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ok, so this last bit of gold is going to be uh...
just the finest particles they will float around in the goo
so all this has to be filtered so what I'm doing here is filtering this last
bit of gold out this stuff that I'm using here, this is all
saturated with copper so uh...
once I filter it I'm saving it in this five-gallon bucket over
here more testing testing testing
before you dispose of anything or precipitate anything or electroplate anything out
you want to know exactly what's in it
if at all possible well especially precious metal content wise
so we're gonna test it what i have here
is a known copper chloride solution this just has copper dissolved in HCL
nothing else this is known gold solution, it's just gold
dissolved in HCL clorox mix
this is my unknown solution, this is the waste after the treatment of the
PC cards, so... there is probably other stuff in here besides
copper like tin zinc possibly
nickel, mostly copper but there could also be some gold dissolved
in here, especially since we were using air
and or hydrogen peroxide to speedup the process of dissolving copper
that can sometimes lead to some gold getting dissolved in there
so, first step, we're gonna test the copper solution
here's my known copper solution here is my stannous chloride which is just
tin solder wire dissolved in HCL I'll just touch that on there like that
I'm going to get it in the sun so you can see
see my thing, it picks up some of that green HCL
actually I think it if you get enough on there it will turn green
next we will test the known gold get another swab
stannous chloride and test
and you see we get this nice brown and it kinda goes purple
nice darkening a noticeably different result than from the
copper here next we're going to test our unknown solution
I'm going to use the other end of this swab here
alright, as I'm preparing to uh... electroplate out copper
from my solution, what I'm going to do first is I'm going to throw a big chunk of copper
in there if you're processing computers you will probably
find some of the heatsinks off some of the processors anyway
that is where this chunk of copper came from. It's a good selection because it has a lot
of surface area actually
there's a lot of these fins here the object is to uh...
let it dissolve and uh...
if this uh... fluid has any action left
what i would like to see happen is, i would like to see the copper dissolve
and uh... if there is the slightest bit of gold in solution
or any other precious metals in solution they will precipitate out
and i will give this a few days to settle and syphon the water off the top
or, not the water but the solution of the top
and then I will know for sure that the solution is
quite well ready, uh... it will be saturated with copper
and uh... and I will know for sure that there are no
precious metals if there is any sludge in the bottom of the
bucket, i'm gonna filter that and process that sludge back through
as though it had precious metals in it.