Energy Glossary Definition (English)
Sacrificial Anode Defined
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"A metal rod placed in a water heater tank to protect the tank from corrosion. Anodes of aluminum, magnesium, or zinc are the more frequently used metals. The anode creates a galvanic cell in which magnesium or zinc will be corroded more quickly than the metal of the tank giving the tank a negative charge and preventing corrosion."
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Expert Dictionary: Sacrificial Anode
