Polonium tetranitrate
From Wikipedia, the free encyclopedia
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| Other names
Polonium tetranitrate
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.060.234 Edit this at Wikidata |
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PubChem CID
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| Properties | |
| Po(NO3)4 | |
| Molar mass | 457.00 |
| Appearance | White crystalline solid |
| Soluble | |
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Related compounds
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Americium(III) nitrate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Polonium tetranitrate is an inorganic compound, a salt of polonium and nitric acid with the chemical formula Po(NO3)4.[1] The compound is radioactive, forms white crystals.[2] [3]
Synthesis
[edit ]Dissolution of metallic polonium in concentrated nitric acid:[citation needed ]
- {\displaystyle {\mathsf {Po+8HNO_{3}\ {\xrightarrow {}}\ Po(NO_{3})_{4}+4NO_{2}\uparrow +4H_{2}O}}}
Physical properties
[edit ]Polonium(IV) nitrate forms white[4] or colorless crystals.[5] It dissolves in water with hydrolysis.
Chemical properties
[edit ]It disproportionates in aqueous weakly acidic nitric acid solutions:
- {\displaystyle {\mathsf {2Po(NO_{3})_{4}+2H_{2}O\ \xrightarrow {} \ PoO_{2}(NO_{3})_{2}\downarrow +Po^{2+}+2NO_{3}^{-}+4HNO_{3}}}}
The polonium(II) ion (Po2+) is then oxidized by nitric acid to polonium(IV).
References
[edit ]- ^ Bagnall, K. W.; Robertson, D. S.; Stewart, M. a. A. (1 January 1958). "726. The polonium nitrates". Journal of the Chemical Society : 3633–3636. doi:10.1039/JR9580003633. ISSN 0368-1769.
- ^ Schmidt, M.; Siebert, W.; Bagnall, K. W. (22 October 2013). The Chemistry of Sulphur, Selenium, Tellurium and Polonium: Pergamon Texts in Inorganic Chemistry. Elsevier. p. 986. ISBN 978-1-4831-5865-5 . Retrieved 20 August 2021.
- ^ Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 1 January 1962. p. 220. ISBN 978-0-08-057853-8 . Retrieved 20 August 2021.
- ^ Schweitzer, George K.; Pesterfield, Lester L. (14 January 2010). The Aqueous Chemistry of the Elements. Oxford University Press. p. 243. ISBN 978-0-19-974219-6 . Retrieved 20 August 2021.
- ^ Inorganic Chemistry. PHI Learning Pvt. Ltd. 2012. p. 494. ISBN 978-81-203-4308-5 . Retrieved 20 August 2021.