Phenol, 2,3-dimethyl-
- Formula: C8H10O
- Molecular weight: 122.1644
- IUPAC Standard InChIKey: QWBBPBRQALCEIZ-UHFFFAOYSA-N
- CAS Registry Number: 526-75-0
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 2,3-Xylenol; o-Xylenol; 1-Hydroxy-2,3-dimethylbenzene; 2,3-Dimethylphenol; 1,2-Dimethyl-3-hydroxybenzene; NSC 62011
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Phase change data
Go To: Top, 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:
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.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 490. ± 4. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 347. ± 2. | K | AVG | N/A | Average of 14 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 722.85 | K | N/A | Ambrose, 1963 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 84.0 ± 1.0 | kJ/mol | V | Andon, Biddiscombe, et al., 1960 | ALS |
ΔsubH° | 84.0 | kJ/mol | N/A | Andon, Biddiscombe, et al., 1960 | DRB |
ΔsubH° | 59.4 ± 0.8 | kJ/mol | V | Wolf and Weghofer, 1938 | ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
52.1 | 448. | A,GS,EB | Stephenson and Malanowski, 1987 | Based on data from 433. to 492. K. See also Andon, Biddiscombe, et al., 1960, 2.; 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 |
---|---|---|---|---|---|
422.50 to 491.62 | 2.40468 | 582.758 | -247.50 | Andon, Biddiscombe, et al., 1960 | Coefficents calculated by NIST from author's data. |
357. to 492. | 4.65079 | 2147.312 | -28.347 | von Terres, Gebert, et al., 1955 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
84. ± 1.0 | 283. to 323. | GS | Andon, Biddiscombe, et al., 1960, 2 | See also Cox and Pilcher, 1970 and Stephenson and Malanowski, 1987.; AC |
61.5 ± 0.8 | 310. | V | Wolf and Weghofer, 1938 | ALS |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
21.024 | 346.0 | N/A | Poeti, Fanelli, et al., 1982 | DH |
20.29 | 345.8 | DSC | Jamróz, Palczewska-Tulinska, et al., 1998 | AC |
21.02 | 346. | N/A | Acree, 1991 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
60.76 | 346.0 | Poeti, Fanelli, et al., 1982 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ambrose, 1963
Ambrose, D.,
Critical Temperatures of Some Phenols and Other Organic Compounds,
Trans. Faraday Soc., 1963, 59, 1988. [all data]
Andon, Biddiscombe, et al., 1960
Andon, R.J.L.; Biddiscombe, D.P.; Cox, J.D.; Handley, R.; Harrop, D.; Herington, E.F.G.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. Part I. Preparation and physical properties of pure phenol, cresols, and xylenols,
J. Chem. Soc., 1960, 5246-5254. [all data]
Wolf and Weghofer, 1938
Wolf, K.L.; Weghofer, H.,
Uber sublimationswarmen,
Z. Phys. Chem., 1938, 39, 194-208. [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]
Andon, Biddiscombe, et al., 1960, 2
Andon, R.J.L.; Biddiscombe, D.P.; Cox, J.D.; Handley, R.; Harrop, D.; Herington, E.F.G.; Martin, J.F.,
1009. Thermodynamic properties of organic oxygen compounds. Part I. Preparation and physical properties of pure phenol, cresols, and xylenols,
J. Chem. Soc., 1960, 5246, https://doi.org/10.1039/jr9600005246
. [all data]
von Terres, Gebert, et al., 1955
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]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]
Poeti, Fanelli, et al., 1982
Poeti, G.; Fanelli, E.; Braghetti, M.,
A differential scanning calorimetric study of some phenol derivatives,
J. Therm. Anal., 1982, 24(2), 273-279. [all data]
Jamróz, Palczewska-Tulinska, et al., 1998
Jamróz, Malgorzata E.; Palczewska-Tulinska, Marcela; Wyrzykowska-Stankiewicz, Danuta; Szafranski, Andrzej M.; Polaczek, Jerzy; Dobrowolski, Jan Cz.; Jamróz, Michal H.; Mazurek, Aleksander P.,
The urea--phenol(s) systems,
Fluid Phase Equilibria, 1998, 152, 2, 307-326, https://doi.org/10.1016/S0378-3812(98)90206-0
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation 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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