Description

Cerium(IV) Oxide is a versatile inorganic compound with the chemical formula CeO₂. It serves as a powerful and selective oxidizing agent, a property that makes it indispensable in numerous industrial chemical processes and material science applications. This high-purity material is critical for manufacturers in the catalysis, glass polishing, electronics, and advanced ceramics sectors seeking reliable performance and consistent quality.

Application

• Catalysis: Widely used as a catalyst and catalyst support in automotive exhaust systems (three-way catalysts), water-gas shift reactions, and organic synthesis due to its excellent oxygen storage capacity.
• Glass Polishing & Optics: Acts as a highly effective polishing agent for precision optical lenses, display glass (LCD/OLED), and semiconductor wafers, providing a superior, scratch-free finish.
• Electronics & Solid Oxide Fuel Cells (SOFCs): Employed as a key electrolyte material in SOFCs and as a high-κ dielectric layer in semiconductor devices.
• UV Absorption & Coatings: Incorporated into coatings, plastics, and sunscreens for its strong ultraviolet (UV) light absorption and blocking properties.
• Advanced Ceramics & Structural Materials: Used as a sintering aid and stabilizer in zirconia-based ceramics and other high-performance structural materials.
• Chemical Mechanical Planarization (CMP): A critical slurry component in the CMP process for advanced semiconductor manufacturing nodes.
• Oxidizing Agent in Synthesis: Utilized in laboratory and industrial settings as a stoichiometric oxidizing agent for various organic transformations.

Basic Information

Product Name	Cerium(IV) Oxide
CAS No.	23322-64-7
Molecular Formula	CeO₂
Molecular Weight	172.11 g/mol
Synonyms	Ceric Oxide; Ceria; Cerium Dioxide; Cerium(4+) Oxide; Cerium Oxide (CeO2); Dioxocerium; Opaline; Certiox; Cerium(IV) Dioxide; Rare Earth Oxide
EINECS	245-563-1

Quality Control

Our Cerium(IV) Oxide is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, particle size, and chemical composition. Certificates of Analysis (COA) documenting these results are provided to guarantee traceability and compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong reducing agents and organic compounds. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Pale yellow to white powder
Assay (as CeO₂)	≥ 99.9%
Particle Size (D50)	Customizable (e.g., 0.5 µm, 1.0 µm)
Specific Surface Area (BET)	10 - 150 m²/g (Grade dependent)
Loss on Ignition (LOI)	≤ 1.0%
Rare Earth Impurities	≤ 0.1% (Total)
Heavy Metals (as Pb)	≤ 50 ppm
Chloride (Cl)	≤ 100 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.