Neodymium nitrate

Neodymium nitrate is an inorganic salt with the formula Nd(NO₃)₃·x(H₂O). It is typically encountered as the hexahydrate, Nd(NO₃)₃·6H₂O. It decomposes to NdONO₃ at elevated temperature.^[5]

Neodymium(III) nitrate

Names
Other names Neodymium trinitrate
Identifiers
CAS Number	10045-95-1 hexahydrate: 16454-60-7
3D model (JSmol)	Interactive image hexahydrate: Interactive image
ChemSpider	9155614
ECHA InfoCard	100.030.127
EC Number	233-153-9
PubChem CID	204494
CompTox Dashboard (EPA)	DTXSID30890638
InChI hexahydrate: InChI=1S/3NO3.Nd.6H2O/c3*2-1(3)4;;;;;;;/h;;;;6*1H2/q3*-1;+3;;;;;; Key: VQVDTKCSDUNYBO-UHFFFAOYSA-N
SMILES [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
Chemical formula	Nd(NO3)3 (anhydrous) Nd(NO3)3·6H2O (hexahydrate)
Molar mass	330.25 g⋅mol−1 (anhydrous) 438.34 g⋅mol−1 (hexahydrate)
Appearance	vibrant pink/violet solid
Density	6.5 g/cm3
Melting point	55 °C (131 °F; 328 K)[1] (hexahydrate, melts in water of crystallization)
Structure[2]
Crystal structure	triclinic
Space group	P1
Lattice constant	a = 9.307 Å, b = 11.747 Å, c = 6.776 Å α = 91.11°, β = 112.24°, γ = 109.15° Values are for [Nd(NO3)3(H2O)4]·2H2O.
Lattice volume (V)	639.0 Å3
Formula units (Z)	2
Hazards
GHS labelling:[3]
Pictograms
Signal word	Warning
Hazard statements	H272, H315, H319, H335
Precautionary statements	P210, P220, P221, P261, P264, P271, P280, P302+P352, P304+P340+P312, P305+P351+P338, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
NFPA 704 (fire diamond)	[4] 0 0 0 OX
Lethal dose or concentration (LD, LC):
LD50 (median dose)	2750 mg/kg (oral, rat)[4]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

It is used in the extraction and purification of neodymium from its ores.^[6]