Actinium(III) oxide
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| Names | |
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IUPAC name
Actinium(III) oxide
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Systematic IUPAC name
Actinium(3+) oxide
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| Other names
Actinium sesquioxide
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| Identifiers | |
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3D model (Jmol)
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| ECHA InfoCard | 100.031.275 |
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| Properties | |
| Ac2O3 | |
| Molar mass | 502.00 g·mol−1 |
| Appearance | white |
| Structure | |
| Trigonal, hP5 | |
| P-3m1, No. 164 | |
| Related compounds | |
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Other cations
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Scandium(III) oxide Yttrium(III) oxide Lanthanum(III) oxide |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 (what is   ?) |
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| Infobox references | |
Actinium(III) oxide is a chemical compound containing the rare radioactive element actinium. It has the formula Ac2O3. It is similar to its corresponding lanthanum compound, lanthanum(III) oxide, and contains actinium in the oxidation state +3. Actinium oxide is not to be confused with Ac2O (acetic anhydride), where Ac is an abbreviation for acetyl instead of the symbol of the element actinium.
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