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Why do Pennies oxidize and turn green

What is the reason for pennies oxidizing and turning green? What kind of agent would you need to clean copper? What is in the juices used to clean pennies (what causes the juice to clean the acid?)

Kim H.

Please see our FAQ on this subject, Kim. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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