| 2-butine; 2-butyne; but-2-yne; butyne-2; crotonylene; Dβ-butyne; dimethylacetylene | |
| Links: | 📏 NIST, 📖 PubMed, 📖Houben-Weyl, 2. Band (Dimethylacetylen); p. 819, |
| CAS RN: | [503-17-3] |
| Formula: | C4H6; 54.09 g/mol |
| InChiKey: | XNMQEEKYCVKGBD-UHFFFAOYSA-N |
| SMILES: | CC#CC |
| Density: | 0.694 g/mL |
| Molar volume: | 78.0 mL/mol |
| Refractive index: | 1.394 |
| Molecular refractive power: | 18.65 mL/mol |
| Melting point: | -24 °C |
| Boiling point: | 27 °C |
| Vapour pressure: | 79 Torr |
| Antoine equation P(Torr) vs T(°C) | |
| Critical temperature: | 216 °C |
| Log10 partition octanol / water: | 1.46 |