Corrosion inhibition studies of Quinoline intermediate on mild steel

Corrosion resistance “properties of 4-chloro,8-(trifluoromethyl) quinoline on Mild Steel in 1 M HCl solution by electrochemical methods such as Tafel and Electrochemical Impedance measurement. 1000 ppm of the inhibitor gives highest inhibition efficiency of 92%. All the experiments were conducted at room temperature. Electrochemical results show that it is a mixed type of inhibitor. Polarisation and Impedance measurements results are similar in nature. Scanning Electron microscopic images confirms the formation of passive layer on the” metal surface. Overall results indicates that quinoline derivative is good inhibitor for mild steel in HCl Medium.