Best and Easiest way to refine gold dust to get 99.9% purity
"Best & Easiest way to refine gold dust to 99.9% purity" Current question: July 9, 2021. Q. After using acid and bleach to collect the gold I get this grey slime in with the gold I have tried vinegar, comet, even a mild acid cleaner. It helps but not the answer. What am I missing or not doing right in my process? Robert Burroughs