Structure via PubChem · Public domain (PubChem)
propadiene
Sign in to saveAlso known as allene, 1,2-propadiene, propa-1,2-diene
Propadiene () or allene () is the organic compound with the formula . 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.
Chemical data
- Formula
- C3H4
- Molecular weight
- 40.06 g/mol
- IUPAC name
- propa-1,2-diene
- SMILES
- C=C=C
- InChIKey
- IYABWNGZIDDRAK-UHFFFAOYSA-N
- XLogP
- 0.8
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Wikidata facts
- Mass
- 40.0313
Show 7 more facts
- Commons category
- Allene
- chemical formula
- C₃H₄
- canonical SMILES
- C=C=C
- electric dipole moment
- 0
- ionization energy
- 9.69
- melting point
- -136.28
- boiling point
- -34.45
Sources (1)
via Wikidata · CC0
~1 min read
Article
4 sectionsContents
- Production and equilibrium with methylacetylene
- Occurrence in space
- See also
- References
Propadiene () or allene () is the organic compound with the formula . 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.
==Production and equilibrium with methylacetylene== Propadiene exists in equilibrium with methylacetylene (propyne) and the mixture is sometimes called MAPD for methylacetylene-propadiene: