Benzoic acid, 4-hydroxy-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δfgas-117.7 ± 0.53kcal/molCcrSabbah and Le, 1993ALS
Δfgas-114.8kcal/molN/AColomina, Jimenez, et al., 1980Value computed using ΔfHsolid° value of -594.5±1.0 kj/mol from Colomina, Jimenez, et al., 1980 and ΔsubH° value of 114.0 kj/mol from Sabbah and Le, 1993.; DRB

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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 as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C7H5O3- + Hydrogen cation = Benzoic acid, 4-hydroxy-

By formula: C7H5O3- + H+ = C7H6O3

Quantity Value Units Method Reference Comment
Δr335.9 ± 2.1kcal/molG+TSKebarle and McMahon, 1977gas phase; This is probably the phenolic site acidity, not the carboxylic.; B
Quantity Value Units Method Reference Comment
Δr328.9 ± 2.0kcal/molIMREKebarle and McMahon, 1977gas phase; This is probably the phenolic site acidity, not the carboxylic.; B

Benzoic acid, 4-(acetyloxy)- + Water = Acetic acid + Benzoic acid, 4-hydroxy-

By formula: C9H8O4 + H2O = C2H4O2 + C7H6O3

Quantity Value Units Method Reference Comment
Δr-4.93 ± 0.08kcal/molCmNelander, 1964solid phase; Heat of hydrolysis; ALS

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C7H6O3+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
9.2 ± 0.2EIBenoit, 1973LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6H5O+14.6 ± 0.2CO+OHEIBenoit, 1973LLK
C7H5O2+12.0 ± 0.2OHEIBenoit, 1973LLK

De-protonation reactions

C7H5O3- + Hydrogen cation = Benzoic acid, 4-hydroxy-

By formula: C7H5O3- + H+ = C7H6O3

Quantity Value Units Method Reference Comment
Δr335.9 ± 2.1kcal/molG+TSKebarle and McMahon, 1977gas phase; This is probably the phenolic site acidity, not the carboxylic.; B
Quantity Value Units Method Reference Comment
Δr328.9 ± 2.0kcal/molIMREKebarle and McMahon, 1977gas phase; This is probably the phenolic site acidity, not the carboxylic.; B

Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, 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, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryVF-5MS1537.7Tret'yakov, 200830. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C

Normal alkane RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryHP-5 MS1558.Jerkovic, Hegic, et al., 201030. m/0.25 mm/0.25 μm, Helium, 70. C @ 2. min, 3. K/min, 200. C @ 18. min
CapillaryHP-5 MS1558.Jerkovic and Marijanovic, 201030. m/0.25 mm/0.25 μm, Helium, 70. C @ 2. min, 3. K/min, 200. C @ 18. min
CapillaryHP-5 MS1558.Jerkovic, Tuberso, et al., 201030. m/0.25 mm/0.25 μm, Helium, 70. C @ 2. min, 3. K/min, 200. C @ 18. min

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryHP-5MS1577.Alissandrakis, Kibaris, et al., 200530. m/0.25 mm/0.25 μm, He; Program: 40C(3min) => 2C/min => 180C => 10C/min => 250C(5min)

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, 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 Le, 1993
Sabbah, R.; Le, T.H.D., Etude thermodynamique des trois isomeres de l'acide bydroxybenzolque, Can. J. Chem., 1993, 71, 1378-1383. [all data]

Colomina, Jimenez, et al., 1980
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C., Thermochemical properties of o-, m- and p-hydroxybenzoic acids, J. Calorim. Anal. Therm., 1980, 11, 1-6. [all data]

Kebarle and McMahon, 1977
Kebarle, P.; McMahon, T.B., Intrinsic Acidities of Substituted Phenols and Benzoic Acids Determined by Gas Phase Proton Transfer Equilibria, J. Am. Chem. Soc., 1977, 99, 7, 2222, https://doi.org/10.1021/ja00449a032 . [all data]

Nelander, 1964
Nelander, L., The heats of hydrolysis of aspirin, thioaspirin, and their p-analogues, Acta Chem. Scand., 1964, 18, 973-984. [all data]

Benoit, 1973
Benoit, F., Substituent effects in mass spectrometry. III. Substituent effects in the dissociation of the molecular ions of para and meta subtituted benzoic acids, Org. Mass Spectrom., 1973, 7, 295. [all data]

Tret'yakov, 2008
Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2008. [all data]

Jerkovic, Hegic, et al., 2010
Jerkovic, I.; Hegic, G.; Marijanovic, Z.; Bubalo, D., Organic extractives from Mentha spp. honey and the bee-stomach: methyl syringate, vomifoliol, terpenediol I, hotrienol, and other compounds, Molecules, 2010, 15, 4, 2911-2924, https://doi.org/10.3390/molecules15042911 . [all data]

Jerkovic and Marijanovic, 2010
Jerkovic, I.; Marijanovic, Z., Oak (Quercus frainetto Ten.) honeydaw honey - approach to screening of volatile organic composition and antioxidant capacity (DPPH and FRAP assay), Molecules, 2010, 15, 5, 3744-3756, https://doi.org/10.3390/molecules15053744 . [all data]

Jerkovic, Tuberso, et al., 2010
Jerkovic, I.; Tuberso, C.I.G.; Gugic, M.; Bubalo, D., Composition of Sulla (Hedysarum coronarium L.) honey solvent extractives determined by GC/MS: norisoprenoids and other volatile organic compounds, Molecules, 2010, 15, 9, 6375-6385, https://doi.org/10.3390/molecules15096375 . [all data]

Alissandrakis, Kibaris, et al., 2005
Alissandrakis, E.; Kibaris, A.C.; Tarantilis, P.A.; Harizanis, P.C.; Polissiou, M., Flavour compounds of Greek cotton honey, J. Sci. Food Agric., 2005, 85, 9, 1444-1452, https://doi.org/10.1002/jsfa.2124 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References