Praseodymium(III) oxide
Pr3+ O2− | |
| Names | |
|---|---|
| IUPAC name
Praseodymium(III) oxide | |
| Other names
Praseodymium oxide, Praseodymium sesquioxide | |
| Identifiers | |
| ECHA InfoCard | 100.031.665 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| Pr2O3 | |
| Molar mass | 329.813 g/mol |
| Appearance | light green solid |
| Density | 6.9 g/cm3 |
| Melting point | 2,183 °C (3,961 °F; 2,456 K) |
| Boiling point | 3,760 °C (6,800 °F; 4,030 K) |
| +8994.0·10−6 cm3/mol | |
| Structure | |
| Hexagonal, hP5 | |
| P-3m1, No. 164 | |
| Thermochemistry | |
Heat capacity (C) |
117.4 J•mol−1•K−1 |
Std enthalpy of formation (ΔfH⦵298) |
−1809.6 kJ•mol−1 |
| Related compounds | |
Other anions |
Praseodymium(III) chloride Praseodymium(III) sulfide |
Other cations |
Neodymium(III) oxide Promethium(III) oxide Cerium(III) oxide |
Related compounds |
Uranium(VI) oxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Praseodymium(III) oxide, praseodymium oxide or praseodymia is the chemical compound composed of praseodymium and oxygen with the formula Pr2O3. It forms light green hexagonal crystals. Praseodymium(III) oxide crystallizes in the manganese(III) oxide or bixbyite structure.