_oxide&sq=Envato&lang=en&file=File:Kristallstruktur_Lanthanoid-A-Typ.png) Pr3+ O2−
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| Names | |
|---|---|
| IUPAC name
Praseodymium(III) oxide
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| Other names
Praseodymium oxide, Praseodymium sesquioxide
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| 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)[1] |
| +8994.0·10−6 cm3/mol | |
| Structure | |
| Hexagonal, hP5 | |
| P-3m1, No. 164 | |
| Thermochemistry | |
Heat capacity (C)
|
117.4 J•mol−1•K−1[1] |
Std enthalpy of
formation (ΔfH⦵298) |
-1809.6 kJ•mol−1 |
| Related compounds | |
Other anions
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Praseodymium(III) chloride Praseodymium(III) sulfide |
Other cations
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Neodymium(III) oxide Promethium(III) oxide Cerium(III) oxide |
Related compounds
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Uranium(VI) 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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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.[1] Praseodymium(III) oxide crystallizes in the manganese(III) oxide or bixbyite structure.[2]
- ^ a b c Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 478, 523, ISBN 0-8493-0594-2
- ^ Dabrowski, Jarek; Weber, Eicke R. (2004), Predictive Simulation of Semiconductor Processing, Springer, p. 264, ISBN 978-3-540-20481-7, retrieved 2009-03-18