Corrosion Inhibition of Mild Steel by Date Seeds in 1.0 M Hydrochloric Acid Solution

Abstract

Corrosion, responsible for estimated damages of 3.4% of the global Gross Domestic Product (GDP), poses a significant threat to industries. Corrosion inhibitors can mitigate the effects of corrosion. While inorganic corrosion inhibitors are effective, their environmental impact raises concerns. In contrast, green inhibitors from renewable sources, such as Date Palm Seed Extract (DPSE), offer an eco-friendly alternative. Date palm seeds, often considered waste, are rich in fatty acids and bioactive compounds like lauric, myristic, oleic, phthalic, caprylic, and palmitic acids. These compounds, along with heteroatom compounds, readily adsorb on metal surfaces. Additionally, the seeds boast bioactive elements such as polyphenols, flavonoids, and condensed tannins, notably gallic acid, enhancing antioxidant activities. This study explored the corrosion inhibition potential of date seeds on mild steel immersed in 1.0 M hydrochloric acid (HCl) solution.