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Letter 39080
Need alternative to cyanide stripping of
gold [New Hampshire]
January 16, 2006
We presently use a Cyanide bath to strip material of gold and
would like to find an alternate method which is less dangerous.
Gene Artinius
Reclamation - Manchester, NH
First of two simultaneous responses -- January 23, 2006
Hi Gene,
I have tried to use non-cyanide gold strippers in the past, with poor
results. They had to be heated to a high temperature, and took
forever to strip the gold. It was a good thing I got the chemicals in
on trial basis. You may want to call some precious metal suppliers
(for electroplating), or a reputable refiner may know of a good
product they currently use. Hope you find something.
Mark Baker
Process Engineer - Syracuse, NY, USA
Second of two simultaneous responses -- January 24, 2006
Slightly acidified gold chloride as electrolytic etching solution
can be used(object=anode),or aqua regia solution(if electrolytic
method is not possible).
Good luck!
Goran Budija
- Zagreb, Croatia
March 29, 2006
Hello Goran,
Thanks for the input.
Gene Artinius
- Derry, NH, USA
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