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Electromotive Series and Reduction Potential
Factors in Bi-Metalic Corrosion
The greater the numerical difference between metals the greater the electrical potential.
In a corrosion situation with an electrolyte metals tend to disolve and try to plate metals lower on the chart.
The 1898 chart is given as a reference but does not reflect modern science.
1898 CE
Marks' 6th
ASM
+Sodium
-2.71
Magnesium
Magnesium
-2.37
Beryllium
Aluminum
-1.66
Manganese
-1.188
Zinc
Zinc
-0.763
Chromium
-0.74
Iron
-0.44
Cadmium
-0.403
Nickel
-0.25
Tin
-0.136
Lead Pb
Lead Pb
-0.126
Tin ?
Iron ?
Hydrogen (0)
zero
Copper
Copper
+0.337
Mercury
+0.789
Silver Ag
Silver Ag
+0.799
Palladium
Gold
Platinium
Platinium
+1.2
Gold
+1.50
-Graphite
1898 Tables and Formulas, The Colliery Engineer Co., p.69 The Electromotive Series
Marks' Mechanical Engineers Handbook, 6th Ed., 6-122, Electromotive Force Series in Metals
Electromotive Series and Reduction Potential
Factors in Bi-Metalic Corrosion
The 1898 chart is given as a reference but does not reflect modern science.
1898 Tables and Formulas, The Colliery Engineer Co., p.69 The Electromotive Series
Marks' Mechanical Engineers Handbook, 6th Ed., 6-122, Electromotive Force Series in Metals
ASM Metals Reference Book, 2nd Ed. p.98 Reduction Potential
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