4]M of the inhibitors at each studied temperature respectively, in absence and presence of halide ions, determined by extrapolation of Tafel lines to the corrosion potential .
4]M of the inhibitors at each studied temperature respectively, at absent and presence of halide ions.
The presence of halide ions in the corrosive medium containing benzaldehyd thiosemicarbazone compounds inhibited the corrosion of iron base glassy alloy.
On the basis of heat of adsorption, activation energy and the experimentally observed increase in inhibition at low temperatures, a physisorption process is proposed for both benzaldehyde thiosemicarbasozone compounds and halide ions.
Three salts--KCl, KBr, and KI--were used to introduce the halide ions in solutions.
The inhibitive action of these halide ions could be ascribed to their chemical adsorption on the surface of nickel.
Therefore the effects of halide ions were lesser than on the mechanically polished nickel where it is easier for the halide ions to adsorb due to the active sites on the nickel surface.