Cyclohexanecarboxylic acid
- Formula: C7H12O2
- Molecular weight: 128.1690
- IUPAC Standard InChIKey: NZNMSOFKMUBTKW-UHFFFAOYSA-N
- CAS Registry Number: 98-89-5
- 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, hexahydro-; Cyclohexylcarboxylic acid; Hexahydrobenzoic acid; Carboxycyclohexane; Cyclohexylmethanoic 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 |
---|---|---|---|---|---|
ΔcH°solid | -928.23 ± 0.07 | kcal/mol | Ccb | van Maurik, 1950 | Corresponding ΔfHºsolid = -140.0 kcal/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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 505.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 505.7 | K | N/A | Lumsden, 1905 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 304. | K | N/A | Reppe and Sweckendick, 1948 | Uncertainty assigned by TRC = 4. K; TRC |
Tfus | 298.5 | K | N/A | White and Bishop, 1940 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 302. | K | N/A | Lumsden, 1905 | Uncertainty assigned by TRC = 2. K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
393.7 | 0.017 | Weast and Grasselli, 1989 | BS |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.2 | 301.9 | Domanska, Morawski, et al., 2008 | AC |
Reaction 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: John E. Bartmess
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
C7H11O2- + =
By formula: C7H11O2- + H+ = C7H12O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 345.1 ± 2.2 | kcal/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 338.1 ± 2.0 | kcal/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 196.9 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 189.5 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
De-protonation reactions
C7H11O2- + =
By formula: C7H11O2- + H+ = C7H12O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 345.1 ± 2.2 | kcal/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 338.1 ± 2.0 | kcal/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; B |
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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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 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
van Maurik, 1950
van Maurik, D.,
Verbrandingswarmte van Cyclohexaanmonocarbonzuur en de Cyclohexaandicarbonzuren, Thesis, Amsterdam, 1950, 1-74. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Lumsden, 1905
Lumsden, J.S.,
The physical properties of heptoic, hexahydrobenzoic, and benzoic acids and their derivatives,
J. Chem. Soc., 1905, 87, 90-98. [all data]
Reppe and Sweckendick, 1948
Reppe, W.; Sweckendick, W.J.,
Cyclizing Polymerization of Acetylene III. Benzene, Benzene Derivatives and Hydroaromatic Compounds,
Justus Liebigs Ann. Chem., 1948, 560, 104-16. [all data]
White and Bishop, 1940
White, A.H.; Bishop, W.S.,
Dielectric Evidence of Molecular Rotation in the Crystals of Certain Non-aromatic Compounds,
J. Am. Chem. Soc., 1940, 62, 8-16. [all data]
Domanska, Morawski, et al., 2008
Domanska, Urszula; Morawski, Piotr; Piekarska, Maria,
Solubility of perfumery and fragrance raw materials based on cyclohexane in 1-octanol under ambient and high pressures up to 900MPa,
The Journal of Chemical Thermodynamics, 2008, 40, 4, 710-717, https://doi.org/10.1016/j.jct.2007.10.004
. [all data]
Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P.,
Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria,
Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092
. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Notes
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- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfusH Enthalpy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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