3,5-Dimethoxybenzoic acid

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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

Quantity Value Units Method Reference Comment
Δfsolid-724.0 ± 1.5kJ/molCcbColomina, Roux, et al., 1981 
Quantity Value Units Method Reference Comment
Δcsolid-4246.7 ± 0.9kJ/molCcbColomina, Roux, et al., 1981Corresponding Δfsolid = -724.0 kJ/mol (simple calculation by NIST; no Washburn corrections)

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Δsub127.1 ± 0.6kJ/molVColomina, Jimenez, et al., 1985ALS
Δsub127.1 ± 0.6kJ/molMEColomina, Jiménez, et al., 1985Based on data from 356. - 376. K.; AC

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
124.5 ± 0.6369.MEColomina, Jiménez, et al., 1985Based on data from 356. - 376. K.; AC

Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW-3612
NIST MS number 231999

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Gas Chromatography

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes

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

Normal alkane RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedApieson L140.1559.Hedin, Minyard, et al., 1967Nitrogen, Chromosorb W HMDS (60-80 mesh); Column length: 1.8 m

References

Go To: Top, Condensed phase thermochemistry data, Phase change 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.

Colomina, Roux, et al., 1981
Colomina, M.; Roux, M.V.; Turrion, C., Thermochemical properties of benzoic acid derivatives. X. Enghalpies of combustion and formation of 2,3-, 2,4-, 2,6-, 3,4-, and 3,5-dimethoxybenzoic acids, J. Chem. Thermodyn., 1981, 13, 1169-1173. [all data]

Colomina, Jimenez, et al., 1985
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C., Thermochemical properties of benzoic acid derivatives. XII. Vapour pressures and enthalpies of sublimation and formation of five dimethoxybenzoic acids, J. Chem. Thermodyn., 1985, 17, 1091-10. [all data]

Colomina, Jiménez, et al., 1985
Colomina, M.; Jiménez, P.; Roux, M.V.; Turrión, C., Thermochemical properties of benzoic acid derivatives XII. Vapour pressures and enthalpies of sublimation and formation of five dimethoxybenzoic acids, The Journal of Chemical Thermodynamics, 1985, 17, 11, 1091-1096, https://doi.org/10.1016/0021-9614(85)90096-5 . [all data]

Hedin, Minyard, et al., 1967
Hedin, P.A.; Minyard, J.P.; Thompson, A.C., Chromatographic and spectral analysis of phenolic acids and related compounds, J. Chromatogr., 1967, 30, 43-53, https://doi.org/10.1016/S0021-9673(00)84111-4 . [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References