A study has been made of the resistance to corrosion of one carbon steel and two low alloy steels in 2M HCl solutions at temperatures between 60 and 90°C and of the effectiveness of some organic compounds used as corrosion inhibitors under the same experimental conditions. Weight loss results, spectrophotometric analysis for the determination of the Fe2+ ion concentration, and electrochemical data suggest that the level of inhibition and the various effects of the examined inhibitors on the behaviour of carbon and low alloy steels can be explained by the specific mechanisms of the action of each of the inhibitors.
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