Deuterium

• Formula: D₂
• Molecular weight: 4.0282035556
• IUPAC Standard InChI: InChI=1S/H2/h1H/i1+1D Copy

  
• IUPAC Standard InChIKey: UFHFLCQGNIYNRP-VVKOMZTBSA-N Copy
• CAS Registry Number: 7782-39-0
• Chemical structure:
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• Isotopologues:
  • tritium
  • Hydrogen
  • deuterium hydride
• Other names: D2; UN 1957
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• Information on this page:
  • Gas phase thermochemistry data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • Constants of diatomic molecules
  • Fluid Properties
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas phase thermochemistry 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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Mass spectrum (electron ionization)

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

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  S°gas,1 bar

  Entropy of gas at standard conditions (1 bar)

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