Formula: C3H4

Propadiene is a colorless, flammable, liquefied gas with a detectable odor.

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Propadiene has been used as a fuel for specialized welding


Grade 1.5
Purity 95.0%
Other Hydrocarbons  < 5%
Moisture  < 5 ppmv
Total Impurities  < 5%

**Moisture level guaranteed only when Electronic Fluorocarbons prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated.
Product sold on the basis of total impurities. Individual impurities may vary slightly.

Chemical & Physical Properties
Molecular Weight 40.065
Specific Volume 9.6 cu. ft/lb
Pressure @ 70° F 102 psig
Valve Outlet CGA 510
LB CGA 170


Shipping Information
DOT Name Propadiene, Inhibited
Hazard Class 2.1
DOT No. UN 2200
DOT Label Flammable Gas
CAS No. 463-49-0


Cylinder Size Fill Weight (lbs)
LP30 110
LP15 50
LP05 20
LP01 5
49L/Size 300 50
44L/Size 200 45
16L/Size 80 17
7L/Size 35 7

*This gas not available for purchase online.