Also called propene, a colorless, flamable, gaseous hydrocarbon, C3H6, obtained from low molecular weight constituents of petroleum.
Component
Unit
Specification
Propylene
% vol
min 99.8
Propane
max 0.2 %
Hydrogen
ppm vol
max 5
Ethylene
max 1
Butenes
Pentenes
Non-condensables
max 20
Ethane
Butane-pentanes
max 10
C6-C12 Hydrocarbons
Acetylene
Methyl-acetylene
Propadiene
Butadiene
Oxygen
max 2
Carbon Monoxide
max 0.03
Carbon Dioxide
COS
max 0.02
Total sulphur
ppm wt
Methanol
Isopropanol
Water
Arsine
max 0.01
Phosphine
Ammonia
Cyclopentadiene
max 0.05