Abstract
The data of electrochemical analysis of Rosmarinus officinalis (RO) essential oil effect on high carbon steel (HCS) in three different corrosive environment of sodium chloride, sulphuric acid and citric acid solution was achieved via weight loss method. Results revealed that Rosmarinus officinalis (RO) organic compound performed excellent well on high carbon steel samples with the optimum inhibition value occurring in NaCl solution with 97.87% after 504 h. The corrosion rate values were significantly high at 0 ml RO organic compound for all the three (3) corrosive environments as the time of immersion moves down to 504 h. It was clearly observed that time of immersion and concentrations of RO are the main determinant factor for the excellent adsorption performance of RO organic compound within the range of 504 h. Also, Rosmarinus officinalis (RO) organic compound retarded the severe corrosion rate of high carbon steel samples in other corrosive solutions with average range inhibition values between 40 and 78% after 504 h.
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