Cerium Oxide



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Product Code Available Product Forms Request A Quote
CE-OX-02 (2N) 99% Cerium Oxide Request
CE-OX-03 (3N) 99.9% Cerium Oxide Request
CE-OX-04 (4N) 99.99% Cerium Oxide Request
CE-OX-05 (5N) 99.999% Cerium Oxide Request


Compound Formula CeO2
Molecular Weight 172.12
Appearance White to Yellow Powder
Melting Point 2,400° C (4,352° F)
Boiling Point 3,500° C (6,332° F)
Density 7.22 g/cm3
Exact Mass 171.895 g/mol
Monoisotopic Mass 171.895264 Da

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A
Globally Harmonized System of Classification and Labelling (GHS) N/A


Cerium(IV) oxide, Ceric oxide, Dioxocerium, Cerium dioxide, Needlal, Ceria, Opaline, Cerium(IV) dioxide, Ceric dioxide, Nidoral, Diketocerium

Chemical Identifiers

Formula CeO2
CAS 1306-38-3
Pubchem CID 73963
MDL MFCD00010933
EC No. 215-150-4
IUPAC Name Dioxocerium
Beilstein Registry No. N/A
SMILES [Ce+4].O=[N+]([O-])[O-].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+](=O)O.[O-][N+](=O)O.[O-][N+]([O-])=O.N.N
InchI Identifier InChI=1S/Ce.2O

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

Related Products & Element Information

See more Cerium products. Cerium (atomic symbol: Ce, atomic number: 58) is a Block F, Group 3, Period 6 element with an atomic weight of 140.116. The number of electrons in each of cerium's shells is 2, 8, 18, 19, 9, 2 and its electron configuration is [Xe]4f2 6s2. Cerium Bohr ModelThe cerium atom has a radius of 182.5 pm and a Van der Waals radius of 235 pm. In its elemental form, cerium has a silvery white appearance. Cerium is the most abundant of the rare earth metals. It is characterized chemically by having two valence states, the +3 cerous and +4 ceric states. The ceric state is the only non-trivalent rare earth ion stable in aqueous solutions. Elemental CeriumIt is, therefore, strongly acidic and moderately toxic. It is also a strong oxidizer. The cerous state closely resembles the other trivalent rare earths. Cerium is found in the minerals allanite, bastnasite, hydroxylbastnasite, monazite, rhabdophane, synchysite and zircon. Cerium was discovered by Martin Heinrich Klaproth, Jöns Jakob Berzelius, and Wilh elm Hisinger in 1803 and first isolated by Carl Gustaf Mosander in 1839. The element was named after the asteroid Ceres.