Aloe Saponaria Gel as a Green Corrosion Inhibitor of Carbon Steel in an Acid Medium

Chemical inhibitors play an important role in protection and mitigation strategies to retard corrosionCorrosion; however, their use can cause negative effects on the environment. Due to this, the use of plant extracts as corrosión inhibitors has been suggested since they are non-toxic, biodegradable and abundant in nature. Aloe SaponariaAloe saponaria gel was used as a green corrosión inhibitor of mild carbon steelCarbon steel in 0.5 M HClHCl acid medium. The corrosionCorrosion inhibitionInhibition performance was investigated by electrochemical impedanceImpedance and potentiodynamic polarization in the absence and presence of the inhibitor, in different concentrations (10, 20, 30% v/v), at the following temperaturesTemperature: 298, 308, 315, and 323 K. The trend is observed that the higher the inhibitor concentration, the lower the corrosion rateCorrosion rates, this is due to the adsorption of organic matter creating a cover on the surface of the steelSteel.