乙烯
Ethylene · Etilene · Этилен · אתן · إيثيلين · Etilen · Етилен · Ethen · Αιθένιο · Etileno · اتیلن · Éthylène
| CAS | 74-85-1 |
|---|---|
| EC | 200-815-3 |
| UN | 1962 |
| 分子式 | C2H4 |
| 摩尔质量 | 28.05 g/mol |
| 爆炸下限（LEL） | 2.3 % vol |
| 爆炸上限（UEL） | 36.0 % vol |
| 引燃温度 | 440 °C |
| 温度组别 | T2 |
| 气体组别 | IIB |
| 气体或蒸气的相对密度（空气 = 1） | 0.968 |
| GHS | 危险 · H220, H336 |
Ethene is a gas molecular entity and an alkene. It has a role as a plant hormone and a refrigerant. Ethylene appears as a colorless gas with a sweet odor and taste. It is lighter than air. It is easily ignited and a flame can easily flash back to the source of the leak.