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Electrochemical and thermodynamic investigation of benzenamine as corrosion inhibitor of austenitic stainless steel ( type 304) in hydrochloric acid solution | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

Electrochemical and thermodynamic investigation of benzenamine as corrosion inhibitor of austenitic stainless steel ( type 304) in hydrochloric acid solution

Author(s): Roland Tolulope Loto a,b *, Cleophas Akintoye Loto a,b , Ayodele Samuel Onawunmi a,c and Williams Kupolati d

The inhibiting action of benzenamine (BEZ) on the c orrosion of type 304 stainless steel in 3M hydrochl oric acid was investigated through electrochemical tests. Results show BEZ to be an excellent inhibitor. The compoun d was observed to be of mixed type in action. Inhibition efficiency increased with increase in BEZ concentra tion giving an optimal value of 96.14% at 6.25% BEZ concentration from weight loss and 88.7% at 5% BEZ concentration from polarization tests. X-Ray diffractometry revealed t he absence of corrosion products. Statistical analy sis using ANOVA showed the statistical significance of BEZ co ncentration on its inhibition efficiency performanc e. The compound obeyed Langmuir adsorption isotherm.


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