Title of article :
Apricot juice as green corrosion inhibitor of mild steel in phosphoric acid
Author/Authors :
Yaro, Aprael S. University of Baghdad - College of Engineering - Chemical Engineering Department, Iraq , Khadom, Anees A. University of Diyala - College of Engineering - Chemical Engineering Department, Iraq , Wael, Rafal K. University of Baghdad - College of Engineering - Chemical Engineering Department, Iraq
Abstract :
The corrosion protection of mild steel in 1 M H3PO4 solution by apricot juice was studied at different temperatures by weight loss technique. Adsorption, activation and statistical studies were addressed in this work. Adsorption studies showed that inhibitor adsorbed on metal surface according to Langmuir isotherm. Average value of heat of adsorption was 14.93 kJ/mol indicates a spontaneous physical adsorption on metal surface. Activation parameters did not changed with addition of inhibitor indicates that there is no change in reaction mechanism. Analysis of variance (ANOVA) was also applied. This analysis showed that the corrosion rate influenced by temperature, inhibitor concentration and combined interaction of them.
Keywords :
Corrosion , Mild steel , Kinetic parameters , Green corrosion inhibitor , Statistical analysis
Journal title :
Alexandria Engineering Journal
Journal title :
Alexandria Engineering Journal
