Molekula
Cerium (IV) oxide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Cerium (IV) oxide is a stable, white-to-yellowish powder composed of cerium in its +4 oxidation state, widely used as a polishing agent, catalyst in chemical reactions, and in gas sensors for oxygen detection. It also serves as a UV absorber in glass manufacturing and as a pigment in ceramics. This high-purity compound has a CAS number of 1306-38-3, a molecular formula of CeO₂, and a molecular weight of 172.11 g/mol. It requires only ambient storage but is classified as hazardous, carrying the signal word "Warning" with hazard statements H313, H315, H319 and H335 (may be harmful in contact with skin, causes skin irritation, causes serious eye irritation and may cause respiratory irritation). Molekula supplies Cerium (IV) oxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Off-White powder |
| Loss on Ignition | 0-1（%） |
| Purity | 99.9-100（%） |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 2600 °C |
Source: PubChem CID 73963 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 90033963 |
| CAS Number | 1306-38-3 |
| IUPAC Name | dioxocerium |
| EC Number | 215-150-4 |
| Molecular Formula | CeO2 |
| Molecular Weight | 172.11 |
| Exact Mass | 171.8953 |
| SMILES | O=[Ce]=O |
| InChIKey | CETPSERCERDGAM-UHFFFAOYSA-N |
| InChI | InChI=1S/Ce.2O |
| PubChem CID | 73963 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28461000 |
| Tariff Code | 2846100090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H313 May be harmful in contact with skin
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Ceria
- Ceric dioxide
- Ceric oxide
- Cerium(4+) oxide
- Cerium(IV)dioxide
- Needlal
- Needlal U15
- Needlal W15
- Nidoral
- Opaline
Frequently asked questions
What is cerium(IV) oxide primarily used for?
Cerium(IV) oxide is commonly used in catalytic converters, glass polishing, as a UV absorber in sunscreens, and in solid oxide fuel cells.
What is the chemical formula and molecular weight of cerium(IV) oxide?
The chemical formula is CeO₂, and the molecular weight is 172.11 g/mol.
How should cerium(IV) oxide be stored?
Store in a cool, dry place at ambient temperature, away from incompatible substances.
What grades or purity levels of cerium(IV) oxide does Molekula supply?
Molekula supplies cerium(IV) oxide in technical grade (99%+ purity) and high-purity research grade (99.9%+ purity).
Can Molekula supply cerium(IV) oxide in bulk quantities?
Yes, Molekula can supply cerium(IV) oxide in bulk, with quantities tailored to customer requirements.
What documentation comes with a cerium(IV) oxide order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.