Lanthanum(III) nitrate

Lanthanum(III) nitrate is any inorganic compound with the chemical formula La(NO₃)₃·xH₂O. It is used in the extraction and purification of lanthanum from its ores.^[5]

Lanthanum(III) nitrate^[1][2][3]

Names
Other names Lanthanum trinitrate
Identifiers
CAS Number	10099-59-9 Y
3D model (JSmol)	Interactive image
ChemSpider	23467
ECHA InfoCard	100.030.203
EC Number	233-238-0
PubChem CID	24918
UNII	33A856C3T7 Y
CompTox Dashboard (EPA)	DTXSID90890639
InChI InChI=1S/La.3HNO3/c;3*2-1(3)4/h;3*(H,2,3,4)/q+3;;; Key: PAPXNISCLWTJQS-UHFFFAOYSA-N
SMILES [N+](=O)(O)[O-].[N+](=O)(O)[O-].[N+](=O)(O)[O-].[La+3]
Properties
Chemical formula	La(NO 3) 3
Molar mass	324.92 g/mol
Appearance	Colorless crystals
Odor	slight odor
Density	1.3 g/cm3
Melting point	40 °C (104 °F; 313 K)
Boiling point	126 °C (259 °F; 399 K)[dubious – discuss] decomposes
Solubility in water	158 g/100 mL
Solubility	Soluble in acetone and ethanol
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H272, H315, H319, H335
Precautionary statements	P210, P273, P280, P305+P351+P338+P310, P405, P501
NFPA 704 (fire diamond)	1 2 2
Lethal dose or concentration (LD, LC):
LD50 (median dose)	4500 mg/kg (oral, rat)[4]
Related compounds
Other anions	Lanthanum(III) sulfate
Other cations	Cerium(III) nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

The compound decomposes at 499°C to lanthanum oxide, nitric oxide and oxygen.^[3]

Preparation

Lanthanum nitrate is prepared by reacting lanthanum oxide with nitric acid which creates lanthanum(III) nitrate and water.

La₂O₃ + 6 HNO₃ → 2 La(NO₃)₃ + 3 H₂O

References

1. "Lanthanum(III) nitrate 99.999% trace metals". Sigma Aldrich. Retrieved 26 February 2021.
2. "lanthanum nitrate". ChemSpider. Retrieved 26 February 2021.
3. Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania (1996). "Influence of Pretreatment on Lanthanum Nitrate, Carbonate, and Oxide Powders". Chemistry of Materials. 8 (12). ACS publications: 2755–2768. doi:10.1021/cm9602555. Retrieved 26 February 2021.{{cite journal}}: CS1 maint: multiple names: authors list (link)
4. "Lanthanum(III) nitrate". PubChem. Retrieved 26 February 2021.
5. McGill, Ian (2000). "Rare Earth Elements". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a22_607. ISBN 978-3-527-30385-4.