
Corrosion inhibitors are chemicals that are added in low concentrations to reduce the corrosion rate of metals or alloys. They significantly reduce the deterioration of the material and enhance the lifespan of the structures or components made of metals. Corrosion inhibitors can be classified into precipitation inhibitors, passivity inhibitors, and others (cathodic inhibitors and volatile corrosion inhibitors) based on the type. Corrosion inhibitors can be categorized into organic and inorganic corrosion inhibitors. Amines, cyclic amines, quaternary amidoamines, benzotriazoles, phosphonates, diethyl amines, imidazolines, fatty acids, and nitrates are classified under organic inhibitors.