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9
CH3041
pE vs pH TYPICAL WATERS
•
oxidising
reducing
stability of water lines
         Soil water
          Aquifer water
                  Acid-mine water
lake, stream water
Normal ocean water
Eutrophic lake water
Organic rich
waterlogged soils
Organic rich
saline water
bog water
+ overpotential
pE = EH / 0.059





Overpotential
is required for
a realistic
rate of rxn.
Oxidising
reducing