Investigation of Newly Prepared Chitosan Derivatives as a Corrosion Inhibitor of Low-Carbon Steel During Sulfuric Acid Pickling

This study made two new amino triazine chitosan (CNDHT and CNDT) and tested if they could reduce steel corrosion in an acidic solution. The chitosan derivatives inhibition effect of Low-carbon steel (LWCS) corrosion in 0.5-M H 2 SO 4 at different temperatures, which are used in the acid pickling pro...

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Bibliographic Details
Published in:Journal of bio- and tribo-corrosion 2025, Vol.11 (1), Article 13
Main Authors: Ismail, Mohamed N. M., Barghout, Nehal A., Rizk, Sameh A., El Nemr, Ahmed
Format: Article
Language:English
Subjects:
Biomaterials
Carbon content
Chemistry and Materials Science
Chitosan
Corrosion
Corrosion and Coatings
Corrosion effects
Corrosion inhibitors
Corrosion tests
Low carbon steel
Low carbon steels
Materials Science
Pickling
Solid Mechanics
Spectroscopy
Steel
Sulfuric acid
Thermodynamic models
Triazine
Tribology
Weight loss
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Summary:This study made two new amino triazine chitosan (CNDHT and CNDT) and tested if they could reduce steel corrosion in an acidic solution. The chitosan derivatives inhibition effect of Low-carbon steel (LWCS) corrosion in 0.5-M H 2 SO 4 at different temperatures, which are used in the acid pickling process, were studied using gravimetric, impedance spectroscopy (EIS), and potentiodynamic polarization techniques. The Metrohm autolab PGSTAT30 2N of Nova software version 1.11.2 was used to conduct and analyze the runs and show that chitosan derivatives (CNDHT and CNDT) act as effective corrosion inhibitors for LWCS in 0.5-M H 2 SO 4 with inhibition efficiency reached about 75 and 79%, respectively, at a concentration of 0.1 g L –1 . The impact of exposure time on CNDHT and CNDT at 25 °C was studied using weight loss. The absorption parameters were obtained from the linear fitting of the experimental data to Langmuir, Temkin, Flory, and Frumkin models and the kinetic-thermodynamic models.
ISSN:2198-4220
2198-4239
DOI:10.1007/s40735-024-00932-3