PropadienePropadiene or allene is the organic compound with the formula H2C\dC\dCH2. It is the simplest allene, i.e. a compound with two adjacent carbon double bonds. As a constituent of MAPP gas, it has been used as a fuel for specialized welding. Read from the Chembox of the Wikipedia article Propadiene, revision 1380070626.

Property

Value

Formula

C3H4, 40.06 g/mol

Melting point

-136 °C

Boiling point

-34 °C

log P, measured

1.45

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