Mass loss and thermometric methods have been used to study the inhibition of aluminium corrosion in HCl solution by four Schiff bases: 2-anisalidine-pyridine; 2-anisalidine-pyrimidine; 2-salicylidine-pyridine; and 2-salicylidine-pyrimidine. Values of inhibition efficiency obtained from the two methods are in good agreement and are dependent upon the concentrations of inhibitor and acid.
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