Quote Originally Posted by Photo Engineer View Post
I would dump everything, but if you insist on a test, if you add acid to Carbonate it fizzez and if you add acid to Sulfite it stinks.

PE
Thanks, Ron. Am I correct in assuming that the black liquid had to be the A solution? (pyrogallol, sodium bisulfite and KBr. It had about 6 years to oxidize in that half full jar.)

Of course I'm going to dump all the old liquids. But I don't want to put any of the new solutions in a container which contained a different one. I'd get new jars first.