Hello, I honestly doubt, that the rest is bismuth and silver, looks like some iron from non magnetic steel was pressent or other hard to burn metals (tantalum from capacitors???). Bismuth burns completely, silver and gold make one bead. XFR never showed me bismuth in bismut cupeled gold or silver or AuAg alloy... Something like that happend to me with iron, but not such huge extend and bead formed... Dont know, what to do... HCl? HNO3? Cupel more? Your guess is as good as my... I would try to cupel a small bit with more bismuth (30-40:1) in 3-5 portions, because is easier than chemical route for me... Looking forward, how will this adventure end...
Do you preheat your mold or ceramic with borax?? Wil help with the melting and not sticking to the cup. Also when using melting powder and slightly shaking the ceramic cup will help the separation process of junk and metals. Fun video, very interesting!
in fact, it was a material with a very negligible content of precious metals. Maybe a few grams of silver and up to 1 gram of gold. It was clear that after electrolysis the precipitate contained a large amount of undesirable impurities. It had to be roasted and treated with Hno3+H2SO4 and then with aqua regia
Try make a little cyclone dust separator for the hammer mill instead of that bag, as dust just pases right out, i know you got your mask on but it will help keep everywhere clean and you never know might make it even easier as you can just empty into the hammered mix.
The average wattage was about 250-400. 10-15v. 15-26 amp. In this case, I was going for efficiency to get it done quick. Pulling 1.5 amp at 2-3 v would take at least a week to do what I did in 10 hours with higher amp and volt. That's why I didn't like the beaker method because copper would not hold on to that stainless steel plate and would fall down because of high amps and volts.
I have, it's magnetic. Most of it was cohesive but a lot of it was falling down in chunks. I've seen that before because of high volts and amps, or it could be something else.
I had to put it aside for now. I'm working on my regular job for now to pay down some of my debt. But I do plan to get back to it, I have a project in process, but not sure when I will finish the video.
@@MetalScrapLab it's usually aluminum plated foil or ceramic and the legs are mostly tinned copper. Silver is pretty rare. Some high end audio ones probably contain precious metals but they are very expensive lol
I do talk in my other videos specially when scavenging. I really like the silence and only give information that matters. I don't want to overload people with bla bla bla.
