Abstract

The inhibition performance of Rosmarinus officinalis (RO) extract on the corrosion of carbon steel was examined using electrochemical and analytical techniques. Investigations were carried out in HCL 1 M solution at different temperatures. Results showed that the extract acted as a mixed-type inhibitor, and inhibition efficiency increased with increasing inhibitor concentration. The adsorption of the extract molecules onto the carbon steel surface followed the Langmuir adsorption model. To confirm these results, scanning electron microscopy (SEM), was applied.

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