The application of electrochemical impedance spectroscopy (EIS) i examining the corrosion of lacquered tinplate

摘要

Until now method of electrochemical impedance spectroscopy (EIS) has not been used ill our country for studying the corrosion of tins filled with suitable food industry products. This paper demonstrates the application of the method of EIS in analyzing lacquered tinplate used for making tins, that were filled with different food industry products. The results of the examination conducted in the research have shown that there is no pore penetrations caused by corrosion. The obtained results have displayed that during storage for 36 months the corrosion rate is of the value of 10{sup}(-4)mm/year which is considerably less than the allowed value of 0.12 mm/year.