Ali Abd Ali, Rana Hammza, Asim Balakit, Ahmed Al-Amiery and Emad Yousif
The effect of 3-[(4- bromo-5- methylthiophen-2- yl) methylene amino]-2-isopropyl quinazolin-4(3- H) one (3-4- 5QZ) as a corrosion inhibitor was studied using weight loss measurement. The rate of corrosion was found to be decreased with increasing inhibitor concentration. The adsorption of (3-4-5QZ) on the surface of zinc metal was also investigated according to the Freundlich model. The electronic property of (3-4- 5QZ) inhibitor obtained by the semi-empirical quantum chemical calculations, using the PM3 method, revealed a satisfactory correlation with the experimental data.