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Neptunium(IV) nitrate

From Wikipedia, the free encyclopedia

Neptunium(IV) nitrate
Names
Other names
Neptunium tetranitrate
Identifiers
3D model (JSmol)
ECHA InfoCard100.043.033Edit this at Wikidata
EC Number
  • 247-352-3
  • InChI=1S/4NO3.Np/c4*2-1(3)4;/q4*-1;+4
    Key: SSHOWSNFBYZAEF-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Np+4]
Properties
Np(NO3)4
Molar mass485.02
AppearanceGrey crystals
Soluble
Hazards
GHS labelling:
Warning
Related compounds
Related compounds
Plutonium(IV) nitrate
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Neptunium(IV) nitrate is aninorganic compound, a salt ofneptunium andnitric 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

[edit]

Addition of dilute nitric acid to freshly prepared neptunium(IV) hydroxide:[6][7]

Np(OH)4 + 4 HNO3 → Np(NO3)4 + 4 H2O

Physical properties

[edit]

Neptunium(IV) nitrate forms grayhygroscopic crystals.

It is soluble in water.

It forms a crystal hydrate of the composition Np(NO3)4•2H2O.

References

[edit]
  1. ^Horner, D. E. (1961).Plutonium Extraction from Nitrate and Sulfate Solutions by Amines and Organophosphorus Compounds.Oak Ridge National Laboratory. p. 17. Retrieved17 August 2021.
  2. ^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. Retrieved17 August 2021.
  3. ^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"(PDF). Retrieved17 August 2021.
  4. ^Alian, A.; Haggag, A. (1 May 1967)."Amine extraction and determination of activity coefficients of neptunium and plutonium nitrates".Journal of Inorganic and Nuclear Chemistry.29 (5):1355–1363.doi:10.1016/0022-1902(67)80378-6.ISSN 0022-1902. Retrieved17 August 2021.
  5. ^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".Radiochimica Acta.76 (1–2):45–54.doi:10.1524/ract.1997.76.12.45.ISSN 2193-3405.S2CID 99652660. Retrieved18 August 2021.
  6. ^Seaborg, Glenn Theodore (1949).The Transuranium Elements: Research Papers.McGraw-Hill. p. 1102.ISBN 9780598917584. Retrieved17 August 2021.{{cite book}}:ISBN / Date incompatibility (help)
  7. ^Laidler, J. B. (1 January 1966)."Neptunium nitrates".Journal of the Chemical Society A: Inorganic, Physical, Theoretical:780–784.doi:10.1039/J19660000780.ISSN 0022-4944. Retrieved18 August 2021.
Np(II)
  • [K(2.2.2-crypt)][NpCp'3]
Np(III)
Np(III,IV)
Np(IV)
Organoneptunium(IV) compounds
Np(V)
Neptunyl(V) compounds
Organoneptunium(V) compounds
Np(V,VI)
Neptunyl(V,VI) compounds
Np(VI)
Neptunyl(VI) compounds
Np(VII)
Salts and covalent derivatives of thenitrate ion
HNO3He
LiNO3Be(NO3)2B(NO3)−4RONO2
+CO3
+C2O4		NO3−
NH4NO3		HOONO2FNO3
+F		Ne
NaNO3Mg(NO3)2Al(NO3)3
Al(NO3)−4		SiP+SO4ClONO2
+Cl		Ar
KNO3Ca(NO3)2Sc(NO3)3Ti(NO3)4VO(NO3)3Cr(NO3)3Mn(NO3)2Fe(NO3)2
Fe(NO3)3		Co(NO3)2
Co(NO3)3		Ni(NO3)2CuNO3
Cu(NO3)2		Zn(NO3)2Ga(NO3)3GeAs+SeO3BrNO3
+Br		Kr
RbNO3Sr(NO3)2Y(NO3)3Zr(NO3)4NbO(NO3)3MoO2(NO3)2TcRu(NO3)3Rh(NO3)3Pd(NO3)2AgNO3Cd(NO3)2In(NO3)3Sn(NO3)4Sb4O4(OH)2(NO3)2TeINO3
+IO3		Xe(NO3)2
CsNO3Ba(NO3)2*Lu(NO3)3Hf(NO3)4TaO(NO3)3WO2(NO3)2ReO3NO3OsIr3O(NO3)10Pt(NO3)2
Pt(NO3)4		Au(NO3)−4Hg2(NO3)2
Hg(NO3)2		TlNO3
Tl(NO3)3		Pb(NO3)2Bi(NO3)3
BiO(NO3)		Po(NO3)4AtRn
FrNO3Ra(NO3)2**LrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
 
*La(NO3)3Ce(NO3)3
Ce(NO3)4		Pr(NO3)3Nd(NO3)3Pm(NO3)3Sm(NO3)3Eu(NO3)3Gd(NO3)3Tb(NO3)3Dy(NO3)3Ho(NO3)3Er(NO3)3Tm(NO3)3Yb(NO3)3
**Ac(NO3)3Th(NO3)4PaO(NO3)3U(NO3)4
UO2(NO3)2		Np(NO3)4
NpO(NO3)3
NpO2NO3
NpO2(NO3)2		Pu(NO3)3
Pu(NO3)4
PuO2(NO3)2		Am(NO3)3
AmO2(NO3)2		Cm(NO3)3Bk(NO3)3Cf(NO3)3Es(NO3)3FmMdNo
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