2,3-Butanediol, 2,3-dimethyl-

• Formula: C₆H₁₄O₂
• Molecular weight: 118.1742
• IUPAC Standard InChI: InChI=1S/C6H14O2/c1-5(2,7)6(3,4)8/h7-8H,1-4H3 Copy

  
• IUPAC Standard InChIKey: IVDFJHOHABJVEH-UHFFFAOYSA-N Copy
• CAS Registry Number: 76-09-5
• 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.
• Other names: Pinacol; Tetramethylethylene glycol; 2,3-Dimethyl-2,3-butanediol; meso-2,3-Dimethyl-2,3-butanediol; 2,3-Dihydroxy-2,3-dimethylbutane; 2,3-Dimethyl-2,3-dihydroxybutane
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• Information on this page:
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Gas phase ion energetics data
  • Gas Chromatography
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Reduced pressure boiling point

Enthalpy of vaporization

Enthalpy of fusion

IR Spectrum

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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

Gas Phase Spectrum

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Additional Data

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

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

Priest, Woolley, et al., 1983
Priest, J.G.; Woolley, E.M.; Ott, J.B.; Goates, J.R., Solid+liquid phase equilibria, excess enthalpies, and enthalpies of fusion fusion in 2,3-dimethyl-2,3-butanediol + water., J. Chem. Thermodyn., 1983, 15, 357-66. [all data]

Mellan, 1962
Mellan, I., Polyhydric Alcohols, Spartan Books: Washington, DC, 1962. [all data]

Guthrie, 1977
Guthrie, J.P., Cyclization of glycol monoesters to give hemiorthoesters: a test of the thermochemical method for determining free energies of tetrahedral intermediates, Can. J. Chem., 1977, 55, 3562-3574. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Priest, Woolley, et al., 1983, 2
Priest, Jeffrey G.; Woolley, Earl M.; Ott, J. Bevan; Goates, J. Rex, Solid + liquid phase equilibria, excess enthalpies, and enthalpies of fusion in (2,3-dimethyl-2,3-butanediol + water), The Journal of Chemical Thermodynamics, 1983, 15, 4, 357-366, https://doi.org/10.1016/0021-9614(83)90065-4 . [all data]

Notes

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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