The Effect of phosphate Ions (PO3-4) on the Corrosion of Iron in Sulphat Solutions

Authors : G KILINÇÇEKER, B YAZICI, M ERBİL

Pages : 41-50

View : 12 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The effect of phosphate ions on the corrosion of iron in sulphate solutions at different temperatures insert ignore into journalissuearticles values(293 K, 313 K, 333 K and 353 K); and at different pH insert ignore into journalissuearticles values(pH=2.1, 7.2 and 12.3); values was investigated. The electrochemical three-electrode technique was employed. The cathodic and anodic current-potential curves were obtained by strating from the corrosion potential measured against SCE and polarizing it first in cathodic and then in anodic direction. The results obtained indicate that at high pH insert ignore into journalissuearticles values(pH=7.2 and 12.3); SO2-4+PO3-4ions together reduce the corrosion rate of iron to a greater extent than SO2-4 alone. At low pH insert ignore into journalissuearticles values(pH=2.1);, as the temperature increases the corrosion rate of iron increases in both SO2-4 and SO2-4+PO3-4 solutions.
Keywords : Turk J Chem, 23, 1999, 41 50 Turk J Chem, vol 23, iss 1