Plutonium oxybromide
Chemical compound
From Wikipedia, the free encyclopedia
Plutonium oxybromide is an inorganic compound of plutonium, oxygen, and bromine with the chemical formula PuOBr.[2][3][4][5]
| Names | |
|---|---|
| Other names
Plutonium oxide bromide | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| PuOBr | |
| Molar mass | 340 g/mol |
| Appearance | dark green crystals |
| Density | 9.00 g/cm3[1] |
| insoluble | |
| Structure | |
| tetragonal | |
| P4/nmm | |
| Related compounds | |
Other anions |
Plutonium oxyfluoride Plutonium oxychloride Plutonium oxyiodide |
Other cations |
Actinium oxybromide Neodymium oxybromide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
The compound was first observed by Davidson et al. in 1949 as a residue from the sublimation of small amounts of PuBr3 in a silica tube. Pure PuOBr can be obtained by treating plutonim(IV) hydroxide with moist hydrogen bromide at 750 °C.[6]
It is also produced in the reaction between plutonium dioxide and hydrogen bromide:[7]
- PuO2 + ½H2 + HBr → PuOBr + H2O
Physical properties
Plutonium oxybromide forms dark green crystals of tetragonal system, space group P4/nmm.[8]
Chemical properties
The compound reacts with dilute acids:[9]
- PuOBr + 2HBr → PuBr3 + H2O