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topic 12495

Tell me about tarnishing


 

I know this may seem frivolous, but I am an eighth grade Pre-Ap science student who has had no luck whatsoever in finding the answer to this question. Why does tarnishing occur, and how exactly does it work.

Michael Ryan Roberts
- Bella Vista, Arkansas


 

Tarnishing is corrosion of the surface. It happens because a metal oxide or sulphide is more stable than a raw metal. The raw metal is active and wants to combine with oxygen or sulfur in the air to form a metal oxide or metal sulphide.

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



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