Chemistry / Chem 2290 · Atom · ~20 seconds
Passivation Defined
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Passivation is the formation of a thin, nonreactive surface coating, usually an oxide, that slows a metal's further reaction with its environment.
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Aluminum's tough oxide layer lets it resist corrosion despite aluminum metal itself being highly reactive.
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A passivated metal is not unreactive — it is protected only until that coating is physically disrupted.
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