Pertechnetic acid
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| IUPAC name
Pertechnetic acid
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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| Properties | |
| HO4Tc | |
| Molar mass | 163 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Pertechnetic acid (HTcO4) is a compound of technetium that is produced by reacting technetium(VII) oxide (Tc2O7) with water or oxidizing acids, such as nitric acid, concentrated sulfuric acid, aqua regia, or a mixture of nitric and hydrochloric acids.[1] The resulting dark red, hygroscopic (water attracting) substance is a strong acid and easily donates protons.[2] In the concentrated sulfuric acid Tc(VII)tetraoxidotechnetate (pertechnetate) anion is unstable and undergo conversion to octahedral form of technetic(VII) acid TcO3(OH)(H2O)2.[3]
References
- ^ Schwochau 2000, p. 127
- ^ Schwochau, K. (2000). Technetium: chemistry and radiopharmaceutical applications. Wiley-VCH. ISBN 3-527-29496-1.
- ^ Poineau F, Weck PF, German K, Maruk A, Kirakosyan G, Lukens W, Rego DB, Sattelberger AP, Czerwinski KR (2010). "Speciation of heptavalent technetium in sulfuric acid: structural and spectroscopic studies" (PDF). Dalton Transactions. 39 (37): 8616–8619. doi:10.1039/C0DT00695E. PMID 20730190.
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