How can wet carbon dioxide be responsible for a corrosion problem in iron-containing metals? How can wet carbon dioxide be responsible for a corrosion problem in iron-containing metals?

How can wet carbon dioxide be responsible for a corrosion problem in iron-containing metals?
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Carbon dioxide reacts with water according to the following equation: CO2 + H2O –> HCO3- + H+ As the  concentration of CO2 increases, so does the concentration of the H+ ion. This ion can then react with Fe  in metals as follows: Fe + 2H+ –> 2H (atom) + Fe2+ As corrosion proceeds, the ferrous ions produced can  react with the bicarbonate ions to form ferrous carbonate, which precipitates as a scale.
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