What is the nominal corrosion potential for aluminum?

The nominal corrosion potential for aluminum is typically in the range of approximately -1.05V. This value signifies the tendency of aluminum to corrode in aqueous environments compared to a standard reference electrode, such as the saturated silver/silver chloride electrode.

Aluminum's corrosion behavior is characterized by the formation of a protective oxide layer, which can greatly influence its corrosion potential. When in contact with electrolytes, this protective oxide can dissolve and expose the underlying metal to corrosion processes, leading to a negative corrosion potential.

The other values presented reflect either incorrect potentials or ranges that do not correspond to aluminum's corrosion behavior. For instance, a potential of -1.10V is slightly more negative than what is typically observed for aluminum, while the ranges provided in the other choices exceed what is standard for this metal. Thus, recognizing that -1.05V represents an accurate estimate of aluminum's corrosion potential is essential for understanding its behavior in various environments.