Anodic dissolution of iron in unbuffered neutral chloride solutions has been investigated by transient polarization techniques. A new method to correct for the ohmic potential drop has been proposed. It has been observed that the anodic Tafel slopes were 40 mV/decade for fast polarization and 80 mV/decade for slow or steady‐state polarization. Steady‐state anodic characteristics of iron have been studied by superimposing short cathodic potential and current pulses. At steady‐state anodic polarization a Tafel relation was obtained between the cathodic potential (φ C ) and the cathodic current (i C ) with a Tafel slope of about 120 mV/decade for both potentiostatic and galvano‐static pulses. The difference in anodic Tafel slopes has been interpreted in terms of the formation of a hydroxochloro‐iron complex, . The cathodic pulse polarization results indicate that .
No takes yet. Share an insight, caveat, or question.
Asakura et al. (1971) studied this question.