Comparative Study on Mild Steel Corrosion using Formazan of p-dimethyl amino benzaldehyde Compound as Corrosion Inhibitor in Acid Medium

摘要

Formazan of p-dimethyl amino benzaldehyde (FD) has been prepared as a corrosion inhibitor to control the rate of corrosion. This compound has been investigated as corrosion inhibitor at room temperature for preventing mild steel corrosion in Sulphuric acid and Hydrochloric acid medium by weight loss method, electrochemical methods. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with different acid concentration. Also, it was found that the corrosion inhibition behavior of (FD) is greater in 2N HCl and 2N H2SO4. So (FD) can be used has a good inhibitor for preventing mild steel material.