Pyridine, 4-methyl-
- Formula: C6H7N
- Molecular weight: 93.1265
- IUPAC Standard InChIKey: FKNQCJSGGFJEIZ-UHFFFAOYSA-N
- CAS Registry Number: 108-89-4
- 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: 4-Picoline; γ-Methylpyridine; γ-Picoline; p-Methylpyridine; p-Picoline; Ba 35846; 4-Methylpyridine; para-Methylpyridine; gamma-Picoline; NSC 18252
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Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.)
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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:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
ΔvapH° (kcal/mol) | Method | Reference | Comment |
---|---|---|---|
10.71 | N/A | Majer and Svoboda, 1985 | |
10.7 | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 323. to 373. K.; AC |
10.72 | V | Majer, Svoboda, et al., 1984 | ALS |
10.7 ± 0.02 | C | Majer, Svoboda, et al., 1984 | AC |
10.7 ± 0.02 | C | Hossenlopp and Scott, 1981 | AC |
10.65 ± 0.05 | V | Good, 1972 | ALS |
10.7 | N/A | Good, 1972 | DRB |
10.834 | V | Andon, Cox, et al., 1957 | ALS |
10.9 | N/A | Cox, Challoner, et al., 1954 | DRB |
References
Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G.,
Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times,
Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3
. [all data]
Majer, Svoboda, et al., 1984
Majer, V.; Svoboda, V.; Lencka, M.,
Enthalpies of vaporization and cohesive energies of pyridine and isomeric methylpyridines,
J. Chem. Thermodyn., 1984, 16, 1019-1024. [all data]
Hossenlopp and Scott, 1981
Hossenlopp, I.A.; Scott, D.W.,
Vapor heat capacities and enthalpies of vaporizaiton of six organic compounds,
J. Chem. Thermodyn., 1981, 13, 405-414. [all data]
Good, 1972
Good, W.D.,
Enthalpies of combustion of nine organic nitrogen compounds related to petroleum,
J. Chem. Eng. Data, 1972, 17, 28-31. [all data]
Andon, Cox, et al., 1957
Andon, R.J.L.; Cox, J.D.; Herington, E.F.G.; Martin, J.F.,
The second virial coefficients of pyridine and benzene, and certain of their methyl homologues,
Trans. Faraday Soc., 1957, 53, 1074. [all data]
Cox, Challoner, et al., 1954
Cox, J.D.; Challoner, A.R.; Meetham, A.R.,
The heats of combustion of pyridine and certain of its derivatives,
J. Chem. Soc., 1954, 265-271. [all data]
Notes
Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), References
- Symbols used in this document:
ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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