Cerium Metal | AMERICAN ELEMENTS ® (original) (raw)
Chemical Structure
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Cerium Metal is available as disc, granules, ingot, pellets, pieces, powder, rod, sputtering target, wire, and in numerous other forms and custom shapes. See safety data and research. Ultra high purity and high purity forms also include metal powder, submicron powder and nanoscale, quantum dots, targets for thin film deposition, pellets for evaporation and single crystal or polycrystalline forms. Elements can also be introduced into alloys or other systems as fluorides, oxides or chlorides or as solutions. Cerium metal is generally immediately available in most volumes. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
| Molecular Weight | 140.12 |
|---|---|
| Appearance | Silvery |
| Melting Point | 795 °C |
| Boiling Point | 3360 °C |
| Density | 6689kg/m3 |
| Solubility in H2O | N/A |
| Poisson's Ratio | 0.24 |
| Young's Modulus | 33.6 GPa |
| Vickers Hardness | 270 MPa |
| Tensile Strength | N/A |
| Thermal Conductivity | 0.113/cm/K @ 298.2 K |
| Thermal Expansion | (r.t.) 6.3 µm/(m·K) |
| Electrical Resistivity | 75.0 microhm-cm @ 25 °C |
| Electronegativity | 1.1 Paulings |
| Specific Heat | 0.049 Cal/g/K @ 25 °C |
| Heat of Fusion | 2.12 Cal/gm mole |
| Heat of Vaporization | 95 K-cal/gm atom at 3426 °C |
| Signal Word | Danger |
|---|---|
| Hazard Statements | H228-H302-H312-H315-H319-H332-H335 |
| Hazard Codes | F, Xn |
| Precautionary Statements | P210-P231+P232-P280-P240-P241-P233-P370+P378c-P335+P334-P402+P404-P501a |
| Flash Point | Not applicable |
| Risk Codes | 11-20/21/22-36/37/38 |
| Safety Statements | 16-26-36/37/39 |
| RTECS Number | N/A |
| Transport Information | UN 1333 4.1/PG 2 |
| WGK Germany | 3 |
| GHS Pictogram | Image  |
| Linear Formula | Ce |
|---|---|
| Pubchem CID | 23974 |
| MDL Number | MFCD00010924 |
| EC No. | 231-154-9 |
| Beilstein/Reaxys No. | N/A |
| SMILES | [Ce] |
| InchI Identifier | InChI=1S/Ce |
| InchI Key | GWXLDORMOJMVQZ-UHFFFAOYSA-N |
| Chemical Formula | |
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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 Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.
May 12, 2026 Los Angeles, CA
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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. 
The 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. 
It is therefore strongly acidic and oxidizing, in addition to being moderately toxic.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 Wilhelm Hisinger in 1803 and first isolated by Carl Gustaf Mosander in 1839. The element was named after the asteroid Ceres, which itself was named after the Roman god of agriculture.