Protactinium nitride
Chemical compound
From Wikipedia, the free encyclopedia
Protactinium nitride is a binary inorganic compound of protactinium and nitrogen with the chemical formula PaN.[1][2][3]
| Names | |
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| Other names
Protactinium mononitride, protactinium(III) nitride | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| PaN | |
| Molar mass | 245.043 g·mol−1 |
| Appearance | crystals |
| Density | 12.6 g/cm3 |
| Melting point | 2,227 °C (4,041 °F; 2,500 K) |
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 can be obtained from the reaction of protactinium metal and nitrogen:[4]
- 2 Pa + N2 → 2 PaN
Also by heating protactinium tetrachloride or pentachloride in ammonia gas.[5]
Physical properties
PaN crystals are of the cubic system with Fm3m space group.[6]
