A Study of N,N-Diethylammonium O,O %26apos;-Di(p-methoxyphenyl)dithiophosphate as New Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solution

作者：Lai Chuan; Xie Bin; Liu Changlu; Gou Wan; Zhou Lvshan; Su Xiulan; Zou Like

来源：International Journal of Corrosion, 2016, 2016: 1907634.

DOI：10.1155/2016/1907634

<jats:p>N,N-Diethylammonium O,O′-di(<jats:italic>p</jats:italic>-methoxyphenyl)dithiophosphate (EAPP) as a new corrosion inhibitor was synthesized in the present work. The corrosion inhibition of EAPP in hydrochloric acid for carbon steel was evaluated by potentiodynamic polarization measurements, electrochemical impedance spectroscopy, weight loss measurements, and scanning electron microscopy. The results indicate that the EAPP is mixed type inhibitor, and the adsorption of EAPP on carbon steel surface obeys Langmuir isotherm. In addition, the inhibition efficiency increases with increasing the concentration of inhibitor and decreases with increasing the hydrochloric acid concentration, temperature, and storage time.</jats:p>

• 出版日期2016
• 单位四川大学