Cerium Oxide

Cerium Oxide

CAS Number
1306-38-3
Molecular Formula
CeO2
CeO2 catalyst for TWCHigh purity CeO2 4N 5NCerium oxide D50 (particle size)Rare earth oxide supplier CAS 1306-38-3

About Cerium Oxide

Ceria (CAS 1306-38-3) serves as a fundamental oxygen storage component in three-way catalytic converters, where it facilitates the redox cycling necessary to mitigate NOx and CO emissions in alignment with tightening EPA Tier 3 standards and the broader US shift toward localized, resilient automotive supply chains. Rar...

Synonyms

  • Cerium oxide
  • Cerium(IV) oxide
  • Cerium(III) oxide
  • Cerium Oxide Nanopowder
  • DICERIUM TRIOXIDE

Cerium Oxide Specifications

CAS Number
1306-38-3
Molecular Formula
CeO2
Molecular Weight
172.115
IUPAC Name
dioxocerium / Cerium(IV) oxide
Canonical SMILES
O=[Ce]=O
InChI Key
CETPSERCERDGAM-UHFFFAOYSA-N
InChI
1S/Ce.2O
EINECS Number
215-150-4
MDL Number
MFCD00010933
UNSPSC Code
12352302
HSN No
28461010
Molecular Weight
172.115
PSA
34.140
LogP
-0.23760
Molar Mass
(172.11g/mol)
Density
7.132
Melting Point
2600ºC
Physical appearance
White or pale yellow powder or cubic crystals; technical grade may be reddish or brown due to impurities; odorless; insoluble in water.
Boiling Point
3,500 °C (6,330 °F)
Safety Statements
S24/25
WGK Germany
3
Risk Statements Code
R36
Hazard Code
Xi
Precautionary Statement Codes
Not Classified
Hazard Classes and Categories
Not Classified

Automotive Catalysis

Vital component in Three-Way Catalytic Converters (TWC). Acts as an Oxygen Storage Capacity (OSC) agent, absorbing and releasing oxygen to maintain optimal stoichiometry for converting CO, NOx, and unburnt hydrocarbons

Glass & Ceramics

Powerful UV-absorber and de-colorizer in glass and as a stabilizer/pigment in ceramics and dental materials

Polishing Agent

Superior abrasive for polishing precision optics, flat panel displays (FPDs), automotive glass, and semiconductors due to its unique combination of mechanical abrasion and chemical activity

Fuel Cells

High-purity CeO₂ is used as an electrolyte material in Solid Oxide Fuel Cells SOFCs) due to its ionic conductivity. ®

Catalyst

a catalyst or catalyst support in automobile exhaust treatment, water-gas shift reactions, and organic synthesis

UV Absorber

a UV absorber in sunscreens, cosmetics, and protective coatings

Electrolyte

an electrolyte or electrode component in solid oxide fuel cells

Glass Additive

a decolorizer or additive to enhance the optical clarity and durability of glass

Antioxidant

a self-regenerating antioxidant or nanozyme in biomedical applications to reduce oxidative stress

Precision Polishing

An essential abrasive and chemical mechanical planarization agent used for achieving nanometer-level flatness in semiconductor wafers, optical lenses, and electronic display screens

Catalysis and Environmental Protection

A highly efficient catalyst and key oxygen-storage promoter applied in automotive three-way catalytic converters and diesel particulate filters to reduce harmful emissions

Energy Storage and Conversion

A promising electrolyte or electrode material utilized in solid oxide fuel cells, lithium-ion batteries, and water-splitting systems for clean energy production

Cosmetics and Protective Coatings

An effective inorganic ultraviolet absorber incorporated into sunscreens, skincare products, and industrial coatings to offer broad-spectrum UV protection and enhance durability

  1. Cerium oxide
  2. Cerium(IV) oxide
  3. Cerium(III) oxide
  4. Cerium Oxide Nanopowder
  5. DICERIUM TRIOXIDE

Cerium Oxide FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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