Geo
Well-known member
This is a short video I just posted to youtube on how I remove the copper from spent solutions.
https://youtu.be/0ZgWF_SepRk
https://youtu.be/0ZgWF_SepRk
Sodium thiosulfate is also known as fixer for those of us old enough to realize that photography was once done with film and chemicals, rather than a phone!
Yea, I dried a one gallon paint can full. I melted a little nugget and took it to the scrap yard to have it tested. It was 92% copper and 6% tin with the remainder being a mix of everything. He said he would pay red brass price for it if I melted it. It is chunky when wet but crumbles to dust when it dries. I haven't thought of using the thiosulfate but I still have a few pounds of crystals. I'll add some to the next barrel. Any idea how much by weight for thirty gallons?4metals said:Geo,
Nice video. Have you ever dried out your copper that collects in the bottom of the bucket? I am curious as to the consistency. Can it be sifted or crushed to a fine powder?
I have also read that a small amount of sodium thiosulfate aids at making the copper fall from the iron more easily. Sodium thiosulfate is also known as fixer for those of us old enough to realize that photography was once done with film and chemicals, rather than a phone!
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