MilliporeSigma
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199923

Sigma-Aldrich

Lanthanum(III) oxide

99.99% trace metals basis

Synonym(s):
Dilanthanum trioxide, Lanthanum oxide, Lanthanum trioxide, Lanthanum(3+) oxide
Linear Formula:
La2O3
CAS Number:
Molecular Weight:
325.81
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.99% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: lanthanum

density

6.51 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

O=[La]O[La]=O

InChI

1S/2La.3O

InChI key

KTUFCUMIWABKDW-UHFFFAOYSA-N

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This Item
L4000203556289205
Lanthanum(III) oxide 99.99% trace metals basis

Sigma-Aldrich

199923

Lanthanum(III) oxide

Lanthanum(III) oxide ≥99.9%

Sigma-Aldrich

L4000

Lanthanum(III) oxide

Lanthanum(III) oxide 99.999% trace metals basis

Sigma-Aldrich

203556

Lanthanum(III) oxide

Lanthanum(III) oxide suitable for AAS, ≥99.9%

Supelco

289205

Lanthanum(III) oxide

assay

99.99% trace metals basis

assay

≥99.9%

assay

99.999% trace metals basis

assay

≥99.9% trace metals basis

form

powder

form

powder

form

powder

form

powder

density

6.51 g/mL at 25 °C (lit.)

density

6.51 g/mL at 25 °C (lit.)

density

6.51 g/mL at 25 °C (lit.)

density

6.51 g/mL at 25 °C (lit.)

reaction suitability

reagent type: catalyst
core: lanthanum

reaction suitability

reagent type: catalyst
core: lanthanum

reaction suitability

reagent type: catalyst
core: lanthanum

reaction suitability

reagent type: catalyst
core: lanthanum

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

General description

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.

Features and Benefits

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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