Why choose magnesium anode rod for water heater?

The magnesium rod for water heater is a key protective component in electric water heaters. Its main function is to extend the life of the water heater by sacrificing itself.
The inner tank of the electric water heater is usually made of metal materials. During long-term use, it will corrode due to the alternation of hot and cold water and the corrosion of dissolved oxygen in the water. This corrosion will not only shorten the service life of the inner tank, but may also cause serious problems such as leakage.
As a sacrificial anode material, the magnesium rod is corroded preferentially through electrochemical reactions to protect the metal of the inner tank from corrosion. Specifically, the magnesium rod forms an electrochemical corrosion cell with the metal of the inner tank. The electrode potential of magnesium is more negative and is preferentially oxidized, thereby protecting the metal of the inner tank.

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