Methylacetylene



Methylacetylene
IUPAC name Prop-1-yne
Other names Methylacetylene
Methyl acetylene
Propyne
Identifiers
CAS number 74-99-7
SMILES CC#C
Properties
Molecular formula C3H4
Molar mass 40.0639 g/mol
Density 0.53 g/cm³
Melting point

-102 7°C

Boiling point

-23.2 °C

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Methylacetylene (propyne) is an gas welding.

Use as a rocket fuel

Research by European space concerns into using light hydrocarbons with cryogenics.)

Use in organic chemistry

Propyne is a convenient three-carbon building block for synthesis. When propyne is condensed and treated with carbonyl, producing a secondary alcohol. While purified propyne is expensive, in this reaction it can be replaced with MAPP gas to cheaply generate large amounts of the reagent.

References

  • German Aerospace Center
  • Nova Chemicals
v • d • e
Ethyne ( C2H2 ) • Propyne ( C3H4 ) • Butyne ( C4H6 ) • Pentyne ( C5H8 ) • Hexyne ( C6H10 ) • Heptyne ( C7H12 ) • Octyne ( C8H14 ) • Nonyne ( C9H16 ) • Decyne ( C10H18 ) • Undecyne ( C11H20 )
 
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