Ethylene is a colorless flammable gas at normal pressure and temperature with lively properties. Its boiling point is -103.71°C, critical temperature is 9.90°C, critical pressure is 4.95MPa, and critical density is 0.227kg/L.

Ethylene is one of the most basic raw materials of petrochemical industry. In terms of synthetic materials, ethylene is widely used in the production of polyethylene, vinyl chloride, polyvinyl chloride, ethylbenzene, etc. In terms of organic synthesis, it is widely used in the synthesis of ethanol, acetic acid, propionic acid and its derivatives and other basic organic synthesis raw materials .

Ethylene is also an important basic raw material for organic chemicals, mainly used in the production of polyethylene, ethylene-propylene rubber, and polyvinyl chloride.