Abstract
The effect of chloride ions and solution pH on the electrochemical behavior of Armco iron in sulfuric acid in the absence and presence of benzoic acid has been investigated. The corrosion rate of inhibited and uninhibited iron decreased with increase in solution pH. The capacitance increased linearly with immersion time although the corrosion rate remained essentially constant. The slope of the capacitance‐immersion time curve was less for inhibited than for uninhibited iron and decreased with increase in solution pH. A minimum in the corrosion rate was observed for inhibited and uninhibited iron in pH 0.3 solutions containing . This minimum was not observed for solutions of pH 1.0 and 1.7.
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