The inhibition of the corrosion of brass in HNO3 acid solution by anthranilic acid has been studied using weight loss,
Potentiodynamic polarization and Electrochemical Impedance Spectroscopic (EIS techniques. Corrosion rate increases with the
increase in acid concentration and temperature. As the inhibitor concentration increases corrosion rate decreases while
percentage of inhibition efficiency (I.E.) increases. Maximum I.E. of anthranilic acid was found up to 96.44 at 20 mM
inhibitor concentration in 0.1 M HNO3 solution. Polarization curve indicates that inhibitor act as mixed type. The results
obtained from weight loss and electrochemical techniques were in good agreement.
