The reaction principle between acetylene and copper
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How does acetylene react with copper? Does it react with copper ions or with elemental copper? Does it react with copper oxide or with copper salts? What are the conditions for the formation of copper acetylide and copper acetyne? Are there any relevant studies or literature that mention its reaction mechanism and reaction equation?
Acetylene possesses weak acidity; when passed through an aqueous solution of silver nitrate or cuprous chloride ammine, it immediately forms white silver acetylide (AgC≡CAg) and reddish-brown cuprous acetylide (CuC≡CCu) precipitates, which can be used for the qualitative identification of acetylene. I’m not quite sure about the rest