Lutetium Oxide

Lutetium oxide is white powder, which is rare earth oxide. It is insoluble in water and aqueous alkali, but soluble in inorganic acid except HF salts and H3PO4 salts. Lu2O3 is stable at room temperature and pressure. It absorb carbon dioxide and moist in air to form subcarbonate.

Lutetium Oxide

CAS No.:12032-20-1 EINECS No.:234-764-3 Molecular Formula:Lu2O3 Molecular Weight:397.93
Density:9.41 Melting Point:2487℃ Boiling Point:3980℃ UN 3264 8/PG 3


Lutetium(III) oxide mainly uses as additive element for yttrium iron and yttrium aluminum garnet, which also acts as active material for fluorescent powder. It is raw material for making special alloys.

Lutetium trioxide is additive for magnetic material and fluorescent powder, which applies to activation analysis of neutron. It is sensitizer of cathode material.