Polonium tetranitrate


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]

Polonium tetranitrate
Other names
Polonium tetranitrate
  • 66256-55-1
3D model (JSmol)
  • Interactive image
  • 23352125
ECHA InfoCard 100.060.234 Edit this at Wikidata
EC Number
  • 266-278-2
  • 23638965
  • InChI=1S/4NO3.Po/c4*2-1(3)4;/q4*-1;
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Po]
Molar mass 457.00
Appearance White crystalline solid
GHS labelling:
Related compounds
Related compounds
Americium(III) nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis Edit

Dissolution of metallic polonium in concentrated nitric acid:


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:


The polonium(II) ion (Po2+) is then oxidized by nitric acid to polonium(IV).

References Edit

  1. ^ 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.
  2. ^ 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.
  3. ^ Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 1 January 1962. p. 220. ISBN 978-0-08-057853-8. Retrieved 20 August 2021.
  4. ^ 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.
  5. ^ Inorganic Chemistry. PHI Learning Pvt. Ltd. 2012. p. 494. ISBN 978-81-203-4308-5. Retrieved 20 August 2021.