Cerium Dioxide
Ceric Oxide, Cerium(IV) Oxide, CeO2, Cerium White.
- CAS
- 1306-38-3
- EC
- 215-150-4
Cerium Dioxide is a pale yellow rare earth oxide known for its exceptional polishing efficiency and UV absorption properties. It is available in various Optical Grades tailored for precision glass and semiconductor surface finishing.
This material serves as a vital oxygen storage component in automotive catalytic converters. Its unique redox properties allow it to release and absorb oxygen, significantly reducing harmful emissions in combustion engines.
In the electronics sector, it is utilized as a high-purity abrasive for Chemical Mechanical Planarization (CMP). It provides superior thermal stability and is essential in the production of solid oxide fuel cells.
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Cerium Dioxide
Applications
- Glass Polishing: The industry standard for high-precision polishing of optical lenses, mirrors, and smartphone screens.
- Catalysis: Used in automotive three-way catalysts (TWC) to facilitate the oxidation of carbon monoxide and hydrocarbons.
- UV Filtering: Incorporated into coatings and glass formulations to provide high-efficiency UV protection without compromising transparency.
Safety & Risks
Classified as a Mild Irritant for dust inhalation. Avoid breathing dust and ensure adequate ventilation. Use N95 Respirators, Safety Glasses, and Gloves to prevent prolonged exposure.
Packaging
25 kg Fiber Drums, 50 kg Iron Drums, or vacuum-sealed foil bags for high-purity electronic grades.