Phenol, 2-(1,1-dimethylethyl)-4-methyl-
- Formula: C11H16O
- Molecular weight: 164.2441
- IUPAC Standard InChIKey: IKEHOXWJQXIQAG-UHFFFAOYSA-N
- CAS Registry Number: 2409-55-4
- 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: p-Cresol, 2-tert-butyl-; o-tert-Butyl-p-cresol; 2-tert-Butyl-p-Cresol; 2-tert-Butyl-4-Methylphenol; 4-Methyl-2-tert-butylphenol; 1-Hydroxy-2-tert-butyl-4-methylbenzene; 2-tert-Butyl-4-methyl-1-phenol; 2-Terc.butyl-p-kresol; 2-t-Butyl-p-cresol; 2-t-Butyl-4-methylphenol; 2-(1,1-Dimethylethyl)-4-methyl-phenol; 2-tert-Butyl-4-cresol; 4-Methyl-2-(1,1-dimethylethyl)phenol; 4-Methyl-6-t-butylphenol; NSC 60301; 2-(1,1'-dimethylethyl)-4-methylphenol
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -218. | kJ/mol | Semi | Stewart, 2004 | |
ΔfH°gas | -207.0 ± 3.2 | kJ/mol | Eqk | Verevkin, Nesterova, et al., 1984 | ALS |
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 | 510.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 325.16 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 325.45 | K | N/A | Witschonke, 1954 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 65.7 ± 0.3 | kJ/mol | GS | Verevkin, 1999 | Based on data from 327. to 358. K.; AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 82.9 ± 0.5 | kJ/mol | GS | Verevkin, 1999 | Based on data from 288. to 318. K.; AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
63.0 ± 0.3 | 343. | GS | Verevkin, 1999 | Based on data from 327. to 358. K.; AC |
58.9 | 400. | A | Stephenson and Malanowski, 1987 | Based on data from 385. to 517. K.; AC |
57.7 | 348. | N/A | Stage, Müller, et al., 1953 | Based on data from 343. to 507. K.; AC |
55.7 | 373. | N/A | Stage, Müller, et al., 1953 | Based on data from 343. to 507. K.; AC |
52.6 | 423. | N/A | Stage, Müller, et al., 1953 | Based on data from 343. to 507. K.; AC |
48.5 | 473. | N/A | Stage, Müller, et al., 1953 | Based on data from 343. to 507. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
343. to 505.8 | 5.54389 | 2635.051 | -30.066 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
82.6 ± 0.5 | 303. | GS | Verevkin, 1999 | Based on data from 288. to 318. K.; AC |
77.4 | 284. | A | Stephenson and Malanowski, 1987 | Based on data from 274. to 294. K. See also Aihara, 1960.; AC |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Phase change data, 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 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 | Sadtler Research Labs Under US-EPA Contract |
State | gas |
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 | Japan AIST/NIMC Database- Spectrum MS-NW-6144 |
NIST MS number | 228732 |
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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | SE-30 | 250. | 1345. | Verevkin, Nesterov, et al., 1990 | He, NAWHMDS; Column length: 3. m |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | BPX-5 | 1387. | Aaslyng, Elmore, et al., 1998 | 50. m/0.32 mm/0.50 μm, He, 4. K/min; Tstart: 40. C; Tend: 280. C |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | VF-5MS | 1352.2 | Mjøs, Meier, et al., 2006 | 50. m/0.25 mm/0.25 μm, He; Program: 60C(2min) => 30C/min => 100C => 1C/min => |
Capillary | VF-5MS | 1353.1 | Mjøs, Meier, et al., 2006 | 50. m/0.25 mm/0.25 μm, He; Program: 60C(2min) => 30C/min => 100C => 2C/min => |
Capillary | VF-5MS | 1355. | Mjøs, Meier, et al., 2006 | 50. m/0.25 mm/0.25 μm, He; Program: 60C(2min) => 30C/min => 100C => 4C/min => |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 2235. | Chung, 1999 | 60. m/0.25 mm/0.25 μm, He, 35. C @ 5. min, 2. K/min, 195. C @ 90. min |
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.
Stewart, 2004
Stewart, J.J.P.,
Comparison of the accuracy of semiempirical and some DFT methods for predicting heats of formation,
J. Mol. Model, 2004, 10, 1, 6-10, https://doi.org/10.1007/s00894-003-0157-6
. [all data]
Verevkin, Nesterova, et al., 1984
Verevkin, S.P.; Nesterova, T.N.; Rozhnov, A.M.,
The equilibrium in the dealkylation of o-t-butyl-p-cresol,
Russ. J. Phys. Chem. (Engl. Transl.), 1984, 58, 284. [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]
Witschonke, 1954
Witschonke, C.R.,
Freezing point and purity data for some organic compounds,
Anal. Chem., 1954, 26, 562-4. [all data]
Verevkin, 1999
Verevkin, S.P.,
Thermochemistry of phenols: quantification of theortho-,para-, andmeta-interactions in tert-alkyl substituted phenols,
The Journal of Chemical Thermodynamics, 1999, 31, 5, 559-585, https://doi.org/10.1006/jcht.1998.0459
. [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]
Stage, Müller, et al., 1953
Stage, H.; Müller, E.; Faldix, P.,
Erdol u Kohle, 1953, 6, 375. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Aihara, 1960
Aihara, Ariyuki,
Estimation of the Energy of Hydrogen Bonds Formed in Crystals. II. Phenols,
Bull. Chem. Soc. Jpn., 1960, 33, 2, 194-200, https://doi.org/10.1246/bcsj.33.194
. [all data]
Verevkin, Nesterov, et al., 1990
Verevkin, S.P.; Nesterov, O.A.; Rempel, P.D.; Synkova, N.V.; Shashkin, N.P.,
Chromatographic determination of the products of condensation of alkylphenols with formic aldehyde,
Zh. Anal. Khim., 1990, 43, 760-761. [all data]
Aaslyng, Elmore, et al., 1998
Aaslyng, M.D.; Elmore, J.S.; Mottram, D.S.,
Comparison of the aroma characteristics of acid-hydrolyzed and enzyme-hydrolyzed vegetable proteins produced from soy,
J. Agric. Food Chem., 1998, 46, 12, 5225-5231, https://doi.org/10.1021/jf9806816
. [all data]
Mjøs, Meier, et al., 2006
Mjøs, S.A.; Meier, S.; Boitsov, S.,
Alkylphenol retention indices,
J. Chromatogr. A, 2006, 1123, 1, 98-105, https://doi.org/10.1016/j.chroma.2006.05.002
. [all data]
Chung, 1999
Chung, H.Y.,
Volatile components in crabmeats of Charybdis feriatus,
J. Agric. Food Chem., 1999, 47, 6, 2280-2287, https://doi.org/10.1021/jf981027t
. [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:
Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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