Asian Journal of Research in Chemistry

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O-Nitro Phenol as a Corrosion Inhibitor for Carbon Steel


Affiliations
1 Department of Chemistry, Holy Cross College, Tiruchirappalli – 620 002, Tamilnadu, India
2 Department of Chemistry, GTN Arts College, Dindigul – 624 005, Tamilnadu, India
     

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The inhibition efficiencies of inhibitor systems constituting various combinations of o-nitrophenol (ONP) and zinc ions in controlling corrosion of carbon steel immersed in ground water for seven days had been evaluated by weight loss method. The nature of the protective film formed on the metal surface has been analysed by FTIR spectra. The protective film was found to consist of Fe2+ - ONP complex. Synergism parameters and Analysis of variance (ANOVA) had been used to evaluate the synergistic effect existing between various inhibitors.


Keywords

Carbon Steel, Corrosion Inhibition, O-nitro Phenol, F-test, Synergistic Effect.
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  • O-Nitro Phenol as a Corrosion Inhibitor for Carbon Steel

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Authors

H. BenitaSherine
Department of Chemistry, Holy Cross College, Tiruchirappalli – 620 002, Tamilnadu, India
A. Jency Angela
Department of Chemistry, Holy Cross College, Tiruchirappalli – 620 002, Tamilnadu, India
S. Rajendran
Department of Chemistry, GTN Arts College, Dindigul – 624 005, Tamilnadu, India

Abstract


The inhibition efficiencies of inhibitor systems constituting various combinations of o-nitrophenol (ONP) and zinc ions in controlling corrosion of carbon steel immersed in ground water for seven days had been evaluated by weight loss method. The nature of the protective film formed on the metal surface has been analysed by FTIR spectra. The protective film was found to consist of Fe2+ - ONP complex. Synergism parameters and Analysis of variance (ANOVA) had been used to evaluate the synergistic effect existing between various inhibitors.


Keywords


Carbon Steel, Corrosion Inhibition, O-nitro Phenol, F-test, Synergistic Effect.