So I tried to refine some of my gold powder with hydrochloric acid and hydrogen peroxide 3%. I read that that was okay to use for refining. But I couldn't find a solid answer on how to precipitate it. Either copper or smb? I felt copper wouldn't be helping clean it purify the gold so I used smb. The good dropped but it's very fine particles and doesn't want to settle so I'm not sure this was a great idea. I read that this process was good for refining but the gold the way it is now isn't going to be easy to clean and wash and rinse. Did I do something wrong? Was I simply wrong to use this process for purifing gold in the first place? I tried researching this but only found examples of people accidentally dissolving their gold in AP. Then they would cement with copper.
Refining gold powder in hydrochloric acid and hydrogen peroxide
- Thread starter Rreyes097
- Start date
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You can dissolve Gold by HCl and Peroxide, but you need much higher strength around 20-30 % I'd guess.
Precipitation as normal.
Very fine particles hints to low concentration, so I'd guess you diluted it too much during addition on too low concentration Peroxide.
Well some did dissolve. And I precipitated it. But it was far too slow. So I stopped using that method.
