Corrosion Inhibition of Aluminum in Soduim Hydroxide Basic Medium by Ketoprofen Expired Drug

Abstract

The inhibitory effect of expired drug molecules, ketoprofen, on aluminum pure corrosion in 0.2 M NaOH solution was investigated using the weight loss approach (20, 30, 40, and 50 C). When the inhibitor concentration is increased, the efficiency of inhibition improves. Adsorption is governed by the Langmuir isotherm model. As a result, the effectiveness of inhibition is dependent. in the presence or absence of the inhibitor. The highest inhibition efficiency of 93.25 percent was obtained with the strongest inhibitor. maximum concentration and temperature.