Inhibitive action of 3,4'-bi-1,2,4-Triazole on the corrosion of copper in NaCl 3% solution

The efficiency of a new corrosion inhibitor,the (bta),on copper was investigated in an aerated 3% nacl solution using various techniques by potentiodynamic polarisation techniques,weight loss measurements and surface analysis (sem). potentiodynamic polarization curves showed that (bta) is a mixed-type inhibitor for copper in chloride solution 3% and is even more efficient than the reference compound benzotriazole. the inhibition efficiency was found to increase with concentration until 5×10-3m. the maximal protection efficiency exceeded 94.65%.