OP - Original Poster. Or, the first person to post and start the whole thread.OP??
OP - Original Poster. Or, the first person to post and start the whole thread.OP??
Shark, thanks for the answer, looks like I hit post before I was doneOP - Original Poster. Or, the first person to post and start the whole thread.
Original PosterOP??
You did not say how you prepared your AR.View attachment 66721
Solids on bottom before decanting off solution after letting it sit overnight
The cloudiness is probably Copper(I)Chloride.View attachment 66722
End result after a first wash with distilled water, and that is the state it is in at the moment, so is it contaminated, and do we know with what?? Or do I do what Adam had suggested and start giving it HCL washes and see if it goes away??
That means original poster ie yourself.OP??
Curious as to what the sulfuric will do?? Just to have a better understanding.Much different than I thought.
I was under impression you started with AP not AR.
Regardless yes you took several metals into your AR.
Yes boil with HCl, rinse real well and do the AR get metals in solution add some mils of sulfuric acid filter real well then SMB sodium metabisulfite again.
Until you get all the base metals cleaned out.
You will see the gold powder getting cleaned up (color more brown and then even lighter) and looking much better holding tighter together.
Less powder like (clumping together better).
Sulfuric will drop Lead.Curious as to what the sulfuric will do?? Just to have a better understanding.
Had used AP to clean the boards, then AR . Sorry for any confusion
Do you know which of the metals would cause the purple powder? I will do the HCI washes after a little more research. Trying to understand which metal I picked up, first time in five runs that this has come up. My thought is if I know, I can maybe relook at process and avoid the extra use of chemicals in the futureMuch different than I thought.
I was under impression you started with AP not AR.
Regardless yes you took several metals into your AR.
Yes boil with HCl, rinse real well and do the AR get metals in solution add some mils of sulfuric acid filter real well then SMB sodium metabisulfite again.
Until you get all the base metals cleaned out.
You will see the gold powder getting cleaned up (color more brown and then even lighter) and looking much better holding tighter together.
Less powder like (clumping together better).