Back Serium(IV)oksied Afrikaans أكسيد السيريوم الرباعي Arabic اوکسید سریوم (IV) AZB Òxid de ceri(IV) Catalan Oxid ceričitý Czech Cer(IV)-oxid German Óxido de cerio(IV) Spanish سریم(IV) اکسید Persian Cerium(IV)oksidi Finnish Oxyde de cérium(IV) French
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| Names | |
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| IUPAC name
Cerium(IV) oxide
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| Other names
Ceric oxide,
Ceria, Cerium dioxide | |
| Identifiers | |
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3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.013.774 |
PubChem CID
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| UNII |
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CompTox Dashboard (EPA)
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| Properties | |
| CeO2 | |
| Molar mass | 172.115 g/mol |
| Appearance | white or pale yellow solid, slightly hygroscopic |
| 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 | |
| +26.0·10−6 cm3/mol | |
| Structure | |
| cubic crystal system, cF12 (fluorite)[1] | |
| Fm3m, #225 | |
a = 5.41 Å [2], b = 5.41 Å, c = 5.41 Å α = 90°, β = 90°, γ = 90°
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| Ce, 8, cubic O, 4, tetrahedral | |
| Hazards | |
| NFPA 704 (fire diamond) | |
| Related compounds | |
Related compounds
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Cerium(III) oxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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. It is an important commercial product and an intermediate in the purification of the element from the ores. The distinctive property of this material is its reversible conversion to a non-stoichiometric oxide.
- ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
- ^ E. A. Kümmerle and G. Heger, “The Structures of C-Ce2O3+δ, Ce7O12, and Ce11O20,” Journal of Solid State Chemistry, vol. 147, no. 2, pp. 485–500, 1999.