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Neptunium nitride
Chemical compound

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

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Preparation

Neptunium nitride can be prepared by the reaction of freshly obtained neptunium hydride and ammonia:3

NpH3 + NH3 → NpN + 3H2

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

Np + N2 → 2NpN

Physical properties

Neptunium nitride forms black crystals in the cubic system with Fm3m space group.45 It is insoluble in water6 and decomposes if heated.7

2NpN → 2Np + N2

Uses

Neptunium nitride is used as a target material for plutonium-238 production.8

23793Np + n → 23893Np

References

  1. "WebElements Periodic Table » Neptunium » neptunium nitride". webelements.com. Retrieved 5 February 2024. https://webelements.com/compounds/neptunium/neptunium_nitride.html ↩

  2. Sheft, Irving; Fried, Sherman (March 1953). "New Neptunium Compounds". Journal of the American Chemical Society. 75 (5): 1236–1237. Bibcode:1953JAChS..75.1236S. doi:10.1021/ja01101a067. ISSN 0002-7863. /wiki/Journal_of_the_American_Chemical_Society ↩

  3. Sheft, Irving; Fried, Sherman (1950). New Neptunium Compounds. U.S. Atomic Energy Commission, Technical Information Division. p. 4. Retrieved 5 February 2024. https://books.google.com/books?id=c1bcqdRlz4IC&dq=neptunium+nitride+NpN&pg=PA4 ↩

  4. Standard X-ray Diffraction Powder Patterns. U.S. Department of Commerce, National Bureau of Standards. 1953. p. 64. Retrieved 5 February 2024. https://books.google.com/books?id=kFAM9FKYsIkC&dq=neptunium+nitride+NpN&pg=RA4-PA64 ↩

  5. Sheft, Irving; Fried, Sherman (1950). New Neptunium Compounds. U.S. Atomic Energy Commission, Technical Information Division. p. 740. Retrieved 5 February 2024. https://books.google.com/books?id=c1bcqdRlz4IC&dq=neptunium+nitride+NpN&pg=PA4 ↩

  6. Sheft, Irving; Fried, Sherman (1950). New Neptunium Compounds. U.S. Atomic Energy Commission, Technical Information Division. p. 5. Retrieved 5 February 2024. https://books.google.com/books?id=c1bcqdRlz4IC&dq=neptunium+nitride&pg=PA5 ↩

  7. 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. /wiki/The_Journal_of_Physical_Chemistry ↩

  8. 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. https://doi.org/10.3389%2Ffnuen.2022.1044657 ↩