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Question:

How long does copper take to oxidize(rust)?

Does is oxidize faster than iron? Which commonly found metal oxidizes fastest? If i put 100 g of copper into a container with enriched oxygen, will it oxidize faster?

Answer:

Lucky you, this time you may still use it to boil water. Next time the welded seam might cause a leak somewhere and its the end of it. Another prospect of copper bottom pot is that they might be of bi-metal. Copper is a good conductor of heat, cause water to boil real fast and save you energy; Again, its the problem of the seam and this time the copper layer might just segregate and drop off from the bottom of the pot. Use it with an alarm to remind you or a whistle to sound off then you will be OK. Accident does happen all the time.. Ciao and good luck.
Pure copper ( Cu ) is very very slow to oxidize into CuO, Pure iron ( Fe ) will oxidize faster. You can imagine roughly how long iron takes to rust (a while in a wet salty environment) but copper takes longer. Fe will usually oxidize to Fe2O3 (rust). 100 g of copper is a lot, and it will someday oxidize but like I said, it's a very slow process. Even then, if copper oxidized, it will form an oxide layer on the top layer ( like a coating ) to prevent further oxidation. Some copper compounds like brass will oxidize pretty quickly given the right conditions.

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