The corrosion rate of the CT3 steel in 1 N and 2 N hydrochloric acids was measured by electrochemical polalization method. The measuring values of icorrosion showed that alcoholoamines influence on the inhibition corrosion of the CT3 steel in the hydrochloric acid solution and these values are increased in the order: monoethanolamine < diethanolamine < triethanolamine. In the solution of HCl 1 N and 2 N, the inhibition on the corrosion of steel CT3 of mixture of alcoholamines and potassium iodide is more effective than partial components.
