Cerium(IV) oxide, also known as ceric oxide, ceric dioxide, ceria, cerium oxide or cerium dioxide, is an oxide of the rare-earth metal cerium.
Molar mass：172.115 g/mol
Appearance：white or pale yellow solid,slightly hygroscopic
Melting point：2600 °C
Solubility in water：insoluble
Magnetic susceptibility (χ)：+26.0•10−6 cm3/mol
It's used in Optics, mixed conduction and biomedical areas.