C

Cerium(IV) oxide

IUPAC: dioxocerium

CeO2 Inorganic Compounds CAS 1306-38-3
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Quick Reference
Formula / NotationCeO2
CAS Number1306-38-3
Molecular Weight172.115
AppearancePellets or Large Crystals; Dry Powder, Other Solid; Other Solid; Liquid; Dry Powder
Also Known Asdioxocerium; Ceric oxide; 1306-38-3; Ceria; Ceric dioxide; Cerium(IV)dioxide; Needlal; Nidoral; Opaline; Cerium(4+) oxide
CategoryInorganic Compounds

What is Cerium(IV) oxide?

Ceric oxide is a metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis. It is a metal oxide and a cerium molecular entity.

Formula & Notation

CeO2

IUPAC Name: dioxocerium

Other Names / Synonyms: dioxocerium; Ceric oxide; 1306-38-3; Ceria; Ceric dioxide; Cerium(IV)dioxide; Needlal; Nidoral; Opaline; Cerium(4+) oxide

Properties & Characteristics

Appearance: Pellets or Large Crystals; Dry Powder, Other Solid; Other Solid; Liquid; Dry Powder. Molecular formula: CeO2. Molecular weight: 172.115 g/mol.

Physical Data

PropertyValue
Molecular Weight172.115
AppearancePellets or Large Crystals; Dry Powder, Other Solid; Other Solid; Liquid; Dry Powder

Uses & Applications

Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.

Safety Information

May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Cerium(IV) oxide
Formula CeO2
CAS Number 1306-38-3
Molecular Weight 172.115
Synonyms dioxocerium; Ceric oxide; 1306-38-3; Ceria; Ceric dioxide; Cerium(IV)dioxide; Needlal; Nidoral; Opaline; Cerium(4+) oxide

Frequently Asked Questions

Ceric oxide is a metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis. It is a metal oxide and a cerium molecular entity.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.