4-Ethyltoluene
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| Names | |
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IUPAC name
1-Ethyl-4-methylbenzene
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| Other names
p-Ethylmethylbenzene, p-Ethyltoluene
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| Identifiers | |
| Properties | |
| C9H12 | |
| Molar mass | 120.20 g·mol−1 |
| Appearance | colorless liquid |
| Density | 0.861 g/cm3 |
| Boiling point | 162 °C (324 °F; 435 K) |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
4-Ethyltoluene is an organic compound with the formula CH3C6H4C2H5. It is one of three isomers of ethyltoluene, the other two isomers being 3-ethyltoluene and 2-ethyltoluene. All are colorless liquids and all are used for the production of specialty polystyrenes.
Ethyltoluene is produced by ethylation of toluene:
Over typical acid catalysts, this process gives a mixture of the 2-, 3-, and 4- isomers. Using a modified zeolite catalyst, the alkylation is shape-selective for the 4- isomer.
4-Ethyltoluene is subjected dehydrogenation to give 4-vinyltoluene.
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