This article synthesized a mannich base corrosion inhibitor through mannich reaction,and characterized its structure by fourier transform infrared spectroscopy.the corrosion inhibition efficiency of mannich base corrosion inhibitor on 13Cr stainless steel in 90℃and 10%hydrochloric acid solution was studied using weight loss method and electrochemical analysis.the research results showed that when the temperature was 90℃and only 1%corrosion inhibitor was added to 10%hydrochloric acid solution,the corrosion inhibition efficiency could reach 99.52%.Electrochemical analysis showed that the corrosion inhibitor was a mixed type.
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