The relationships between molecular structure and inhibition performance for mercapto-triazole compounds of different structures in the corrosion of carbon steel in HCl aqueous solution were studied by using grey relational analysis methods.

Using the gold electrode self-modified by Mercapto-triazole,the experiment produces the result that shows that the gold electrode modified by mercapto-triazole has significant catalysis on the Hydroquinone;there is a correlation between the square root of scan rate and the current of oxidation peak of Hydroquinone,which indicates that the redox reaction is a process controlled by expanding.