The Inhibition of Mild Steel Corrosion by Sulphur Containing Organic Compound
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Corrosion Inhibitors, methyl carbazodithoate, mild steel.
Abstract
The inhibition of mild steel corrosion in "2.0 M sulphuric acid" solution by a Sulphur containing organic compound namely " Methyl Carbazodithoate " has been studied at temperature 30 ? by weight loss technique. Adsorption isotherms were tested for their relevance to describe the adsorption behaviour of methyl carbazodithoate. The experimental results show that the test inhibitor has a promising inhibitory action against corrosion of low carbon steel in the medium investigated. The inhibition efficiency was found to increase with a corresponding increase in the concentration of the inhibitor. The adsorption mechanism of methyl carbazodithoate inhibition is also proposed. The lower adsorption of sulphate ions on the carbon steel metal surface permits more space for the adsorption of inhibitor molecules and enhances inhibition of corrosion. Finally, the obtained results in this work indicates that the sulphur-containing inhibitor compound namely; "methyl carbazodithoate" compound is an effective inhibitor for corrosion inhibition of carbon steel in sulphuric acid solution.
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