RESUMO
A great deal of interest has been paid to studies on the corrosion of zinc in various media [1-7]. Mention may be given to the corrosion of Zn in dilute aqueous solutions studied by Weast et al. [8]. The anodic and cathodic behaviour of Zn in neutral electrolytes containing Cl- ions has been studied by Kadyrov [9]. The action of some organic inhibitors were discussed by Hacker-man and Markrides [10]. The inhibitive effect of poly vinyl pyroiodine and polyvinyl pyridine on the corrosion of Zn. in sulphuric acid was investigated by Moustafa et al. [11]. The inhibitive effect of polyethylenamine has been investigated in hydrochloric acid solutions. The aim of the present work is to study the effect of variamine blue and fast blue of different concentrations on the anodic behaviour of Zn in media containing oxidizing ions as [Fe[34]], in ferric chloride solution, using anodic polarization