| Formula / Notation | Ce |
|---|---|
| CAS Number | 7440-45-1 |
| Molecular Weight | 140.12 |
| Melting Point | 799.0 |
| Boiling Point | 3443.0 |
| Density | 6.77 |
| Solubility | Insoluble in water |
| Appearance | Soft, silvery-grey, ductile metal |
| Also Known As | Ce, cerium metal |
| Category | Elements |
What is Cerium?
Cerium is a soft, silvery, ductile rare earth metal, atomic number 58. Most abundant lanthanide. Pyrophoric as powder or shavings - sparks when struck (used in lighter flints). Cerium(IV) oxide (ceria) is an important catalyst and polishing agent.
Formula & Notation
IUPAC Name: Cerium
Other Names / Synonyms: Ce, cerium metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 799.0 |
| Boiling Point | 3443.0 |
| Density | 6.77 |
| Molecular Weight | 140.12 |
| Solubility | Insoluble in water |
| Appearance | Soft, silvery-grey, ductile metal |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Cerium is a soft, silvery, ductile rare earth metal, atomic number 58. Most abundant lanthanide. Pyrophoric as powder or shavings - sparks when struck (used in lighter flints). Cerium(IV) oxide (ceria) is an important catalyst and polishing agent.
Catalytic converters (CeO2 - oxygen storage). Glass polishing (cerium oxide). Lighter flints (misch metal - pyrophoric alloy). Self-cleaning oven coatings (CeO2). FCC catalysts. UV-absorbing glass. Rare earth magnets component. Cerium sulfate for water treatment.
Cerium metal: pyrophoric when finely divided - fire hazard. Cerium compounds: low to moderate toxicity. Ce4+ compounds: mild oxidising agents. Dust and fumes: respiratory irritant. Handle shavings carefully - may ignite spontaneously.
The formula or notation for Cerium is: Ce