Williamjf77
Well-known member
- Joined
- Oct 30, 2018
- Messages
- 138
Hello everyone, been a while since I posted on here. I processed some gold filled material and one piece was white gold, I probably should have left it out but after my nitric step i incinerated the material then proceed to AR, it seemed to take a whole lot of nitric so I stopped adding and processed the pregnant solution like normal, got the gold. There was still solids ie foils left over so I processed all the solids that were left from first AR treatment. The pieces that were left over reacts with AR but takes forever to dissolve, the original batch was only 120g of mostly 1/10 1/20 12k.
I gave , up got a little gold from the second treatment but still have these foils that are now black pieces that fizz and look like they dissolve in AR but after probably 50ml of nitric in there for probably 1gram of gold I still have this mystery.
It’s not magnetic, it’s shape is too big to be springs or hooks or latches. I thought I just melted the foils and created pieces that were larger but now I’m thinking it’s some PGM metal, I do have a stain with stannous test that doesn’t look like gold.
Any thoughts?
Also there were no problems dropping gold like too much nitric.
I gave , up got a little gold from the second treatment but still have these foils that are now black pieces that fizz and look like they dissolve in AR but after probably 50ml of nitric in there for probably 1gram of gold I still have this mystery.
It’s not magnetic, it’s shape is too big to be springs or hooks or latches. I thought I just melted the foils and created pieces that were larger but now I’m thinking it’s some PGM metal, I do have a stain with stannous test that doesn’t look like gold.
Any thoughts?
Also there were no problems dropping gold like too much nitric.