Neptunium(IV) phosphide
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3D model (JSmol)
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CompTox Dashboard (EPA)
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| Properties | |
| Np3P4 | |
| Molar mass | 835 g·mol−1 |
| Appearance | black crystals |
| insoluble | |
| Related compounds | |
Related compounds
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Neptunium(III) phosphide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Neptunium(IV) phosphide is a binary inorganic compound of neptunium metal and phosphorus with the chemical formula Np3P4.[1]
Preparation
[edit | edit source]Neptunium(IV) phosphide can be formed from the fusion of stoichiometric amounts of neptunium and red phosphorus in an evacuated and sealed quartz tube at 750 °C:[2][3]
- 3Np + 4P → Np3P4
Physical properties
[edit | edit source]Neptunium(IV) phosphide forms black crystals of cubic crystal system, spatial group I 43d. Isostructural with Th3P4.[4]
It does not dissolve in water.
Chemical properties
[edit | edit source]The compound reacts with concentrated HCl to give a green solution:[5]
- Np3P4 + 12HCl → 3NpCl4 + 4PH3
References
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