YOU ARE HERE: HOMESYNTHESIS OF NEW 3-[(4- BROMO-5- METHYLTHIOPHEN-2- YL)METHYLENE AMINO]-2- ISOPROPYL QUINAZOLIN-4(3H)- ONE AND ITS CORROSION INHIBITION ON ZINC BY 2M HYDROCHLORIC ACID

SYNTHESIS OF NEW 3-[(4- BROMO-5- METHYLTHIOPHEN-2- YL)METHYLENE AMINO]-2- ISOPROPYL QUINAZOLIN-4(3H)- ONE AND ITS CORROSION INHIBITION ON ZINC BY 2M HYDROCHLORIC ACID

Pages 11-19

Ali Abd Ali, Rana Hammza, Asim Balakit, Ahmed Al-Amiery and Emad Yousif

Abstract

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.

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