Zinc acetate containing gel pads for electrochemical measurements of Zn samples

Agar gel pads have been used for electrochemical measurements for some time. For zinc in particular, a standard method for measuring the stability of the corrosion product layer is being established. The main interpretation factor is the corrosion product layer resistance RL, as it is easy to determine and interpret. A high corrosion product layer resistance indicates a high level of protection. However, it is not yet known how low the corrosion product layer resistance is for freshly produced zinc samples. As zinc is highly active, it reacts immediately with the environment to form a corrosion product layer, which affects the corrosion product layer resistance. The addition of zinc acetate to the agar gel pads prevents the formation of a surface layer and destroys existing ones. This makes it possible to measure an almost corrosion product-free zinc surface. This is important in defining the range of corrosion product layer resistance for a protective surface.

Automated summary

Agar gel pads have been used for electrochemical measurements, with a focus on establishing a standard method for measuring the stability of zinc corrosion product layer. The corrosion product layer resistance is a crucial factor, as higher resistance indicates better protection. However, the resistance level for freshly produced zinc samples is still unknown. Adding zinc acetate to the agar gel pads can prevent the formation of surface layer and allow measurement of almost corrosion product-free zinc surface.