Corrosion Inhibition Effect of N, N’-diphenylthiourea on the Electrochemical Characteristics of Mild steel in Dilute Acidic Environments
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Description
The electrochemical corrosion behaviour of n, n’-diphenylthiourea on the surface
properties mild steel in attenuated sulphuric and hydrochloric acids (3M concentration)
contaminated with 3.5% recrystalized sodium chloride at ambient temperatures was examined
through weight loss analysis, open circuit potential monitoring and potentiodynamic polarization.
The surface morphology of the samples was analyzed with scanning electron microscopy and x-ray
diffractometry. Statistical analysis of the results was done with aid of ANOVA software to assess
their statistical relevance. Results show the thiourea derivative performed more excellently in
sulphuric than hydrochloric acid based on inhibition efficiency values. Observations from
SEM/XRD image and data further confirm the results of experimental data. Statistical derivations
reveal the overwhelming influence of exposure time on inhibition performance compared to
concentration of the organic compound.
Keywords
T Technology (General), TJ Mechanical engineering and machinery