International Journal of Chemical Studies
Vol. 4, Issue 2 (2016)
Corrosion characteristics of 1, 2, 3 benzotriazole for carbon steel in hydrochloric acid solutions
Author(s): Harish Kumar, Manju Kumari
Abstract: 1, 2, 3 Benzotriazole (BTA) is used as corrosion inhibitor for Carbon steel in different concentration of hydrochloric acid medium and at different temperature. Corrosion rate and Percentage Corrosion Inhibition Efficiency (PCIE) was calculated by weight loss method, electrochemical polarization experiments and Impedance spectroscopy techniques. Surface study of corroded and blank specimens was carried out by SEM and Metallurgical research Microscopy techniques. 100, 200, 400, 600, 800 and 1000 ppm of 1, 2, 3 Benzotriazole was tested in different concentration of HCl solution i.e. 2.0, 1.0 and 0.1 N. It was observed that percentage Corrosion inhibition efficiency increases with increase in concentration of corrosion inhibitor. Effect of temperature on percentage corrosion inhibition efficiency was also studied. As the temperature increases, percentage corrosion inhibition efficiency decreases. It was also observed that percentage corrosion inhibition efficiency decreases with dilution of HCl. BTA acts as a good inhibitor for Carbon Steel in different hydrochloric acid medium.
Pages: 32-39 | 1247 Views 24 Downloads
How to cite this article:
Harish Kumar, Manju Kumari. Corrosion characteristics of 1, 2, 3 benzotriazole for carbon steel in hydrochloric acid solutions. Int J Chem Stud 2016;4(2):32-39.