topic 12249

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.
- Houston, Texas

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

Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey

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