Ethylene
CAS 74-85-1C2H428.05 g/mol
Ethene is a gas molecular entity and an alkene. It has a role as a plant hormone and a refrigerant.
IUPAC: ethene
PubChem
Physical & Chemical Properties
| Melting Point | -272.4 °F (USCG, 1999) |
| Boiling Point | -154.7 °F at 760 mmHg (USCG, 1999) |
| Density | 0.569 at -154.84 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | In water, 131 mg/L at 25 °C |
| Flash Point | -213 °F (approx.) (USCG, 1999) |
| Vapor Pressure | Vapor pressure 4,040 kPa (-1.5 °C) |
| Appearance | 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. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. Can cause explosion. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2901
Data: UN Comtrade
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