Or ethyne (C2H2) , a Colorless Gas (see States Of Matter) and the simplest alkyne (see Hydrocarbon). Explosive on contact with Air, it is stored dissolved under pressure in acetone. It is used to make
neoprene Rubber, Plastics, and Resins. The oxyacetylene torch mixes and burns Oxygen and acetylene to produce a very hot flame-as high as 6300 degrees Fahrenheit
(3480 degrees centigrade -see Temperature) - that can cut steel and weld iron and other Metals.