Application Manual

Gas Properties - Ethylene

Gas Name
Chemical Formula
Chemical Family
Ethylene
C
2
H
4
Alkenes, Aliphatic Hydrocarbons
Synonym(s)
Bicarburated Hydrogen, Acetene, Elayl, Etherin
Molecular Weight
Critical Pressure (psia)
Critical Temperature (R)
Ratio of Specific Heats
28.050
748
509.5
1.255
Physical Characteristics
Solubility
Flammable, Colorless, Slightly sweet odor
Soluble in water and alcohol. Dilutes lube oil.
Applications or Uses
Manufacture of Ethylene Glycol. Plastics at higher pressures. Food Processing. Also used as an illuminant with other gasses for lighting. Generally used at relatively higher pressures. .
Hazards
Asphyxiant. Dispersible over a large area and does not dissipate into atmosphere. Long range ignition possible. Handle in well ventilated area.
Material Requirements
Non-corrosive. Standard materials apply.
Lubrication
Standard guidelines for lube or non-lube service.  Has a tendency to dissolve into lube oil, thereby reducing oil viscosity.
Comments
No special problems with compression.
However, in the event ethylene oxide can be formed, extreme care is required.  In certain cases, Ethylene Oxide and copper can combine to form Acetylene.  If Ethylene Oxide is present, do not use yellow metals.
Gas Properties - Ethylene