Quote Originally Posted by gainer
Not a good idea. Aluminum is quite reactive.
I consider Gadget to be the chemistry authority here and he is quite right. Aluminum is highly reactive. You will most likely get some ugly results that are unmistakeably visible on your film and prints.

Stainless steel is OK for most chemicals we use, but don't use it for selenium toner. The selenium reacts with the iron in the steel. Again, unmistakeably ugly results.