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What causes Corrosion? |
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What Causes Corrosion Corrosion is caused by the reaction of a metal with the enviroment; a typical example of corrosion is the red rust on iron. Rust is made of different iron oxides like Fe2O3, Fe3O4 that forms due to the reaction of Oxygen dissolved in water with Iron: 2Fe + O2 + 2H2O -----> 2Fe(OH)2 Fe(OH)2 is unstable in oxygeated solution and reacts: 2Fe(OH)2 + H2O + 1/2O2 -----> 2Fe(OH)3 The final products is the red rust.
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