Pyridine, 4-ethyl-
- Formula: C7H9N
- Molecular weight: 107.1531
- IUPAC Standard InChI: InChI=1S/C7H9N/c1-2-7-3-5-8-6-4-7/h3-6H,2H2,1H3
- IUPAC Standard InChIKey: VJXRKZJMGVSXPX-UHFFFAOYSA-N
- CAS Registry Number: 536-75-4
- 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: γ-Ethylpyridine; 4-Ethylpyridine; 4-(C2H5)-Pyridine
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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
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 441.5 | K | N/A | Weast and Grasselli, 1989 | BS |
| Tboil | 441.4 | K | N/A | Petro and Smyth, 1957 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tboil | 438.4 | K | N/A | Cox, 1954 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tboil | 438.15 | K | N/A | Hackmann, Wibaut, et al., 1943 | Uncertainty assigned by TRC = 1.5 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 182.65 | K | N/A | Brown and Murphey, 1951 | Uncertainty assigned by TRC = 0.5 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 46.3 ± 0.7 | kJ/mol | C | Morais, Miranda, et al., 2003 | AC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 45.3 | 348. | A | Stephenson and Malanowski, 1987 | Based on data from 333. to 372. K. See also Kkykj and Repas, 1973.; AC |
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]
Petro and Smyth, 1957
Petro, A.J.; Smyth, C.P.,
Microwave absorption and molecular structure in liquids. XX. dielectric relaxation times and molecular shapes of some substituted benzenes and pyridines,
J. Am. Chem. Soc., 1957, 79, 6142. [all data]
Cox, 1954
Cox, J.D.,
Phase relationships in the pyridine series. part IV. the miscibility of the ethylpyridines and dimethylpyridines with water,
J. Chem. Soc., 1954, 1954, 3183-3187. [all data]
Hackmann, Wibaut, et al., 1943
Hackmann, J.Th.; Wibaut, J.P.; Gitsels, H.P.L.,
Basic N compounds from cracked distillates of California petroleum,
Recl. Trav. Chim. Pays-Bas, 1943, 62, 229. [all data]
Brown and Murphey, 1951
Brown, H.C.; Murphey, W.A.,
A convenient synthesis of the monoalkylpyridines; a new prototropic reaction of 3-picoline,
J. Am. Chem. Soc., 1951, 73, 3308. [all data]
Morais, Miranda, et al., 2003
Morais, Victor M.F.; Miranda, Margarida S.; Matos, M. Agostinha R.,
Thermochemical study of the ethylpyridine and ethylpyrazine isomers,
Org. Biomol. Chem., 2003, 1, 23, 4329-712, https://doi.org/10.1039/b308097h
. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) 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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