Performance Evaluation of Sargassum Polycystum C. Agardh Seaweed Extract as Green Inhibitor for Acid Corrosion of Mild Steel

The inhibition for the corrosion of mild steel in acid solution by the extract of Sargassum polycystum seaweed was studied using electrochemical technique and mass loss method. The results obtained show that the seaweed extract could serve as an effective inhibitor for the corrosion of mild steel in...

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Bibliographic Details
Published in:Oriental journal of chemistry 2019-01, Vol.35 (1), p.241-254
Main Authors: Thilagavathi, R., Prithiba, A., Rajalakshmi, R.
Format: Article
Language:English
Subjects:
Adsorption
Algae
Chromatography
Corrosion inhibitors
Corrosion potential
Corrosion prevention
Corrosion tests
Efficiency
Electrodes
Fourier transforms
Low carbon steels
Metal surfaces
Performance evaluation
Phytochemicals
Scanning electron microscopy
Science
Seaweeds
Studies
Submerging
Surface chemistry
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Summary:The inhibition for the corrosion of mild steel in acid solution by the extract of Sargassum polycystum seaweed was studied using electrochemical technique and mass loss method. The results obtained show that the seaweed extract could serve as an effective inhibitor for the corrosion of mild steel in acidic medium. It was noticed that the inhibitor concentration, immersion time and temperature influenced the IE. The adsorption of the Sargassum polycystum extract molecules onto the metal surface obeyed Langmuir adsorption isotherm. Surface topography studies suggested the protection of MS surface from corrosion by the adsorption of inhibitor molecules onto the MS surface
ISSN:0970-020X
2231-5039
DOI:10.13005/ojc/350129