A new method was proposed for the application of utile colt own inhibitors on the surface of copper This method depends on the vacuum pyrolysis of the inhibitor in the presence of copper specimens Three ante inhibitors namely benzotriazole (Azole (1)), N-[Benzotriazol 1 yl (phenyl)-methylene] N-phenyl-hydrazine (Azole (2)) and N-[Benzotriazol-1-yl-(4-methoxy phenyl)-methylene]-N-phenyl-hydrazine (Azole (3)) were tested Alter pyrolysis copper samples were electrochemically tested in sulfide polluted salt water and compared to the behavior of copper tested in the sulfide polluted salt seater containing dissolved benzotriazole Results showed that copper specimens treated in the presence of Azoles (2) and (3) exhibit excellent corrosion resistance Those samples could resist the poisoning effect of sulfide ions Azole (I) shows good resistance at low sulfide concentration and tailed at the high concentration Surface investigation support the results of electrochemical tests [doi 10 2320/matertrans M2010141]