“…In this context, the plant extracts from diverse parts of plants such as fruit, root, leaf, bark, stem, and peel have been used extensively as efficient corrosion inhibitors for numerous materials in several electrolytic solutions because of their biodegradability, versatility, renewability, biocompatibility, low cost, reliability, and simplicity. Phytochemicals with different heteroatoms for instance sulfur, nitrogen, and oxygen in the form of heterocyclic rings and polar groups have been extensively examined for corrosion inhibition. − Essential oils are more promising owing to their low toxicity, from the environmental viewpoint. In recent years, numerous authors − reported that essential oils can displace chloride ions from the solution–metal interface because of the competitive adsorption, and these adsorbed layers act as defensive barriers.…”