Pyridine, 5-ethenyl-2-methyl-
- Formula: C8H9N
- Molecular weight: 119.1638
- IUPAC Standard InChI: InChI=1S/C8H9N/c1-3-8-5-4-7(2)9-6-8/h3-6H,1H2,2H3
- IUPAC Standard InChIKey: VJOWMORERYNYON-UHFFFAOYSA-N
- CAS Registry Number: 140-76-1
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 2-Picoline, 5-vinyl-; Pyridine, 2-methyl-5-vinyl-; 2-Methyl-5-vinylpyridine; 2,5-Methylvinylpyridine; 5-Vinyl-2-picoline; 2-Methyl-5-vinylpridine
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Phase change data
Go To: Top, 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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 13.2 | 357. | A | Stephenson and Malanowski, 1987 | Based on data from 342. to 457. K.; AC |
| 13.0 | 357. | N/A | Frolov, Loginova, et al., 1961 | Based on data from 342. to 457. K. See also Boublik, Fried, et al., 1984.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 342.77 to 456.34 | 3.47283 | 1135.712 | -129.168 | Frolov, Loginova, et al., 1961, 2 | Coefficents calculated by NIST from author's data. |
Gas Chromatography
Go To: Top, Phase change 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5 | 1040. | Kubec, Drhová, et al., 1999 | 30. m/0.25 mm/0.25 μm, N2, 40. C @ 3. min, 4. K/min, 240. C @ 10. min |
| Capillary | HP-5 | 1040. | Kubec, Drhová, et al., 1998 | 30. m/0.25 mm/0.25 μm, N2, 40. C @ 3. min, 4. K/min, 240. C @ 10. min |
Normal alkane RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-Innowax | 1509. | Kubec, Drhová, et al., 1999 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 3. min, 4. K/min, 190. C @ 10. min |
| Capillary | HP-Innowax | 1509. | Kubec, Drhová, et al., 1998 | 30. m/0.25 mm/0.25 μm, N2, 40. C @ 3. min, 4. K/min, 190. C @ 10. min |
| Capillary | DB-Wax | 1509. | Umano, Hagi, et al., 1995 | He, 40. C @ 2. min, 2. K/min; Column length: 60. m; Column diameter: 0.25 mm; Tend: 200. C |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Frolov, Loginova, et al., 1961
Frolov, A.F.; Loginova, M.A.; Kiseleva, M.M.,
Zh. Phys. Khim., 1961, 35, 1784. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Frolov, Loginova, et al., 1961, 2
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]
Kubec, Drhová, et al., 1999
Kubec, R.; Drhová, V.; Velísek, J.,
Volatile compounds thermally generated from S-propylcysteine and S-propylcysteine sulfoxide - aroma precursors of Allium vegetables,
J. Agric. Food Chem., 1999, 47, 3, 1132-1138, https://doi.org/10.1021/jf980974z
. [all data]
Kubec, Drhová, et al., 1998
Kubec, R.; Drhová, V.; Velísek, J.,
Thermal degradation of S-methylcysteine and its sulfoxide-important flavor precursors of Bassica and Allium vegetables,
J. Agric. Food Chem., 1998, 46, 10, 4334-4340, https://doi.org/10.1021/jf980379x
. [all data]
Umano, Hagi, et al., 1995
Umano, K.; Hagi, Y.; Nakahara, K.; Shyoji, A.; Shibamoto, T.,
Volatile chemicals formed in the headspace of a heated D-glucose/L-cysteine Maillard model system,
J. Agric. Food Chem., 1995, 43, 8, 2212-2218, https://doi.org/10.1021/jf00056a046
. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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