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What does superficial oxidation mean?
my text book says Mg superficially oxidises at room temp.
and on Al - 'superficial oxide layer forms at room temp'
and on Al - 'superficial oxide layer forms at room temp'
I believe its talking about forming an oxide layer on the surface of each element, thus the superficial.
Basically the outer most Al/Mg reacts with O2 in the air to form the oxide, this then creates a barrier against further oxidation, as the O2 cannot breach this to react with Al/Mg inside the layer, thus the oxidation remains superficial.
Basically the outer most Al/Mg reacts with O2 in the air to form the oxide, this then creates a barrier against further oxidation, as the O2 cannot breach this to react with Al/Mg inside the layer, thus the oxidation remains superficial.
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