Acetylene ( ethyne) Simplest alkyne, C2H2. A colourless, flammable, explosive gas, it is used as a fuel in welding and cutting metals and as a raw material for many organic compounds and plastics.

  • 乙炔:最简单的炔(C2H2),无色可燃气体,广泛用作金属焰焊接和切割的燃料,也是合成许多有机化学品和塑料的原料。

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