199923

Lanthanum(III) oxide

99.99% trace metals basis

• Synonym(s): Dilanthanum trioxide, Lanthana, Lanthanum oxide, Lanthanum sesquioxide, Lanthanum trioxide, Lanthanum⁽³⁺⁾ oxide
• Linear Formula: La₂O₃
• CAS Number: 1312-81-8
• Molecular Weight: 325.81
• EC Number: 215-200-5
• MDL number: MFCD00011071
• UNSPSC Code: 12352303
• PubChem Substance ID: 24851945
• NACRES: NA.23

Properties

• Quality Level: 100
• 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

Description

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

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves