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