> before swim read your last post, he had already added some of the
> substance to some previously based (with the old standby) rxn solution
> (containing water).
i don't know tweeker-lingo, so i have no idea to what you added the drain
cleaner.
is this a biphasic mixture?
> the silver pieces fell to the bottom and turned black?
really? no gas evolution? maybe it isn't aluminium after all.
what happens when you dissolve some of the drain cleaner (with
metal) in a bit (not much!) of water?
anyway, just filter the black stuff off. shouldn't matter at all.
> I did a search and came up empty.
try google with "drain cleaner sodium hydroxide aluminum". maybe
your brand of drain cleaner shows up.