What is the method of protective protection of metal products? Make the required reaction equations.
| November 25, 2020 | education
The meaning of the method of protective protection lies in the fact that the structure is connected with a more active metal than the metal of the protected structure. Magnesium, aluminum, zinc and their alloys are most often used as a protector when protecting products.
Fe (cathode): O2 + 2H2O + 4e → 4OH-
Zn (anode): Zn – 2e → Zn2 +
Overall reaction: 2Zn + O2 + 2H2O → 2Zn (OH) 2
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