there's something wrong ppls, im not here to say that i want to put 5 liter of acid on hot plate in a room 1x1 meter without windows, i'm not so stupid, i know that using acids an other stuff can be really dangerous, i just say that for me doesn't matter to know every chemistry rule, i just want to try to make it, i'm not up for a gold run, i dont want to become rich refining gold, i just have some scraps, and try to refine it, nothing else.