Chemistry:Neptunium(IV) nitrate
From HandWiki
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| Other names
Neptunium tetranitrate
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3D model (JSmol)
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PubChem CID
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| Properties | |
| Np(NO3)4 | |
| Molar mass | 485.02 |
| Appearance | Grey crystals |
| Soluble | |
| Hazards | |
| GHS Signal word | Warning |
| Related compounds | |
Related compounds
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Plutonium(IV) nitrate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Neptunium(IV) nitrate is an inorganic compound, a salt of neptunium and nitric acid with the chemical formula Np(NO3)4.[1][2][3] The compound forms gray crystals, dissolves in water, and forms crystal hydrates.[4][5]
Synthesis
Addition of dilute nitric acid to freshly prepared neptunium(IV) hydroxide:[6][7]
- [math]\displaystyle{ \mathsf{ Np(OH)_4 + 4HNO_3 \ \xrightarrow{}\ Np(NO_3)_4 + 4H_2O } }[/math]
Physical properties
Neptunium(IV) nitrate forms gray hygroscopic crystals.
It is soluble in water.
It forms a crystal hydrate of the composition Np(NO3)4•2H2O.
References
- ↑ Horner, D. E. (1961) (in en). Plutonium Extraction from Nitrate and Sulfate Solutions by Amines and Organophosphorus Compounds. Oak Ridge National Laboratory. p. 17. https://books.google.com/books?id=7ESj8bTz_UQC&dq=Neptunium(IV)+nitrate&pg=PA17. Retrieved 17 August 2021.
- ↑ Ikeda-Ohno, Atsushi; Hennig, Christoph; Rossberg, André; Funke, Harald; Scheinost, Andreas C.; Bernhard, Gert; Yaita, Tsuyoshi (15 September 2008). "Electrochemical and Complexation Behavior of Neptunium in Aqueous Perchlorate and Nitrate Solutions". Inorganic Chemistry 47 (18): 8294–8305. doi:10.1021/ic8009095. ISSN 0020-1669. PMID 18698766. https://pubs.acs.org/doi/abs/10.1021/ic8009095. Retrieved 17 August 2021.
- ↑ Guillaume, B.; Moulin, J.P.; Maurice, Ch. (27-29 November 1984). "Chemical Properties of Neptunium Applied to Neptunium Management in Extraction Cycles of Purex Process.". https://inis.iaea.org/collection/NCLCollectionStore/_Public/16/080/16080207.pdf.
- ↑ Alian, A.; Haggag, A. (1 May 1967). "Amine extraction and determination of activity coefficients of neptunium and plutonium nitrates" (in en). Journal of Inorganic and Nuclear Chemistry 29 (5): 1355–1363. doi:10.1016/0022-1902(67)80378-6. ISSN 0022-1902. https://www.sciencedirect.com/science/article/abs/pii/0022190267803786. Retrieved 17 August 2021.
- ↑ Koltunov, V. S.; Taylor, R. J.; Savilova, O. A.; Zhuravleva, G. I.; Denniss, I. S.; Wallwork, A. L. (1 January 1997). "Kinetics and Mechanism of the Oxidation of Neptunium(IV) by Nitric Acid in Tributyl Phosphate Solution" (in en). Radiochimica Acta 76 (1–2): 45–54. doi:10.1524/ract.1997.76.12.45. ISSN 2193-3405. https://www.degruyter.com/document/doi/10.1524/ract.1997.76.12.45/html. Retrieved 18 August 2021.
- ↑ Seaborg, Glenn Theodore (1949) (in en). The Transuranium Elements: Research Papers. McGraw-Hill. p. 1102. ISBN 9780598917584. https://books.google.com/books?id=YEgNAQAAIAAJ&q=Neptunium(IV)+nitrate. Retrieved 17 August 2021.
- ↑ Laidler, J. B. (1 January 1966). "Neptunium nitrates" (in en). Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 780–784. doi:10.1039/J19660000780. ISSN 0022-4944. https://pubs.rsc.org/en/content/articlelanding/1966/J1/j19660000780. Retrieved 18 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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