i think copper corrodes faster than iron.. but why?
copper reacts a lot more quickly when exposed to the oxygen than iron...it's the chemistry between copper and oxygen.
When copper is exposed to oxygen, it turns into cupric oxide which is not a very good conductor. So yes, Corrosion. On the other hand, iron has a higher electrical resistivity than copper.
This Site Might Help You. RE: why does copper corrode faster than iron? i think copper corrodes faster than iron.. but why?
Copper corrodes faster than iron? Since when? Iron is notorious for rusting - rust can completely consume unprotected iron in a few decades. In contrast, copper will acquire a patina relatively quickly. But oxidation of copper proceeds more slowly, and even centuries-old copper objects are rarely corroded deep into the metal. Ancient copper objects do show such corrosion, but iron ones will go faster. Iron is frequently protected against corrosion by alloying with nickel and chromium (stainless steel) - these form a passivating oxide layer - or by cathodic protection - the electrical connection of the iron to a more active metal such as zinc or magnesium. This metal will corrode before the iron does. Unless such protective measures are taken though, copper will corrode much more slowly than iron.
