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Acetylene (C₂H₂, Ethyne) is manufactured commercially by reaction between calcium carbide and water, and as a by-product of ethylene production. It is a flammable, colourless gas with an ether-like odour when very pure, otherwise garlic-like. Acetylene is supplied dissolved in acetone or DMF (N,N- dimethylmethanamide) and can decompose instantaneously at pressures higher than 1 bar.
Acetylene is used as a raw material for the production of electrically conducting plastics; as a fuel for the flame in atomic absorption flame spectroscopy; in combination with oxygen for cutting or welding materials; for lead brazing or welding; in organic and chemical synthesis; in the production of molecular manufacturing like fullerenes; in the cultivation of plants; and as a component in calibration gases.
Gas cylinder size
Gaseous relative density
Components (% Vol. abs)
C2H2 ≥ 99,5 %
Maximum operating pressure: 1,5 bar at 15°C
Garlic like poor warning properties at low concentrations