Chemistry:Polonium tetranitrate
From HandWiki
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| Other names
Polonium tetranitrate
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3D model (JSmol)
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| Properties | |
| Po(NO3)4 | |
| Molar mass | 457.00 |
| Appearance | White crystalline solid |
| Soluble | |
| Hazards | |
| GHS Signal word | Warning |
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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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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
Dissolution of metallic polonium in concentrated nitric acid:[citation needed]
- [math]\displaystyle{ \mathsf{ Po + 8 HNO_3 \ \xrightarrow{}\ Po(NO_3)_4 + 4 NO_2\uparrow + 4 H_2O } }[/math]
Physical properties
Polonium(IV) nitrate forms white[4] or colorless crystals.[5] It dissolves in water with hydrolysis.
Chemical properties
It disproportionates in aqueous weakly acidic nitric acid solutions:
- [math]\displaystyle{ \mathsf{ 2 Po(NO_3)_4 + 2H_2O \ \xrightarrow{}\ PoO_2(NO_3)_2\downarrow + Po^{{2+}} + 2NO_3^- + 4HNO_3 } }[/math]
The polonium(II) ion (Po2+) is then oxidized by nitric acid to polonium(IV).
References
- ↑ Bagnall, K. W.; Robertson, D. S.; Stewart, M. a. A. (1 January 1958). "726. The polonium nitrates" (in en). Journal of the Chemical Society: 3633–3636. doi:10.1039/JR9580003633. ISSN 0368-1769.
- ↑ Schmidt, M.; Siebert, W.; Bagnall, K. W. (22 October 2013) (in en). The Chemistry of Sulphur, Selenium, Tellurium and Polonium: Pergamon Texts in Inorganic Chemistry. Elsevier. p. 986. ISBN 978-1-4831-5865-5. https://books.google.com/books?id=igJPDAAAQBAJ&q=Polonium+tetranitrate&pg=PA986. Retrieved 20 August 2021.
- ↑ (in en) Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 1 January 1962. p. 220. ISBN 978-0-08-057853-8. https://books.google.com/books?id=8qePsa3V8GQC&q=Polonium+tetranitrate&pg=PA220. Retrieved 20 August 2021.
- ↑ Schweitzer, George K.; Pesterfield, Lester L. (14 January 2010) (in en). The Aqueous Chemistry of the Elements. Oxford University Press. p. 243. ISBN 978-0-19-974219-6. https://books.google.com/books?id=-TNhhlGcCzwC&q=%22Po%28NO3%294%22+polonium&pg=PA243. Retrieved 20 August 2021.
- ↑ (in en) Inorganic Chemistry. PHI Learning Pvt. Ltd.. 2012. p. 494. ISBN 978-81-203-4308-5. https://books.google.com/books?id=8KAemlQzOj8C&q=%22Po%28NO3%294%22+polonium&pg=PA494. Retrieved 20 August 2021.
Salts and covalent derivatives of the nitrate ion
| HNO3 | He | ||||||||||||||||
| LiNO3 | Be(NO3)2 | B(NO3)−4 | C | NO−3, NH4NO3 |
O | FNO3 | Ne | ||||||||||
| NaNO3 | Mg(NO3)2 | Al(NO3)3 | Si | P | S | ClONO2 | Ar | ||||||||||
| KNO3 | Ca(NO3)2 | Sc(NO3)3 | Ti(NO3)4 | VO(NO3)3 | Cr(NO3)3 | Mn(NO3)2 | Fe(NO3)3, Fe(NO3)2 |
Co(NO3)2, Co(NO3)3 |
Ni(NO3)2 | Cu(NO3)2 | Zn(NO3)2 | Ga(NO3)3 | Ge | As | Se | Br | Kr |
| RbNO3 | Sr(NO3)2 | Y(NO3)3 | Zr(NO3)4 | Nb | Mo | Tc | Ru | Rh | Pd(NO3)2 | AgNO3 | Cd(NO3)2 | In | Sn | Sb(NO3)3 | Te | I | Xe(NO3)2 |
| CsNO3 | Ba(NO3)2 | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg2(NO3)2, Hg(NO3)2 |
Tl(NO3)3, TlNO3 |
Pb(NO3)2 | Bi(NO3)3 BiO(NO3) |
Po | At | Rn | |
| FrNO3 | Ra(NO3)2 | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |
| ↓ | |||||||||||||||||
| La(NO3)3 | Ce(NO3)3, Ce(NO3)4 |
Pr | Nd(NO3)3 | Pm | Sm | Eu(NO3)3 | Gd(NO3)3 | Tb(NO3)3 | Dy | Ho | Er | Tm | Yb | Lu | |||
| Ac(NO3)3 | Th(NO3)4 | Pa | UO2(NO3)2 | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | |||
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