first attempt at self PM recovery

**EcoSafe** · 12-03-2011, 12:04 AM

pardon me but, are you all assuming this is the only forum I read or belong to. secondly I have a comercial fume hood I bought on govdeals. thirdly it is out side.
fourth you are all absolutly correct, do not attempt this unless you have studied the process. the very dangerous chemicals used. and studied all safety issues and are prepaired to use them.
I will not post the process as im not qualifyed to relay the info, I plan to post only costs/profit and wieghts of scrap material and results.

**gustavus** · 12-03-2011, 09:30 AM

Originally Posted by olddude

pardon me but, are you all assuming this is the only forum I read or belong to. secondly I have a comercial fume hood I bought on govdeals. thirdly it is out side.
fourth you are all absolutly correct, do not attempt this unless you have studied the process. the very dangerous chemicals used. and studied all safety issues and are prepaired to use them.
I will not post the process as im not qualifyed to relay the info, I plan to post only costs/profit and wieghts of scrap material and results.

Figuring out cost is easy,

It takes about 38 ml of nitric acid to dissolve 1 troy oz. of silver.
It takes 48ml of nitric to dissolve 1 troy oz. of Sterling Silver.
It takes about 79.3 ml of nitric acid to dissolve 1 troy ounce of copper.

Over at GRF you will find threads pertaining to the percentage of silver one should expect to recover per pound of mylars your processing. Since everything I process is my own I have no need to create and keep analytical charts.