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199923

Sigma-Aldrich

Lanthanum(III) oxide

99.99% trace metals basis

Synonyme(s) :

Dilanthanum trioxide, Lanthanum oxide, Lanthanum trioxide, Lanthanum(3+) oxide

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About This Item

Formule linéaire :
La2O3
Numéro CAS:
1312-81-8
Poids moléculaire :
325.81
Numéro CE :
215-200-5
Numéro MDL:
MFCD00011071
Code UNSPSC :
12352303
ID de substance PubChem :
24851945
Nomenclature NACRES :
NA.23

Pureté

99.99% trace metals basis

Forme

powder

Pertinence de la réaction

reagent type: catalyst
core: lanthanum

Densité

6.51 g/mL at 25 °C (lit.)

Application(s)

battery manufacturing

Chaîne SMILES 

O=[La]O[La]=O

InChI

1S/2La.3O

Clé InChI

KTUFCUMIWABKDW-UHFFFAOYSA-N

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Description générale

La2O3 is a wide band gap p-type semiconductor with an empty Ln-4f shell and is widely used to prepare optical materials, dielectrics, and conductive ceramics. La2O3 can also be used as a catalyst in many organic transformations.

Application

Lanthanum(III) oxide can be used as a dopant to prepare radiation-shielding glasses. For example, it can be added to waste soda-lime glass to improve the linear attenuation coefficient and radiation shielding characteristics of the glass.

It can be used as a recyclable catalytic system for the synthesis of diphenyl sulfides and selenides and for the C-N cross-coupling of aryl halides with heteroaromatic amines.

It can also be used as a promoter or support material for the selective oxidation of methanol over gold catalyst.
Precursor to LAMOX fast ion conductors and superconductors.

Caractéristiques et avantages

  • High refractive index
  • Low dispersion
  • Colorless in the glass matrix
  • Efficient, inexpensive, and recyclable catalyst

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Certificats d'analyse (COA)

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Lili Liu et al.
Journal of nanoscience and nanotechnology, 11(3), 2155-2162 (2011-04-01)
La2O3-CeO2 nanopowders with different La2O3 (0-20 mol%) were prepared by the sol-gel method. The modification of the cubic structure of ceria by substituting La3+ for Ce4+ into the lattice of CeO2 has been investigated. The crystal structure of La2O3-CeO2 nanomaterials
Lukas C Gerber et al.
Chemical communications (Cambridge, England), 48(32), 3869-3871 (2012-03-14)
Lanthanum oxide nanoparticles were utilized to scavenge phosphate from microbial growth media for the use of targeted nutrient starvation as an antimicrobial strategy. Only in phosphate poor environments a toxic effect was observed. The effect was shown on Escherichia coli
A J Barón-González et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 23(49), 496003-496003 (2011-11-24)
The origin of dielectric anomalies and magnetodielectric response of La(2)MnCoO(6) has been investigated by means of ultra-high resolution synchrotron x-ray powder diffraction, neutron powder diffraction, resistivity, magnetization and dielectric measurements. The study has been performed on two different bulk samples
Amel Amirouche-Korichi et al.
Dental materials : official publication of the Academy of Dental Materials, 25(11), 1411-1418 (2009-08-18)
The degree of conversion (DC) and polymerization shrinkage of resin composites are closely related manifestations of the same process. Ideal dental composite would show an optimal degree of conversion and minimal polymerization shrinkage. These seem to be antagonistic goals, as
Yuhui Ma et al.
Nanotoxicology, 5(4), 743-753 (2011-01-26)
With the increasing applications of metal-based nanoparticles in various commercial products, it is necessary to address their environmental fate and potential toxicity. In this work, we assessed the phytotoxicity of lanthanum oxide (La₂O₃) NPs to cucumber plants and determined its
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