In this work, the corrosion behavior of iron and aluminum was investigated in 0.1 M NaCl solutions with an initial pH value of 8 and containing various concentrations (0, 30, 150, 300 ppm) of benzoic acid. For this purpose, the anodic and cathodic semilogarithmic current-potential curves, weight loss and pH of the solution were determined over time. The changes in the concentrations of benzoic acid in the solutions with time were determined by a UV spectrophotometer. According to the results obtained in this investigation, benzoic acid in 0.1 M NaCl acts on iron and aluminum as an inhibitor. This effect gets stronger with increasing concentrations of benzoic acid in 0.1 M NaCl solution.
ZOR, SİBEL (2002) "The Effects of Benzoic Acid in Chloride Solutions on the Corrosion of Iron and Aluminum," Turkish Journal of Chemistry: Vol. 26: No. 3, Article 14. Available at: https://journals.tubitak.gov.tr/chem/vol26/iss3/14