neptunium

• Formula: Np
• Molecular weight: 237
• IUPAC Standard InChI: InChI=1S/Np Copy

  
• IUPAC Standard InChIKey: LFNLGNPSGWYGGD-UHFFFAOYSA-N Copy
• CAS Registry Number: 7439-99-8
• Chemical structure:
  This structure is also available as a 2d Mol file
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
• Data at other public NIST sites:
  • NIST Atomic Spectra Database - Lines Holdings (on physics web site)
  • NIST Atomic Spectra Database - Levels Holdings (on physics web site)
  • NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Ackermann and Rauh, 1975
Ackermann, R.J.; Rauh, E.G., The Thermodynamics of Vaporization of Neptunium and Plutonium, J. Chem. Thermodyn., 1975, 7, 3, 211-218, https://doi.org/10.1016/0021-9614(75)90058-0 . [all data]

Notes

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• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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