- Joined
- Apr 15, 2023
- Messages
- 112
Over the last year, I've been dumping my waste onto copper without parting the silver. I cleaned out the bucket, removed the copper pieces, filtered and rinsed well. Incinerated the remains and treated with dilute nitric. The solute was negative for silver but I wound up with over a kilo of dirty dried silver chloride which is a complete nightmare discussed on another thread.
My question here today is " what do I have in my solution". I evaporated it down and added sulfamic at +90c to rid the Nitric. The Stannous test looks like Au and I don't see any PGM's. I took 2ml of solution and applied SMB, NH4Cl, and DMG (see pics).
SMB- black sludge precipitate
NH4Cl - has no precipitate
DMG- Gold crystals
Just strange why there would be Au. I did not use any Cl and I incinerated the starting material. If any Cl was liberated from the AgCl and survived, wouldn't the solute have had some AgNO3 in it?
- How should I proceed?
- Did I assay this in a logical way or am I missing something fundamentally?
Thank you for being here and for your remote mentorship.
My question here today is " what do I have in my solution". I evaporated it down and added sulfamic at +90c to rid the Nitric. The Stannous test looks like Au and I don't see any PGM's. I took 2ml of solution and applied SMB, NH4Cl, and DMG (see pics).
SMB- black sludge precipitate
NH4Cl - has no precipitate
DMG- Gold crystals
Just strange why there would be Au. I did not use any Cl and I incinerated the starting material. If any Cl was liberated from the AgCl and survived, wouldn't the solute have had some AgNO3 in it?
- How should I proceed?
- Did I assay this in a logical way or am I missing something fundamentally?
Thank you for being here and for your remote mentorship.