With electrochemical, weight loss tests and superticial analysis with near infrared spectroscopy (NIR) and scan electronic microscopy (SEM), were selectivity at 5-aminotetrazol with 90.4 % of efficiency to aluminium and 90.8 % of efficiency to copper and the cupferron for steal with 87.8 % of efficiency such as corrosion inhibitor for synthetic sea water.

With electrochemical, weight loss tests and superticial analysis with near infrared spectroscopy (NIR) and scan electronic microscopy (SEM), were selectivity at 5-aminotetrazol with 90.4 % of efficiency to aluminium and 90.8 % of efficiency to copper and the cupferron for steal with 87.8 % of efficiency such as corrosion inhibitor for synthetic sea water.