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Phenylacetylene
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| Names | |
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| Preferred IUPAC name
Ethynylbenzene | |
| Other names
Phenylacetylene
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| Identifiers | |
3D model (JSmol)
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| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.007.861 |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C8H6 | |
| Molar mass | 102.133 g/mol |
| Density | 0.93 g/cm3 |
| Melting point | −45 °C (−49 °F; 228 K) |
| Boiling point | 142 to 144 °C (288 to 291 °F; 415 to 417 K) |
| Acidity (pKa) | 28.7 (DMSO),[1] 23.2 (aq, extrapolated)[2] |
| -72.01·10−6 cm3/mol | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless, viscous liquid. In research, it is sometimes used as an analog for acetylene; being a liquid, it is easier to handle than acetylene gas.
- ^ Bordwell, F.G. (1988). "Equilibrium acidities in dimethyl sulfoxide solution". Acc. Chem. Res. 21: 456–463. doi:10.1021/ar00156a004.
- ^ Streitwieser, A. Jr.; Ruben, D.M.E (1971). "Acidity of hydrocarbons. XXXV. Equilibrium acidities of phenylacetylene and tert-butylacetylene in cyclohexylamine". J. Am. Chem. Soc. 93: 1794–1795. doi:10.1021/ja00736a045.
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