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During electrolysis of molten aluminum chloride ,why are carbon anodes burnt away?

April 26, 2017aluminum anodes carbon Chemistry chloride electrolysis Mathematics molten

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During electrolysis of molten aluminum chloride ,why are carbon anodes burnt away?

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The electrolyis of Aluminum chloride involves it being dissolve in chrysolite, which contains oxygen to lower the temperature in which is is made to melt. During electrolysis, oxygen is released. The high temperature plus oxygen burns away the carbon anodes.