Phenol, 2-methoxy-
- Formula: C7H8O2
- Molecular weight: 124.1372
- IUPAC Standard InChIKey: LHGVFZTZFXWLCP-UHFFFAOYSA-N
- CAS Registry Number: 90-05-1
- 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: Phenol, o-methoxy-; o-Guaiacol; o-Hydroxyanisole; o-Methoxyphenol; Anastil; Guaiacol; Guaiastil; Guaicolina; Guajol; Guasol; O-Methyl catechol; Pyrocatechol monomethyl ether; Pyroguaiac acid; 1-Hydroxy-2-methoxybenzene; 2-Hydroxyanisole; 2-Methoxyphenol; Guaicol; Guajakol; Methylcatechol; Methylcatachol; Catechol monomethyl ether; o-Guiacol; ortho-Guaiacol; NSC 3815; 2-methoxyphenol (guaiacol); 2-Methoxy phenol (guiacol); guiacol; guaiacol (2-methoxyphenol)
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Phase change data
Go To: Top, 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 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 | 478.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 478.20 | K | N/A | Lecat, 1947 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tboil | 478.20 | K | N/A | Lecat, 1927 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 478.3 | K | N/A | Lecat, 1926 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 478.15 | K | N/A | Clever and Muthmann, 1896 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 301.15 | K | N/A | Lindberg and Stenholm, 1966 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 301.25 | K | N/A | Philip and Smith, 1905 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 301.45 | K | N/A | Clever and Muthmann, 1896 | Uncertainty assigned by TRC = 0.6 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 62.6 ± 0.5 | kJ/mol | C | Matos, Miranda, et al., 2003 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
52.7 | 393. | A | Stephenson and Malanowski, 1987 | Based on data from 378. to 479. K. See also Kkykj and Repas, 1973.; AC |
52.7 | 370. | N/A | von Terres, Gebert, et al., 1955 | Based on data from 355. to 478. 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 |
---|---|---|---|---|---|
355. to 478. | 4.36309 | 1753.447 | -74.81 | von Terres, Gebert, et al., 1955, 2 | Coefficents calculated by NIST from author's data. |
325.6 to 478. | 5.5607 | 2484.596 | -31.035 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Reaction thermochemistry data
Go To: Top, Phase change 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: 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
C7H7O2- + =
By formula: C7H7O2- + H+ = C7H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1433. ± 8.4 | kJ/mol | IMRE | Kebarle and McMahon, 1977 | gas phase |
Gas phase ion energetics data
Go To: Top, Phase change data, Reaction thermochemistry 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: John E. Bartmess
View reactions leading to C7H8O2+ (ion structure unspecified)
De-protonation reactions
C7H7O2- + =
By formula: C7H7O2- + H+ = C7H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 1433. ± 8.4 | kJ/mol | IMRE | Kebarle and McMahon, 1977 | gas phase |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Lecat, 1947
Lecat, M.,
Orthobaric Azeotropes of Sulfides,
Bull. Cl. Sci., Acad. R. Belg., 1947, 33, 160-82. [all data]
Lecat, 1927
Lecat, M.,
New binary azeotropes: 7th list,
Ann. Soc. Sci. Bruxelles, Ser. B, 1927, 47, 108-14. [all data]
Lecat, 1926
Lecat, M.,
New binary azeotropes: 3rd list,
Ann. Soc. Sci. Bruxelles, Ser. B, 1926, 45, 284-94. [all data]
Clever and Muthmann, 1896
Clever; Muthmann,
Chem. Ber., 1896, 29, 340. [all data]
Lindberg and Stenholm, 1966
Lindberg, J.J.; Stenholm, V.,
Viscosities, Densities, and Related Properties of Binary Mixtures Containing Dimethyl Sulphoxide and Mono-Subst. Benzenes or Guaiacol,
Suom. Kemistiseuran Tied., 1966, 75, 22. [all data]
Philip and Smith, 1905
Philip, J.C.; Smith, S.H.,
Researches on the freezing points of binary mixtures of organic substances: the behavior of the dihydric phenols towards p-toluidine,alpha-naphthylamine, and picric acid,
J. Chem. Soc., 1905, 87, 1735. [all data]
Matos, Miranda, et al., 2003
Matos, M. Agostinha R.; Miranda, Margarida S.; Morais, Victor M.F.,
Thermochemical Study of the Methoxy- and Dimethoxyphenol Isomers,
J. Chem. Eng. Data, 2003, 48, 3, 669-679, https://doi.org/10.1021/je025641j
. [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]
Kkykj and Repas, 1973
Kkykj, J.; Repas, M.,
Petrochemia, 1973, 13, 179. [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]
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]
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]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔrG° Free energy of reaction 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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