Ethylene
Etilene · Этилен · אתן · إيثيلين · Etilen · Етилен · Ethen · Αιθένιο · Etileno · اتیلن · इथिलीन · Etilén
| CAS | 74-85-1 |
|---|---|
| EC | 200-815-3 |
| UN | 1962 |
| Formula | C2H4 |
| Molar mass | 28.05 g/mol |
| LEL | 2.3 % vol |
| UEL | 36.0 % vol |
| Autoignition temperature | 440 °C |
| Temperature class | T2 |
| Gas group | IIB |
| Relative density of the gas or vapour (air = 1) | 0.968 |
| GHS | Danger · 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.