Table 5 The over potential values of copper electrode (3.14mm2) at 60 °C.

From: A study on synergistic effect of chloride and sulfate ions on copper corrosion by using electrochemical noise in asymmetric cells

Solutions

Eappl (V)

Eeq (V)

η (V)

NaCl

− 0.457

− 0.300

− 0.157

Na2SO4

− 0.410

− 0.300

− 0.110

NaCl + Na2SO4

− 0.351

− 0.300

− 0.051