สารสกัดจากเปลือกถั่วลิสงสำหรับการเป็นสารยับยั้งการกัดกร่อนของโลหะสังกะสีในสภาวะกรด: Peanut shell Extract as Green Corrosion Inhibitor for Corroded Zinc in Acidic Solution

Atitaya Samontha; Chatchai Ponchio

Authors

Atitaya Samontha Product Chemistry Program, Faculty of Science and Technology, Bansomdejchaopraya Rajabhat University, Bangkok
Chatchai Ponchio Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani

Keywords:

Corrosion, Inhibition efficiency, Zinc, Peanut shell extract

Abstract

The objectives of this research were to investigate the inhibition efficiency of peanut shell extract acted as environmental friendly corrosion inhibitor for zinc corroded at different conditions of the amount of peanut shell extract, immersion time, hydrochloric acid concentration, and temperature. For sample pretreatment, zinc platform with 1 x 3 cm dimension was scrubbed and cleaned using sandpaper and acetone, respectively. The inhibition efficiency of peanut shell extract for zinc corrosion at various conditions was performed using weight loss measurement and electrochemical study. The results showed that peanut shell extract could be applied as green corrosion inhibitor for zinc corrosion. FTIR data presented that there are oxygen atoms and aromatic rings in its structural component. The percent inhibition efficiency of peanut shell extract for zinc corrosion was increased at higher concentration of peanut shell extract, longer immersion time, lower HCl concentration, and also lower temperature.

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Peanut shell Extract as Green Corrosion Inhibitor for Corroded Zinc in Acidic Solution