number	12034-16-1 ;
3D model (JSmol)	Interactive image;
	SMILES [Na+].[O-][Tc](=O)=O;
Properties
Chemical formula	NaTcO3
Molar mass	168.8942 g/mol
Appearance	black solid
Melting point	800 °C (1,470 °F; 1,070 K) (decomposes)
Solubility in water	insoluble
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	toxic, radioactive
Related compounds
Other anions	Sodium pertechnetate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Sodium technetate(V) is an inorganic compound with the chemical formula NaTcO₃. It is a perovskite material and a rare example of an insoluble sodium salt.^[2]

Preparation

Sodium technetate(V) can be prepared by co-heating technetium, sodium pertechnetate and sodium oxide, and decomposition occurs at high temperature.^[3] In addition, Na₂⁹⁹MoO₄ decomposed in a NaOH solution will also produce NaTcO₃.^[4] The NaTcO₃ puckering effect resembles NaMoO₃ and the band between the ^e_g^π and a_1g state disappears.^[5]

Properties

NaTcO₃ is a black solid that is a member of the Na₂O–Tc₂O₅ system. It is stable to 800 °C (1,470 °F; 1,070 K).^[1]

References

^ ^a ^b ^c Keller, C.; Kanellakopulos, B. (1965-04-01). "Ternäre oxide des drei-bis siebenwertigen technetiums mit alkalien". Journal of Inorganic and Nuclear Chemistry (in German). 27 (4): 787–795. doi:10.1016/0022-1902(65)80438-9. ISSN 0022-1902.
^ Sabine Körbel, Miguel A. L. Marques, Silvana Botti (25 February 2016). "Stability and electronic properties of new inorganic perovskites from high-throughput ab initio calculations". Journal of Materials Chemistry C. 4 (15): 3157–3167. doi:10.1039/C5TC04172D. ISSN 2050-7526. Retrieved 3 May 2023.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ 无机化学丛书. 第九卷锰分族铁系铂系, pg. 122. 3.11 氧化数为V的锝和铼化合物.
^ M. Fis̆er, V. Brabec, O. Dragoun, A. Kovalík, J. Frána, M. Rys̆avý (1985). "Determination of 99mTc valent form in solids by measurement of internal conversion electrons". The International Journal of Applied Radiation and Isotopes. 36 (3): 219–222. doi:10.1016/0020-708X(85)90071-7. Archived from the original on 2018-07-02. Retrieved 3 May 2023.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ M. H. N. Assadi, Masashi Okubo, Atsuo Yamada, Yoshitaka Tateyama (8 February 2018). "Oxygen redox in hexagonal layered Na_xTMO₃ (TM = 4d elements) for high capacity Na ion batteries". Journal of Materials Chemistry A. 6 (8): 3747–3753. doi:10.1039/C7TA10826E. ISSN 2050-7488. Retrieved 3 May 2023.{{cite journal}}: CS1 maint: multiple names: authors list (link)

External reading

Keller, C.; Kanellakopulos, B. (April 1965). "Ternäre oxide des drei-bis siebenwertigen technetiums mit alkalien" [Ternary oxides of tri- to septivalent technetium and alkali metals]. Journal of Inorganic and Nuclear Chemistry. 27 (4): 787–795. doi:10.1016/0022-1902(65)80438-9.
Kanellakopulos, Basil. The ternary oxide of 3-to 7-valent technetium with alkalis. (1964), (AEC Accession No. 31424, Rept. No. KFK-197), pg. 73.

[no1-1] Keller, C.; Kanellakopulos, B. (1965-04-01). "Ternäre oxide des drei-bis siebenwertigen technetiums mit alkalien". Journal of Inorganic and Nuclear Chemistry (in German). 27 (4): 787–795. doi:10.1016/0022-1902(65)80438-9. ISSN 0022-1902.

[2] Sabine Körbel, Miguel A. L. Marques, Silvana Botti (25 February 2016). "Stability and electronic properties of new inorganic perovskites from high-throughput ab initio calculations". Journal of Materials Chemistry C. 4 (15): 3157–3167. doi:10.1039/C5TC04172D. ISSN 2050-7526. Retrieved 3 May 2023.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[3] 无机化学丛书. 第九卷锰分族铁系铂系, pg. 122. 3.11 氧化数为V的锝和铼化合物.

[4] M. Fis̆er, V. Brabec, O. Dragoun, A. Kovalík, J. Frána, M. Rys̆avý (1985). "Determination of 99mTc valent form in solids by measurement of internal conversion electrons". The International Journal of Applied Radiation and Isotopes. 36 (3): 219–222. doi:10.1016/0020-708X(85)90071-7. Archived from the original on 2018-07-02. Retrieved 3 May 2023.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[5] M. H. N. Assadi, Masashi Okubo, Atsuo Yamada, Yoshitaka Tateyama (8 February 2018). "Oxygen redox in hexagonal layered Na_xTMO₃ (TM = 4d elements) for high capacity Na ion batteries". Journal of Materials Chemistry A. 6 (8): 3747–3753. doi:10.1039/C7TA10826E. ISSN 2050-7488. Retrieved 3 May 2023.{{cite journal}}: CS1 maint: multiple names: authors list (link)

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