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Neodymium nitrate

From Wikipedia, the free encyclopedia
Inorganic chemical compound
Neodymium(III) nitrate
Names
Other names
Neodymium trinitrate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.030.127Edit this at Wikidata
EC Number
  • 233-153-9
  • hexahydrate: InChI=1S/3NO3.Nd.6H2O/c3*2-1(3)4;;;;;;;/h;;;;6*1H2/q3*-1;+3;;;;;;
    Key: VQVDTKCSDUNYBO-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Nd+3]
  • hexahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Nd+3]
Properties
Nd(NO3)3(H2O)x
Molar mass330.25 g/mol (anhydrous)
438.35 g/mol (hexahydrate)
Appearancevibrant pink/violet solid
Density6.5g/cm3
Melting point1,374 °C (2,505 °F; 1,647 K)
Structure
Tricapped trigonal prismatic
(nine-coordinate)
Hazards
GHS labelling:
GHS03: OxidizingGHS07: Exclamation mark
Warning
H272,H302,H312,H315,H319,H332,H335
P261,P264,P270,P271,P280,P301+P312,P302+P352,P304+P312,P304+P340,P305+P351+P338,P312,P321,P322,P330,P332+P313,P337+P313,P362,P363,P403+P233,P405,P501
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Neodymium nitrate is an inorganic salt with the formulaNd(NO3)3·(x(H2O) . It is typically encountered as thehexahydrate, Nd(NO3)3·6H2O, which is more accurately formulated as [Nd(NO3)3(H2O)4]·2H2O to reflect thecrystal structure. It crystallizes in the triclinic space groupP1 with the following cell parameters:a = 9.307(1)°,b = 11.747(1)°,c = 6.776(1)°,α = 91.11(1) Å,β = 112.24(1) Å,γ = 109.15(1) Å.[1] Itdecomposes to NdONO3 at elevatedtemperature.[2]

It is used in the extraction and purification of neodymium from its ores.[3]

References

[edit]
  1. ^Rogers, D. J.; Taylor, N. J.; Toogood, G. E. (1983)."Tetraaquatrinitratoneodymium(III) dihydrate, [Nd(NO3)3(H2O)4]·2H2O".Acta Crystallogr. C.39 (8):939–941.Bibcode:1983AcCrC..39..939R.doi:10.1107/S0108270183006927.
  2. ^Van Vuuren, C.P.J.; Strydom, C.A. (1986). "The thermal decomposition of neodymium nitrate".Thermochimica Acta.104:293–298.Bibcode:1986TcAc..104..293V.doi:10.1016/0040-6031(86)85204-2.ISSN 0040-6031.
  3. ^McGill, Ian (2000). "Rare Earth Elements".Ullmann's Encyclopedia of Industrial Chemistry.doi:10.1002/14356007.a22_607.ISBN 978-3-527-30385-4.
Nd(II)
Nd(III)
Nd(IV)
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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