trans-2-butene
(E)-but-2-ène · trans-2-ブテン · (E)-2-buten · 反-2-丁烯 · trans-2-Büten
| CAS | 624-64-6 |
|---|---|
| EC | 203-452-9 |
| UN | 1012 |
| Formula | C4H8 |
| Molar mass | 56.11 g/mol |
| LEL | 1.6 % vol |
| UEL | 10.0 % vol |
| Autoignition temperature | 324 °C |
| Temperature class | T2 |
| Relative density of the gas or vapour (air = 1) | 1.94 |
| GHS | Danger · H220 |
2-butene appears as a colorless liquefied petroleum gas. Asphyxiate gas. Flammability limits in air 1.8-9.7% by volume.