Cerium(IV) oxide
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| 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): | |
| LD50 (Median dose)
|
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.
Contents
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.
