1,4-Dioxane

• Formula: C₄H₈O₂
• Molecular weight: 88.1051
• IUPAC Standard InChI: InChI=1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2 Copy

  
• IUPAC Standard InChIKey: RYHBNJHYFVUHQT-UHFFFAOYSA-N Copy
• CAS Registry Number: 123-91-1
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: p-Dioxane; p-Dioxan; Di(ethylene oxide); Diethylene dioxide; Diethylene ether; Dioxan; Dioxane; Dioxyethylene ether; 1,4-Diethylene dioxide; 1,4-Dioxan; 1,4-Dioxacyclohexane; Glycol ethylene ether; Tetrahydro-p-dioxin; Diokan; Dioksan; Diossano-1,4; Dioxaan-1,4; Dioxan-1,4; Dioxane-1,4; Dioxanne; NCI-C03689; Tetrahydro-1,4-dioxin; p-Dioxin, tetrahydro-; Rcra waste number U108; UN 1165; 1,4-Dioxin, tetrahydro-; 1,4-Diethyleneoxide; Glycol ethylene ether 8; NE 220; NSC 8728
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• Information on this page:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Ion clustering data
  • IR Spectrum
  • UV/Visible spectrum
  • Vibrational and/or electronic energy levels
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Gas phase thermochemistry data

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C₄H₈O₂⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

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

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Kovats' RI, non-polar column, temperature ramp

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Kovats' RI, polar column, isothermal

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Kovats' RI, polar column, temperature ramp

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Kovats' RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, isothermal

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, isothermal

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

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

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

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Kersten and Poole, 1987
Kersten, B.R.; Poole, C.F., Influence of concurrent retention mechanisms on the determination of stationary phase selectivity in gas chromatography, J. Chromatogr., 1987, 399, 1-31, https://doi.org/10.1016/S0021-9673(00)96108-9 . [all data]

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Notes

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

• Symbols used in this document:
  

  AE	Appearance energy
  Cp,gas	Constant pressure heat capacity of gas
  IE (evaluated)	Recommended ionization energy
  S°gas	Entropy of gas at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions

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