Benzenehexacarboxylic acid, hexamethyl ester

• Formula: C₁₈H₁₈O₁₂
• Molecular weight: 426.3283
• IUPAC Standard InChI: InChI=1S/C18H18O12/c1-25-13(19)7-8(14(20)26-2)10(16(22)28-4)12(18(24)30-6)11(17(23)29-5)9(7)15(21)27-3/h1-6H3 Copy

  
• IUPAC Standard InChIKey: BQLICNRRYLYEDI-UHFFFAOYSA-N Copy
• CAS Registry Number: 6237-59-8
• 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: Hexamethyl benzenehexacarboxylate; Hexamethyl mellitate; Mellitic acid, hexamethyl ester
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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Condensed 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

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
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

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: Coblentz Society, Inc.

Condensed Phase Spectrum

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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

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

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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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.

Colomina, Laynez, et al., 1972
Colomina, M.; Laynez, J.L.; Perez-Ossorio, R.; Turrion, C., Enthalpies of combustion and formation of six methyl esters of benzene carboxylic acids, J. Chem. Thermodyn., 1972, 4, 499-506. [all data]

Dozen, Fujishima, et al., 1978
Dozen, Y.; Fujishima, S.; Shingu, H., Structures and fusion parameters of methoxycarbonyl-benzenes and -naphthalenes, Thermochim. Acta, 1978, 25, 2, 209, https://doi.org/10.1016/0040-6031(78)85008-4 . [all data]

Jimenez, Menendez, et al., 1995
Jimenez, P.; Menendez, V.; Roux, M.V.; Turrion, C., Vapour pressures and enthalpies of sublimation of four polymethoxycarbonylbenzenes, J. Chem. Thermodyn., 1995, 27, 679-683. [all data]

Dozen, Fujishima, et al., 1978, 2
Dozen, Yasuhiko; Fujishima, Shizu; Shingu, Haruo, Structures and fusion parameters of methoxycarbonyl-benzenes and -naphthalenes, Thermochimica Acta, 1978, 25, 2, 209-216, https://doi.org/10.1016/0040-6031(78)85008-4 . [all data]

Fedoreev and Maksimov, 1977
Fedoreev, S.A.; Maksimov, O.B., The study of the composition of aromatic esters by gas-liquid chromatography, Solid Fuel Chem. (Engl. Transl.), 1977, 17-22. [all data]

Notes

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• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

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