Pyridine, 5-ethyl-2-methyl-
- Formula: C8H11N
- Molecular weight: 121.1796
- IUPAC Standard InChI: InChI=1S/C8H11N/c1-3-8-5-4-7(2)9-6-8/h4-6H,3H2,1-2H3
- IUPAC Standard InChIKey: NTSLROIKFLNUIJ-UHFFFAOYSA-N
- CAS Registry Number: 104-90-5
- 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: 2-Picoline, 5-ethyl-; Aldehydecollidine; Aldehydine; Aldehydkollidin; MEP; 2-Methyl-5-ethylpyridine; 3-Ethyl-6-methylpyridine; 5-Ethyl-α-picoline; 5-Ethyl-2-methylpyridine; 5-Ethyl-2-picoline; 6-Methyl-3-ethylpyridine; 2,5-Aldehydine; UN 2300; Collidine, aldehydecollidine; NSC 1984; Pyridine, 2-methyl-5-ethyl
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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 451.5 | K | N/A | Weast and Grasselli, 1989 | BS |
| Tboil | 449.15 | K | N/A | Farberov, Kut'in, et al., 1961 | Uncertainty assigned by TRC = 2. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 46.3 ± 0.4 | kJ/mol | V | Gubareva, Gerasimov, et al., 1992 | ALS |
| ΔvapH° | 46.3 | kJ/mol | N/A | Gubareva, Gerasimov, et al., 1992 | DRB |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 45.4 | 363. | A | Stephenson and Malanowski, 1987 | Based on data from 348. to 451. K.; AC |
| 51.6 | 264. | GS | Van de Rostyne and Prausnitz, 1980 | Based on data from 253. to 276. 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 |
|---|---|---|---|---|---|
| 325.1 to 449.81 | 2.75364 | 805.918 | -159.98 | Frolov, Loginova, et al., 1961 | Coefficents calculated by NIST from author's data. |
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.
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]
Farberov, Kut'in, et al., 1961
Farberov, M.I.; Kut'in, A.M.; Ustavshchikov, V.F.,
The conditions of 2-methyl-5-vinylprydine synthesis,
Zh. Prikl. Khim. (Leningrad), 1961, 34, 632. [all data]
Gubareva, Gerasimov, et al., 1992
Gubareva, A.I.; Gerasimov, P.A.; Tarbeyeva, N.A.; Kunderenko, V.M.,
Physicochemical Properties of 2-methyl-5-ethylpyridine,
Khim.-Farm. Zh., 1992, 26, 40-41. [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]
Van de Rostyne and Prausnitz, 1980
Van de Rostyne, Catherine; Prausnitz, John M.,
Vapor pressures of some nitrogen-containing, coal-derived liquids,
J. Chem. Eng. Data, 1980, 25, 1, 1-3, https://doi.org/10.1021/je60084a008
. [all data]
Frolov, Loginova, et al., 1961
Frolov, A.F.; Loginova, M.A.; Kiselev, M.M.,
Saturated Vapor Pressure and Vapor-Liquid Equilibrium of the System 2-Methyl-5-Vinylpyridine-2-Methyl-5-Ethylpyridine,
Zh. Fiz. Khim., 1961, 35, 8, 1784-1788. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point 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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