Lanthanum oxide is white orthorhombic system or amorphous powders. It is close to white powder of rhombohedral system or amorphous and hexagonal structure. Lanthanum trioxide absorb carbon dioxide and moist in air, which turn into lanthanum carbonate. It is hard to dissolve in water, but dissolve in dilute inorganic acids.
|CAS No.: 1312-81-8||EINECS No.: 215-200-5||Molecular Formula: La2O3||Molecular Weight:325.82|
|Melting Point:2315℃||Boiling Point:4200℃||Density:6.51||Flash Point:4200|
Lanthanum(III) oxide is mainly for production of special alloys, light-guide fibre, precision optical glass and high refraction optical fiber board, which is fit for camera, microlens, advanced optical instrument prism.
In ceramic industry, it use in producing ceramic capacitors, piezoelectric ceramic dopant and lanthanum oxybromide powder of X-ray luminescent materials.
Lanthanum trioxide doping in lithium oxide or zirconium oxide can apply to make ferrimagnetics. It can improve temperature dependence and dielectric properties of barium titanate, strontium titanate and other feroelectrics. It is also raw material for fiber optic device and optical glass.
La2O3 is raw material for lanthanum boride. It is also catalysts for many kinds of reaction.