badestb
Member
So, I've been digesting circuit boards, gold fingers, and pretty much anything I can get my hands on that are gold plated in nitric acid for a few weeks now. I keep getting this grey or silver substance at the bottom of my beaker which doesn't disolve into the solution and keeps clogging up my filters really badly... At first I thought it was silver but then realized it would be dissolved in solution... What is this stuff? What do I do with and about it?