2,3-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-687.0 ± 1.4kJ/molCcbColomina, Roux, et al., 1981 
Quantity Value Units Method Reference Comment
Δcsolid-4283.8 ± 0.8kJ/molCcbColomina, Roux, et al., 1981Corresponding Δfsolid = -686.9 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
Δsub116.6 ± 0.3kJ/molVColomina, Jimenez, et al., 1985ALS
Δsub116.6 ± 0.3kJ/molMEColomina, Jiménez, et al., 1985Based on data from 336. - 356. K.; AC

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
115.1 ± 0.3346.MEColomina, Jiménez, et al., 1985Based on data from 336. - 356. K.; AC

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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IR spectrum
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Additional Data

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Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Sadtler Research Labs Under US-EPA Contract
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


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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Mass spectrum
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Additional Data

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Due to licensing restrictions, this spectrum cannot be downloaded.

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 NIST Mass Spectrometry Data Center
NIST MS number 340849

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


UV/Visible 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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Santavy, et al., 1973
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 16434
Instrument Unicam SP 700
Melting point 120-122

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

Normal alkane RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedApieson L140.1414.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, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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]

Santavy, et al., 1973
Santavy, F., et al., Coll. Czech. Chem. Comm., 1973, 37, 1825. [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, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References