Abstract
PurposeThe aim of this paper is to study the corrosion behavior and corrosion mechanism of carbon steel in polluted freshwaters with organophosphorus pesticide (OP).Design/methodology/approachThe weight‐loss method, electrochemical measurements and surface analysis technique were used to study the corrosion of carbon steel in polluted freshwaters with OP.FindingsGeneral corrosion occurred when carbon steels were exposed to test solutions (freshwaters with and without OP). The presence of OP in test solutions can accelerate the corrosion rate of carbon steel.Originality/valueThe aim of this work was to evaluate the effect of a single OP (diethyl phosphite) on the corrosion of carbon steel. Until now, there was little research to report on this aspect. It was found that the presence of diethyl phosphite at low concentrations could accelerate the corrosion rate of carbon steel in freshwaters. This research not only can offer theoretical guidelines for the prevention of pipelines and facilities from corroding, but also can provide reference for suitable material selection.
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