Phenol, 2,4,6-trimethyl-
- Formula: C9H12O
- Molecular weight: 136.1910
- IUPAC Standard InChIKey: BPRYUXCVCCNUFE-UHFFFAOYSA-N
- CAS Registry Number: 527-60-6
- 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: Mesitol; Mesityl alcohol; 1-Hydroxy-2,4,6-trimethylbenzene; 2-Hydroxymesitylene; 2,4,6-Trimethylphenol; 2,4,6-Trimetylofenol
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Gas phase thermochemistry data
Go To: Top, Condensed 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -63.03 | kcal/mol | N/A | Khodzhaeva, Iskhakova, et al., 1991 | Value computed using ΔfHsolid° value of -356.8 kj/mol from Khodzhaeva, Iskhakova, et al., 1991 and ΔsubH° value of 93.1 kj/mol from Bertholon, Giray, et al., 1971.; DRB |
ΔfH°gas | -42.29 | kcal/mol | Ccb | Bertholon, Giray, et al., 1971 | ALS |
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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | Ccb | Khodzhaeva, Iskhakova, et al., 1991 | uncertain value: -85.287 kcal/mol; Undetermined error; ALS | ||
ΔfH°solid | -65. | kcal/mol | Ccb | Bertholon, Giray, et al., 1971 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | Ccb | Khodzhaeva, Iskhakova, et al., 1991 | uncertain value: -117. ± 15. kcal/mol; Undetermined error; ALS | ||
ΔcH°solid | -1191. | kcal/mol | Ccb | Bertholon, Giray, et al., 1971 | Corresponding ΔfHºsolid = -65. kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 51.417 | cal/mol*K | N/A | Khodzhaeva, Iskhakova, et al., 1991 | DH |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
50.937 | 298.15 | Khodzhaeva, Iskhakova, et al., 1991 | T = 90 to 320 K. Cp(c) = -460.08(T/100)-2 + 1250.90(T/100)-1 - 1258.35 + 682.09(T/100) - 138.79(T/100)2 + 11.79(T/100)3 J/mol*K.; DH |
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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 493.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Tboil | 494.15 | K | N/A | Hey, 1961 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 344. ± 3. | K | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 19.8 ± 0.07 | kcal/mol | GS | Verevkin, 1999 | AC |
ΔsubH° | 22.7 | kcal/mol | C | Bertholon, Giray, et al., 1971, 2 | See also Verevkin, 1999.; AC |
ΔsubH° | 22.71 | kcal/mol | C | Bertholon, Giray, et al., 1971 | ALS |
ΔsubH° | 22.3 | kcal/mol | N/A | Bertholon, Giray, et al., 1971 | DRB |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.7 | 382. | A | Stephenson and Malanowski, 1987 | Based on data from 367. to 494. K. See also von Terres, Gebert, et al., 1955.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
367. to 493.8 | 4.50984 | 1917.363 | -68.384 | von Terres, Gebert, et al., 1955, 2 | Coefficents calculated by NIST from author's data. |
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 |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, 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 | D.HENNEBERG, MAX-PLANCK INSTITUTE, MULHEIM, WEST GERMANY |
NIST MS number | 61910 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Khodzhaeva, Iskhakova, et al., 1991
Khodzhaeva, M.G.; Iskhakova, B.G.; Abdusalyamov, N.N.; Ismailov, T.S.,
Heat capacity and thermodynamics of 2,4,6-trimethylphenol,
Uzb. Khim. Zh., 1991, 27-29. [all data]
Bertholon, Giray, et al., 1971
Bertholon, G.; Giray, M.; Perrin, R.; Vincent-Falquet-Berny, M.F.,
No. 532. - Etude physicochimique des phenols. OX. - Ethanlpies de combustion et energies de resonance des alcoyl et aryphenols,
Bull. Soc. Chim. France, 1971, 3180-3187. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Hey, 1961
Hey, D.H.,
J. Chem. Soc., 1961, 1961, 1581. [all data]
Verevkin, 1999
Verevkin, Sergey P.,
Thermochemistry of phenols: buttress effects in sterically hindered phenols,
The Journal of Chemical Thermodynamics, 1999, 31, 11, 1397-1416, https://doi.org/10.1006/jcht.1999.0466
. [all data]
Bertholon, Giray, et al., 1971, 2
Bertholon, G.; Giray, M.; Perrin, R.; Vincent-Falquet-Berny, M.F.,
Bull. Soc. Chim. Fr., 1971, 9, 3180. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
von Terres, Gebert, et al., 1955
von Terres, E.; Gebert, F.; Hulsemann, H.; Petereit, H.; Toepsch, H.; Ruppert, W.,
Brennst.-Chem., 1955, 36, 272. [all data]
von Terres, Gebert, et al., 1955, 2
von Terres, E.; Gebert, F.; Hulsemann, H.; Petereit, H.; Toepsch, H.; Ruppert, W.,
Zur Kenntnis der physikalisch-chemischen Grundlagen der Gewinnung und Zerlegung der Phenolfraktionen von Steinkohlenteer und Braunkohlenschwelteer. IV. Mitteilung Die Dampfdrucke von Phenol und Phenolderivaten,
Brennst.-Chem., 1955, 36, 272-274. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) Tboil Boiling point Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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