what is oxidizing aluminum for
Aluminum being the most abundant metal in the earthâs crust (at 8.2% of the total metals) is never found free in nature. Aluminum is reactive and will react spontaneously with water and/or air to form aluminum oxide.Aluminum oxide, Al2O3, forms a stable passive layer that protects aluminum from corrosion or further oxidation.This layer is about 4 nm thick and will provide corrosion protection as long as this oxide layer is stable. Aluminum is an amphoteric metal and can react with an acid as well as a base.The protective layer of aluminum oxide will deteriorate in environments with high or low pH or even in environments where aggressive ions are present.luminum is reactive and will react spontaneously with water and/or air to form aluminum oxide. Aluminum oxide, Al2O3, forms a stable passive layer that protects aluminum from corrosion or further oxidation.