Inhibition of the corrosion of middle steel in solutions of hydrochloric and acetic acid mixed at different temperatures.

In this paper is made the evaluation of the influence that the temperature and the concentration produce on the inhibitory effectiveness of the 2-beta nitrovinilfurane's residue. This compound is used as inhibitor of the corrosion of middle steel in solutions of hydrochloric and acetic acid mixed. The gravimetric method was used in order to determinate the corrosion rate of metallic probes in solutions with and without inhibitor and the polarization curves were obtained by potenciodynamic polarization method. From the obtained results it was confirmed the increment in the inhibitory effectiveness of the evaluated product when the concentration and the temperature were incremented. For the other hand it was established that the chemical adsorption mechanism of the inhibitory occurs.