Free and Wilson correlation between the molecular structure of some imidazolines and their corrosion inhibiting properties

In deaerated media containing hydrogen sulfide, the inhibition of the corrosion of N 80 steel by a homologous series of imidazolines was measured potentiokinetically. The data obtained were correlated to the structure of these molecules by means of Free and Wilson relationships. These correlations, allowed the behaviour of some derivatives to be predicted successfully.