Title of article :
Corrosion Control of Aluminium Alloy in Alkaline Solution Using Leave Extract of Plumbago Europaea
Author/Authors :
Bataineh, Tareq T. Yarmouk University - Faculty of Science - Department of Chemistry, Jordan , Al-Qudah, Mahmoud A. Yarmouk University - Faculty of Science - Department of Chemistry, Jordan , Nawafleh, E Yarmouk University - Faculty of Science - Department of Chemistry, Jordan , Ajlouni, Abdulaziz.M. Jordan university of science and technology - Department of Applied Chemical Science, Jordan
Abstract :
The inhibition efficiency of plumbago europaea extract on the corrosion of aluminum in 1.0MNaOH was investigated using weight loss technique. The presence of plumbago europaeaextract inhibited the corrosion of aluminum in the test solution. The inhibition efficiency increased with increasing plant concentration and increased with increasing temperature and reaches a maximum value of 96.8% with the highest extract concentration 20 ppm at 50°C. The experimental data complied to langmuir, temkin and the recently formulatedthermodynamic/kinetic model of adsorption isotherms. The obtained value and sign of thestandard free energy of adsorption is consistent with physisorption isotherms.
Keywords :
Plumbago europaea , Inhibitors , Corrosion , Sodium hydroxide , Weight loss technique.
Journal title :
Jordan Journal of Chemistry
Journal title :
Jordan Journal of Chemistry
