Why is the corrosivity of aluminum chloride AlCl3 stronger than that of other chlorides?
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When querying the data, it was found that the corrosivity of aluminum chloride AlCl3 is always stronger than that of other chlorides? How would you all explain this? Is there something special about Al itself?
Aluminum chloride AlCl3 is more corrosive than other chlorides because it is a strong acidic substance that can form hydrochloric acid HCl, and HCl is highly corrosive to metals. Furthermore, the high electronegativity of the Al atom in the aluminum chloride molecule leads to stronger chemical reactions with other elements, resulting in greater corrosivity. At the same time, aluminum chloride is also a very strong Lewis acid; it can undergo intense acid-base reactions with other substances, which in turn increases its corrosiveness. Therefore, these special properties of aluminum chloride AlCl3 make its corrosivity stronger than that of other ordinary chlorides. .