Process to strip gold plated pins

[rrantique]

https://www.youtube.com/watch?v=J07...UqxnLl7qXvhiNDHgi5I4dWG&index=1&nohtml5=False
This video shows gold plating being stripped of pins nice and clean solutions. Anyone know what was used? Can jump into the video around 2:30 and see it.
Fixed the link.
If you watch the video is shows several items going into the solution and gold being stripped off in around 10 seconds.

 

[patnor1011]

It says in description that he was pouring acid and gold in wash water. 8)

 

[Platdigger]

So GSP, would cyanide be that fast?

 

[patnor1011]

It says in description that he was pouring acid and gold in wash water. 8)

Oh well that link you posted somehow opened at end of video and it jumped to some other one.

The one you linked is most likely process utilizing cyanide.

 

[Anonymous]

I watched the long one that was about getting the pins dissolved in Nitric. The main problem seemed to be understanding when the pins were actually dissolved, which they weren't before putting in AR.

 

[4metals]

would cyanide be that fast?

Back in the day I was running a Mil Spec plating shop and we stripped gold plated contacts in Cyanide Peroxide. The parts stripped in minutes, in fact they stripped so fast you had to constantly remove them and check because we were stripping for rejected gold finish and had to save the parts to re-plate them. So you had to stop at the copper plating beneath the gold. You had to be careful because the strip solution didn't want to stop.

In jewelry manufacturing they do a polish using the same chemistry to polish gold, it is called bombing solution. It can easily blow over. (yes I said blow)

The reaction is very fast.