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sacrificial metal

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sacrificial metal [‚sak·rə′fish·əl ′med·əl]
(physical chemistry)
A metal that can be used for a sacrificial anode.


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Zinc coatings are used to provide a sacrificial metal that prevents corrosion, thus protecting the base metal.
Because the scientists could control how much of these sacrificial metals were inserted, the process yielded gold wires with precisely determined gaps.
The degree of dissolution is greatest with active or sacrificial metals such as magnesium and zinc and they have the most negative potential.
 
 
 
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