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I put a 2" square of aluminum foil in a container of orange juice and another in a container of tap water and allowed both to sit for one week. After one week, the one in the water container had turned brownish black and "corroded" more than the one in the Orange Juice. Why? I dunno. I would have thought it would be the opposite, but it wasn't. Anyone know why?
A.
The acid in the orange juice acted as a reducing agent to prevent oxygen from corroding the aluminum.
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∙ 14y ago
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