Cerium(IV) oxide

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Cerium(IV) oxide
Names
IUPAC name
Cerium(IV) oxide
Other names
Ceria
Ceric oxide
Ceric dioxide
Cerium dioxide
Cerium oxide
Properties
CeO2
Molar mass 172.115 g/mol
Appearance White oxide
Odor Odorless
Density 7.215 g/cm3
Melting point 2,400 °C (4,350 °F; 2,670 K)
Boiling point 3,500 °C (6,330 °F; 3,770 K)
Insoluble
Solubility Reacts with acids
Hazards
Safety data sheet Sigma-Aldrich
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
5.000 mg/kg (rat, oral)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Cerium(IV) oxide, also known as ceric oxide, ceric dioxide, ceria, cerium oxide or cerium dioxide, is an oxide of the rare-earth metal cerium. It is a pale yellow-white powder with the chemical formula CeO2.

Properties

Chemical

The distinctive property of this material is its reversible conversion to a nonstoichiometric oxide.

Physical

Cerium(IV) oxide is a white solid, odorless which reacts with acids.

Availability

It is sold by lab suppliers.

Preparation

Can be prepared by burning cerium metal in oxygen or calcinating cerium hydroxide.

Projects

  • Make cerium salts

Handling

Safety

Has relative low toxicity.

Storage

In closed bottles.

Disposal

Since it has low toxicity, it can be dumped in trash. Or recycled.

References

Relevant Sciencemadness threads