Hi all. Let’s get right to the point. I thought I’d try and extract all the gold from my old filters by adding them to the foils for the hcl/ bleach process. All went well, solution went yellow and filtered into a flask. But I’m left with a yellow mash in the filter that won’t let go of the aucl (positive stannous test). Anyone got any hot tips of getting the gold out?
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk