ABSTRACT
Corrosion in aqueous solutions is by far the most common of all corrosion processes. Aqueous medium is provided by water, seawater, and various process streams in industry. Moisture in atmosphere and water in soil account for the aqueous corrosion in these media. In all of these cases, water is hardly present in pure form. Rather, various salts and gases remain dissolved in it and their dissociation renders the water somewhat conducting. For all practical purposes, it acts as an electrolyte. The chemical nature of this electrolyte may be acidic, alkaline, or neutral.
