Base Metal in my AP

[skeeter629]

I have what appears to be tin from the memory cards i was processing in bottom of my acid/peroxide bucket. How can I seperate it from the gold fingers? I thought I had it all trimmed away, but I guess I missed some on this batch.

Thanks in advance.

 

[banjags]

Are you referring to a grey powdery looking substance in your AP? If so that is copper chloride. You will need to add more HCL to you AP.