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Table 1: Potential difference
Metal Potential (V)
Magnesium +2.37
Aluminium +1.66
Zinc +0.76
Chromium +0.74
Iron/steel +0.44
Magnesium alloys +0.95
Tin +0.14
Copper +0.34
Copper-Nickel alloys +0.35
Nickel +0.25