why do copper vessels lose their shine when exposed to air ?
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One of the main reason why the copper vessels lose their shine when exposed to air is due to the passivization. ... At the surface of vessel, Copper atoms react with the Oxygen atoms in the air forming copper-oxide
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The copper vessel lose their shine when they are exposed to air because of reaction with the
sulfurdioxide (SO2) present in air so it turns green
Cu4SO4(OH)6 is green
And it also happens due to formation of CuO on the surface of metal
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