Per: DANIELI APARECIDA PEREIRA REIS (Universidade Federal de São Paulo - UNIFESP), Polyana Alves Radi (UNIVERSIDADE FEDERAL DE SÃO PAULO - UNIFESP), Renata Jesuina Takahashi2 (UNIVERSIDADE FEDERAL DE SÃO PAULO - UNIFESP), Adriano Gonçalves dos Reis (Universidade Estadual Paulista “Júlio de Mesquita Filho”)
Abstract:
Corrosion inhibitors are essential for protecting metals against deterioration. The majority of commercial inhibitors, despite being widely used, suffer from limitations such as restricted efficacy and high toxicity. Plant-derived inhibitors, especially Moringa Oleifera oil, stand out as viable alternatives due to their compatibility with metal surfaces and low toxicity. Oleic acid, a monounsaturated fatty acid predominant in Moringa oil, grants the oil superior oxidative stability. Moreover, Moringa is easy to cultivate, with productivity up to 45 tons per hectare, and oil extraction can reach from 35 to 40% of the seed weight. This study focused on the potential of Moringa oil as a corrosion inhibitor in carbon steel. After exposure to a 3.5% saline solution, it was observed a reduction in mass loss of 0.02% compared to untreated samples.