Neptunium nitride - Misplaced Pages

Neptunium nitride
Names
Other names neptunium mononitride, azanylidyneneptunium, neptunium(III) nitride
Identifiers
CAS Number	12058-90-1
Properties
Chemical formula	NNp
Molar mass	251 g·mol
Appearance	black crystals
Density	14.18 g/cm
Melting point	2,557 °C (4,635 °F; 2,830 K)
Solubility in water	insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Chemical compound

Neptunium nitride is a binary inorganic compound of neptunium and nitrogen with the chemical formula NpN.

Preparation

Neptunium nitride can be prepared by the reaction of freshly obtained neptunium hydride and ammonia:

NpH₃ + NH₃ → NpN + 3H₂

The reaction of neptunium and nitrogen can also obtain neptunium nitride:

Np + N₂ → 2NpN

Neptunium nitride forms black crystals in the cubic system with Fm3m space group. It is insoluble in water and decomposes if heated.

2NpN → 2Np + N₂

Neptunium nitride is used as a target material for plutonium-238 production.

₉₃Np
+
n
→
₉₃Np

"WebElements Periodic Table » Neptunium » neptunium nitride". webelements.com. Retrieved 5 February 2024.
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Sheft, Irving; Fried, Sherman (1950). New Neptunium Compounds. U.S. Atomic Energy Commission, Technical Information Division. p. 4. Retrieved 5 February 2024.
Standard X-ray Diffraction Powder Patterns. U.S. Department of Commerce, National Bureau of Standards. 1953. p. 64. Retrieved 5 February 2024.
Sheft, Irving; Fried, Sherman (1950). New Neptunium Compounds. U.S. Atomic Energy Commission, Technical Information Division. p. 740. Retrieved 5 February 2024.
Sheft, Irving; Fried, Sherman (1950). New Neptunium Compounds. U.S. Atomic Energy Commission, Technical Information Division. p. 5. Retrieved 5 February 2024.
Olson, W. M.; Mulford, R. N. R. (September 1966). "The Melting Point and Decomposition Pressure of Neptunium Mononitride". The Journal of Physical Chemistry. 70 (9): 2932–2934. doi:10.1021/j100881a035. ISSN 0022-3654.
Peruski, Kathryn M. (2022). "Neptunium mononitride as a target material for Pu-238 production". Frontiers in Nuclear Engineering. 1. doi:10.3389/fnuen.2022.1044657. ISSN 2813-3412.