pins

[Barren Realms 007]

Why not use a sulfuric stripping cell for the pins?
It seems to work well enough for gold plated jewelry,
wouldn't it work the same way for the pins?

Sincerely; Rick. "The Rock Man".

If there is no solder on the pins the cell should work fine.

 

[Chumbawamba]

I have a whole mess of pins that I'd finally like to get around to processing. It's from a variety of sources, different base metals, lots of solder, some bits of plastic and ceramic and other materials. The lot weighs maybe a total of two pounds.

I plan to go through it and clean them up, cut away large sections of base metal and then I was thinking an appropriate procedure might be to pour in some 50/50 nitric and put it on the hot plate and agitate occasionally (or with a bubbler), then decant and wash the left over stuff a couple times to get rid of the nitric, then hot HCl to finish the job (or maybe I should use AP?), decant and filter, wash, then HCl + Bleach to get the remaining gold into solution.

Did I do my homework correctly?

 

[Harold_V]

Did I do my homework correctly?

Not in my opinion. I didn't read anything about incineration, even when going from nitric to HCl. That can prove to be a mistake.

Harold