Benzoic acid, 2,4-dimethoxy-
- Formula: C9H10O4
- Molecular weight: 182.1733
- IUPAC Standard InChIKey: GPVDHNVGGIAOQT-UHFFFAOYSA-N
- CAS Registry Number: 91-52-1
- 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: 2,4-Dimethoxybenzoic acid
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Phase change data
Go To: Top, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
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 |
---|---|---|---|---|---|
Tfus | 380.15 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 380.45 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 29.49 ± 0.1 | kcal/mol | V | Colomina, Jimenez, et al., 1985 | ALS |
ΔsubH° | 29.49 ± 0.1 | kcal/mol | ME | Colomina, Jiménez, et al., 1985 | Based on data from 346. to 367. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
28.80 ± 0.1 | 357. | ME | Colomina, Jiménez, et al., 1985 | Based on data from 346. to 367. K.; AC |
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
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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-IW-6064 |
NIST MS number | 242973 |
Gas Chromatography
Go To: Top, 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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Apieson L | 140. | 1567. | Hedin, Minyard, et al., 1967 | Nitrogen, Chromosorb W HMDS (60-80 mesh); Column length: 1.8 m |
References
Go To: Top, 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.
Witschonke, 1954
Witschonke, C.R.,
Freezing point and purity data for some organic compounds,
Anal. Chem., 1954, 26, 562-4. [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, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Tfus Fusion (melting) point 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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