Open AccessExperimental study and mathematical modelling of the corrosi-on inhibition of mild steel with an organic compound in 1 M HCl
Author(s) -
Wafia Boukhedena,
Samir Deghboudj
Publication year - 2021
Publication title -
journal of electrochemical science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.236
H-Index - 6
ISSN - 1847-9286
DOI - 10.5599/jese.1050
Subject(s) - hydrochloric acid , adsorption , corrosion , gravimetric analysis , quadratic model , organic compound , materials science , quadratic equation , scanning electron microscope , langmuir , chemistry , nuclear chemistry , metallurgy , response surface methodology , chromatography , organic chemistry , composite material , mathematics , geometry
In this paper, synthesized organic compound of the family of ketene dithioacetal was studied as corrosion inhibitors for mild steel in 1.0 M hydrochloric acid by gravimetric measurement. The aim of this work is to study the effect of inhibitor concentration and the temperature on the resistance, corrosion and to compare the experimental results with mathematical models. The structural properties were performed using scanning electron microscopy technique. It has been found that the inhibition efficiency, increases with increasing inhibitor concentration. The adsorption of studied compounds on mild steel surface follows Langmuir’s isotherm. Obtained data were analyzed by suggesting two mathematical models based on linear and quadratic regression, taking into account the influence of concentration and temperature on the inhibition efficiency. Obtained experimental data were in good agreement with those predicated by the quadratic model