Protactinium monoxide
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| Names | |
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| IUPAC name
Protactinium(II) oxide
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| Identifiers | |
3D model (JSmol)
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CompTox Dashboard (EPA)
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| Properties | |
| PaO | |
| Molar mass | 247.035 g mol−1 |
| Appearance | black crystals |
| Density | 13.44 g/cm3 |
| Structure | |
| rocksalt[1] | |
| Fm3m, No. 225 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Protactinium monoxide is a radioactive inorganic compound and one of the oxides of protactinium. Its chemical formula is PaO. It is a black solid that crystallizes in the rock-salt structure.[1] Protactinium monoxide can be produced in minute quantities from the oxidation of protactinium. The protactinium monoxide cation (PaO+) is very active and can activate hydrocarbons such as alkenes.[2]