Deuterium oxide

• Formula: D₂O
• Molecular weight: 20.0276
• IUPAC Standard InChI: InChI=1S/H2O/h1H2/i/hD2 Copy

  
• IUPAC Standard InChIKey: XLYOFNOQVPJJNP-ZSJDYOACSA-N Copy
• CAS Registry Number: 7789-20-0
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Species with the same structure:
  • Deuterium oxide
• Isotopologues:
  • Water-t
  • Water-¹⁸O
  • Water-d
  • Water-t₂
  • Water
• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Vibrational and/or electronic energy levels
  • Fluid Properties
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    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.

Steckel and Szapiro, 1963
Steckel, F.; Szapiro, S., Physical Prop. of Heavy Oxygen Water Part 1. Density and Thermal Expansion, Trans. Faraday Soc., 1963, 59, 331-43. [all data]

Taylor and Selwood, 1934
Taylor, H.S.; Selwood, P.W., Some Properties of Heavy Water, J. Am. Chem. Soc., 1934, 56, 998. [all data]

Aleksandrov, 1986
Aleksandrov, A.A., Critical Parameters of Ordinary and Heavy Water, Teploenergetika, 1986, No. 1, 74. [all data]

Sifner, 1985
Sifner, O., Recommended Values of Critical Parameters of Ordinary and Heavy Water, Chem. Listy, 1985, 79, 199. [all data]

Riesenfeld and Chang, 1935
Riesenfeld, E.H.; Chang, T.L., The Critical Data of Light and Heavy Water and the Density-Temperature Diagrams., Z. Phys. Chem., Abt. B, 1935, 30, 61-8. [all data]

Liu and Lindsay, 1970
Liu, C.-T.; Lindsay, W.T., Jr., Vapor Pressure of D₂O from 106 to 300 ºC, J. Chem. Eng. Data, 1970, 15, 4, 510-513, https://doi.org/10.1021/je60047a015 . [all data]

Notes

Go To: Top, Phase change data, References

• Symbols used in this document:
  

  Pc	Critical pressure
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  ρc	Critical density

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