Neptunium nitride Names Other namesneptunium mononitride, azanylidyneneptunium, neptunium(III) nitride
Identifiers InChI=1S/N.Np/q-3;+3
Key: CONMGCPYTMDXHG-UHFFFAOYSA-N
Properties N Np Molar mass −1 Appearance black crystals Density 14.18 g/cm3 Melting point 2,557 °C (4,635 °F; 2,830 K) insoluble Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Neptunium nitride is a binaryinorganic compound ofneptunium andnitrogen with the chemical formulaNpN .[ 1] [ 2]
Neptunium nitride can be prepared by the reaction of freshly obtained neptunium hydride andammonia :[ 3]
NpH3 + NH3 → NpN + 3H2 The reaction of neptunium and nitrogen can also obtain neptunium nitride:
2Np + N2 → 2NpN Physical properties [ edit ] Neptunium nitride forms black crystals in thecubic system withFm3m space group .[ 4] [ 5] [ 6] [ 7]
2NpN → 2Np + N2 Neptunium nitride is used as a target material forplutonium-238 production.[ 8]
237 93 n →238 93 ^ "WebElements Periodic Table » Neptunium » neptunium nitride" . webelements.com. Retrieved5 February 2024 .^ 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 . ^ Sheft, Irving; Fried, Sherman (1950).New Neptunium Compounds . Retrieved5 February 2024 . ^ Standard X-ray Diffraction Powder Patterns . Retrieved5 February 2024 .^ Sheft, Irving; Fried, Sherman (1950).New Neptunium Compounds . Retrieved5 February 2024 . ^ Sheft, Irving; Fried, Sherman (1950).New Neptunium Compounds . Retrieved5 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 .
Np(II) Np(III) Np(III,IV) Np(IV)
Np(V)
Np(V,VI)
Np(VI)
Np(VII)
Salts and covalent derivatives of the
nitride ion
