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Cerium(Ce) Oxide

Cerium Oxide, also known as cerium dioxide, Cerium(IV) Oxide or cerium dioxide, is an oxide of the rare-earth metal cerium. It is a pale yellow-white powder with the chemical formula CeO2. It is an important commercial product and an intermediate in the purification of the element from the ores. The distinctive property of this material is its reversible conversion to a non-stoichiometric oxide.

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 Cerium Oxide Properties

CAS No.: 1306-38-3,12014-56-1(Monohydrate)
Chemical formula CeO2
Molar mass 172.115 g/mol
Appearance white or pale yellow solid,slightly hygroscopic
Density 7.215 g/cm3
Melting point 2,400 °C (4,350 °F; 2,670 K)
Boiling point 3,500 °C (6,330 °F; 3,770 K)
Solubility in water insoluble


High Purity Cerium Oxide Specification
Particle Size(D50) 6.06 μm
Purity((CeO2) 99.998%
TREO(Total Rare Earth Oxides) 99.58%

RE Impurities Contents ppm Non-REEs Impurities ppm
La2O3 6 Fe2O3 3
Pr6O11 7 SiO2 35
Nd2O3 1 CaO 25
Sm2O3 1
Eu2O3 Nd
Gd2O3 Nd
Tb4O7 Nd
Dy2O3 Nd
Ho2O3 Nd
Er2O3 Nd
Tm2O3 Nd
Yb2O3 Nd
Lu2O3 Nd
Y2O3 Nd
【Packaging】25KG/bag Requirements:moisture proof,dust-free,dry,ventilate and clean.



What is Cerium Oxide used for?

Cerium Oxide is considered to be a lanthanide metal oxide and is used as an ultraviolet absorber, catalyst, polishing agent, gas sensors etc.  Cerium oxide-based materials have been used as photocatalyst for degradation of harmful compounds in water and air effluents with some attention also to photothermal catalytic reactions, for selective oxidation reactions, CO2 reduction, and water splitting.

For commercial purpose, cerium oxide nanoparticle/nanopowder plays a vital role in cosmetic products, consumer products, instruments and high technology. It has also been used prolifically in various engineering and biological applications, such as solid-oxide ...


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