Abstract
The article investigates the anticorrosive performance of diethylamide of flaxseed oil fatty acids. The compound was synthesized, its physicochemical properties were characterized, and its corrosion inhibition potential was tested under aggressive environmental conditions. It was found that the diethylamide forms a protective film on metal surfaces, reducing the corrosion rate by more than threefold. Moreover, the compound exhibits antibacterial properties, helping to prevent biocorrosion. The use of biodegradable and environmentally friendly inhibitors derived from natural oils is highly relevant for industries such as petrochemicals, construction, and shipbuilding. Gravimetric analysis confirmed a high inhibition efficiency of 67.8%. The results highlight the promise of diethylamide as a universal corrosion inhibitor, offering a sustainable alternative to synthetic chemicals in applications requiring both efficiency and ecological safety.