2,3-Butanedione

• Formula: C₄H₆O₂
• Molecular weight: 86.0892
• IUPAC Standard InChI: InChI=1S/C4H6O2/c1-3(5)4(2)6/h1-2H3 Copy

  
• IUPAC Standard InChIKey: QSJXEFYPDANLFS-UHFFFAOYSA-N Copy
• CAS Registry Number: 431-03-8
• 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:
  • 2,3-Butanedione
• Other names: Biacetyl; Butane-2,3-dione; Butanedione; Diacetyl; Dimethyl diketone; Dimethyl glyoxal; 2,3-Butadione; 2,3-Diketobutane; (CH3CO)2; Glyoxal, dimethyl-; Butadione; UN 2346; 2,3-Dioxobutane; 2,3-Butandione; Buta-2,3-dione; Butan-2,3-dione; NSC 8750; butane-2,3-dione (diacetyl); 2,3-butanedione (diacetal); 2,3-butanedione (diacetyl); Butan-2,3-dione (diacetyl); Butanedione (diacetyl); 2,3 Butandione (Diacetyl); 2,3-butanodione
• Information on this page:
  • Gas phase thermochemistry data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• 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.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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.

Nicholson, Szwarc, et al., 1954
Nicholson, G.R.; Szwarc, M.; Taylor, J.W., The heats of formation of diacetyl and of benzyl methyl ketone in the vapour phase, J. Chem. Soc., 1954, 2767-2769. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, References

• Symbols used in this document:
  

  ΔfH°gas

  Enthalpy of formation of gas at standard conditions

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