L4000
Lanthanum(III) oxide
≥99.9%
Synonym(s):
Dilanthanum trioxide, Lanthana, Lanthanum sesquioxide, Lanthanum trioxide
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About This Item
Linear Formula:
La2O3
CAS Number:
Molecular Weight:
325.81
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
215-200-5
MDL number:
Quality Segment
assay
≥99.9%
form
powder
composition
La₂O₃
reaction suitability
reagent type: catalyst
core: lanthanum
density
6.51 g/mL at 25 °C (lit.)
application(s)
battery manufacturing
battery precursors
glass & ceramic
SMILES string
O=[La]O[La]=O
InChI
1S/2La.3O
InChI key
KTUFCUMIWABKDW-UHFFFAOYSA-N
General description
La2O3 is a wide band gap p-type semiconductor also called lanthanum sesquioxide. It is the only lanthanide oxide 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 improves the alkali resistance of the glass and because of its high refractive index and low dispersion, it is widely used in the preparation of camera and telescope lenses, infrared-absorbing glasses, and other special optical fibers. For example, it can be used as a starting material to prepare La2O3-CaO-B2O3-SiO2 glass for diagnosis X-ray shielding.
It can be used to prepare thermal-barrier coatings with a high thermal expansion coefficient and low thermal conductivity.
It can also be used as a recyclable catalytic system for the synthesis of diphenyl sulfides and selenides.
It can be used to prepare thermal-barrier coatings with a high thermal expansion coefficient and low thermal conductivity.
It can also be used as a recyclable catalytic system for the synthesis of diphenyl sulfides and selenides.
Precursor to LAMOX fast ion conductors and superconductors.
Features and Benefits
- High refractive index
- Thermal stability
- Hardness
- High dielectric constant
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Storage Class
13 - Non Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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