Experimental and Computational Anticorrosion Behaviors of Pyrazole -Triazine/anilino-morpholino Derivatives for Steel in Acidic Solutions.

The corrosion inhibition of C-steel by two -triazine/morpholino-anilino-pyrazole derivatives, namely, 4-(3,5-dimethyl-1-pyrazol-1-yl)-6-morpholino--phenyl-1,3,5-triazin-2-amine () and -(4-bromophenyl)-4-(3,5-dimethyl-1-pyrazol-1-yl)-6-morpholino-1,3,5-triazin-2-amine () was investigated by impedimetric and potentiometric studies. It was found that ( and () acted as cathodic-type corrosion inhibitors that retard the hydrogen evolution reaction. The percent corrosion inhibition, 98.