Acetylene - C2H2

Acetylene also known as Ethyne, is the simplest of alkynes. It is a colourless and odourless gas that is used as fuel, for chemical building block and for welding.

Acetylene was discovered in 1836 by Edmund Davy.


  • Molecular weight:

    26.04 g/mol

  • Gaseous phase:

    Gas density: 1.097 kg/m3

  • Solid phase:

    Melting point: -80.08 °C