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Products of aluminum sulfate electrolysis

  1. Aug 26, 2011 #1
    I could not find anything online indicating that such was so, but...

    If electrolysis of a solution of zinc sulfate results in zinc and sulfuric acid, is it also correct that electrolyzing a solution of aluminum sulfate will result in aluminum and sulfuric acid?
     
  2. jcsd
  3. Aug 27, 2011 #2

    Borek

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    Staff: Mentor

    It doesn't want to be easy. Aluminum is highly reactive, so its presence in water may mean you will be just electrolyzing water and producing hydrogen, instead of depositing aluminum. That being said, zinc is also reactive, yet with a correct choice of bath composition, it can be electrodeposited on steel.

    It can be easier to use nonaqueous solution, or even some molten salt. After all, that's more or less how the Al is produced.
     
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