Electrodissolution of lead sulfide in different acidic media

The Nature of Passivation of Lead Sulfide during Anodic Dissolution in Hydrochloric Acid

“…Due to the high porosity of the film formed it has been found that there is unobstructed continuous dissolution of the surface. In higher concentrations of the acid (from 1.0M and above) (20) it has been found that more oxidation products are formed at the surface at various stages of polarization (indicated by the appearance of additional peaks). An attempt is made here to establish the nature of the passivation behavior of lead sulfide in hydrochloric acid at different potential regions through detailed surface analysis of the products formed.…”