Benzoic acid, 4-bromo-
- Formula: C7H5BrO2
- Molecular weight: 201.017
- IUPAC Standard InChIKey: TUXYZHVUPGXXQG-UHFFFAOYSA-N
- CAS Registry Number: 586-76-5
- 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: Benzoic acid, p-bromo-; p-Bromobenzoic acid; 4-Bromobenzoic acid; p-Carboxybromobenzene
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Gas 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 |
---|---|---|---|---|---|
ΔfH°gas | -275.9 ± 1.4 | kJ/mol | Ccr | Sabbah and Rojas Aguilar, 1996 | |
ΔfH°gas | -272.0 ± 1.7 | kJ/mol | Ccr | Ferrao and Pilcher, 1987 | |
ΔfH°gas | -290. ± 4.6 | kJ/mol | Ccb | Bjellerup, 1959 | Heat of formation derived by Cox and Pilcher, 1970 |
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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 531. | K | N/A | Lamneck, 1954 | Uncertainty assigned by TRC = 3. K; TRC |
Tfus | 527. | K | N/A | Lamneck, 1954 | Uncertainty assigned by TRC = 4. K; TRC |
Tfus | 529. | K | N/A | Lamneck, 1954 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 103.1 ± 0.6 | kJ/mol | C | Tan and Raphael, 1994 | AC |
ΔsubH° | 107.6 ± 1.1 | kJ/mol | C | Ferrao and Pilcher, 1987 | ALS |
ΔsubH° | 107.6 ± 1.1 | kJ/mol | C | Ferrao and Pilcher, 1987 | AC |
ΔsubH° | 87.9 ± 4.2 | kJ/mol | V | Bjellerup, 1959 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
107.4 ± 0.5 | 358. | ME | Ribeiro da Silva, Fonseca, et al., 2005 | Based on data from 349. to 366. K.; AC |
110.1 ± 0.8 | 358. | ME | Ribeiro da Silva, Fonseca, et al., 2005 | Based on data from 349. to 366. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
30.87 | 526.3 | DSC | Ribeiro da Silva, Fonseca, et al., 2005 | 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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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
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 | NIST Mass Spectrometry Data Center |
State | gas |
Instrument | HP-GC/MS/IRD |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, 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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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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 | Chemical Concepts |
NIST MS number | 152955 |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, 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
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Packed | SE-30 | 1415. | Peng, Ding, et al., 1988 | He, Supelcoport and Chromosorb, 40. C @ 4. min, 10. K/min, 250. C @ 60. min; Column length: 3.05 m |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, 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.
Sabbah and Rojas Aguilar, 1996
Sabbah, R.; Rojas Aguilar, A.,
Thermodynamic study of the three isomers of bromo and iodobenzoic acids. Part II,
Struct. Chem., 1996, 7, 383-390. [all data]
Ferrao and Pilcher, 1987
Ferrao, M.C.C.H.; Pilcher, G.,
Enthalpies of combustion of the three bromobenzoic acids by rotating-bomb calorimetry,
J. Chem. Thermodyn., 1987, 19, 543-548. [all data]
Bjellerup, 1959
Bjellerup, L.,
A moving-bomb method for combustion calorimetry of organic bromine compounds,
Acta Chem. Scand., 1959, 13, 1511-1541. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Lamneck, 1954
Lamneck, J.H.,
Bromination of the two propylbenzenes and three butylbenzenes,
J. Am. Chem. Soc., 1954, 76, 1106. [all data]
Tan and Raphael, 1994
Tan, Z.-C.; Raphael, S.,
Thermodynamic study of the three isomers of bromobenzoic acid,
Sci. China, Ser. B: Chem., Life Sci., Earth Sci., 1994, 37, 6, 641. [all data]
Ribeiro da Silva, Fonseca, et al., 2005
Ribeiro da Silva, Manuel A.V.; Fonseca, José M.S.; Carvalho, Rui P.B.M.; Monte, Manuel J.S.,
Thermodynamic study of the sublimation of six halobenzoic acids,
The Journal of Chemical Thermodynamics, 2005, 37, 3, 271-279, https://doi.org/10.1016/j.jct.2004.09.005
. [all data]
Peng, Ding, et al., 1988
Peng, C.T.; Ding, S.F.; Hua, R.L.; Yang, Z.C.,
Prediction of Retention Indexes I. Structure-Retention Index Relationship on Apolar Columns,
J. Chromatogr., 1988, 436, 137-172, https://doi.org/10.1016/S0021-9673(00)94575-8
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas 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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