Precious Metal Refining & Recovery, Episode 14:Gold From Dishes

Precious Metal Refining & Recovery, Episode 14:Gold From Dishes

(intro music) Alright everyone, Cody here. So I’m at the local thrift store and I’m looking at glass things And uh, I’m mainly looking for things that have a gold trim or gold plating on them so I’m going to try and see if I can extract the gold from… this sort of thing here. Let’s see what you guys got here. We got some little cups with some gold trim on them, let’s get those I mean, I’m absolutely not going to get more gold out of it than this is going to cost me but you guys get the idea Okay, so, here’s what we’ve picked up around the place. Let’s go see if we can get the gold off. So I’ve got the glass home and it’s
time to start extracting the gold from it. I think i spent about thirty dollars
total on all of these little uh.. gold-plated items. I bought a couple of
other things but here’s the receipt … and there’s no way I’m gonna make that much back on it, and I’ll be quite happy if I get three dollars back but the whole idea is
to show you guys the process. Which should be pretty simple, just gonna put them over here into this plastic bin then I’m going to submerge them in a cyanide
solution to dissolve the gold. So the first thing I’ve done is added a light
because this is probably gonna go into the night my time-lapse camera and put
on some gloves and right now I’m adding some water to the reaction vessel the next
thing to do is to add some sodium hydroxide this will keep the solution basic and will dissolve any oils that are covering the gold surfaces. Now for the sodium cyanide just going to add in a couple of chunks of that… that’s probably fine now I’m going to add in some activated
carbon to absorb the gold from solution this is basically the carbon in pulp
method now let’s let this fill up with water and i’m going to add in some hydrogen
peroxide you see oxygen is needed for the reaction to occur and dissolve the
gold hydrogen peroxide adds a whole bunch of oxygen to the solution you can
see the peroxide is reacting with various things and producing lots of
little oxygen bubbles. so it’s been a couple of hours and let’s have a look at
this and see how it’s coming along. So it looks like this cup here, bring this over into the light, yeah, you can see that the solution is definitely dissolving the
gold that’s good I was kind of worried that it would
be to dilute. Looks like we’re good. So I’m just going to kinda stir this around a little bit; turn over the cups so they can get the other side. Give everything a good mix, and then I guess I’ll just let it go for this the night. I’ll probably stop
the time-lapse camera because… there’s not gonna be much really going on overnight probably Hey, this cut… uh this little cup here is completely done. Excellent. So it’s the
next day and it appears that most of the gold has been dissolved as you can see
so now I’m just removing these dishes from the gold dissolving bath then
putting it over here to rinse off the cyanide. Now to destroy the cyanide I just
use a little bit of household gene destroyer here, little splash of this, and
no more cyanide. Then I’m just putting the rinse dishes over here in this box
and I’ll either reuse them or just take them straight back to the thrift store
haha Yeah, that particular plate does have a little bit of gold on it, but I think it was actually mixed in with the glaze and so it’s really not worth
my time to try to remove.
Oh Because I would have to like grind the plate up. (Kanyon) How do you know it was gold? (Cody) Well, in general if there’s like a gold trim on the glass it’s probably gold because gold is
actually the easiest material to put on and they’re not going to be putting on
more than a few cents worth at a time So what we’re going to do the plates now? Well, I don’t know about the plates,
but I’m gonna make some hot coco. Okay So now what I should have is a
very dilute solution of gold cyanide or rather I’m actually hoping that the gold
cyanide is absorbed onto the carbon by now. The reason i decided to do it in
this method with it as diluted as it is is so that i can determine if this
process would actually work for extracting small quantities of gold. You
see the or in my mind is going to have probably about the same amount of gold
as those dishes did you know by volume even. So if i can extract the gold from
this, then I’ll know that I’ll be able to extract it from the mine so I’m actually
going to give this a stir every now and then lose absorbed onto the carbon for a
little bit longer. See? There’s quite of bit of carbon down at the bottom there It’s probably way more carbon than I
needed, but I wanted to make sure I got all the gold. Before burning the charcoal
to ash i’m actually going to grind it up into a fine powder so it’ll burn
quicker ok so I’m just gonna put the crushed
carbon into the furnace on top of a plate just like that now let it get red-hot
for several hours to burn away the carbon we’ll see what happens so you guys might be wondering how I
know that the activated carbon absorbed all of the gold from the solution well first of all activated carbon
absorbs down into the microgram per leter level so that’s that’s insane but
also have a little test here which I’m going to perform that should be very
sensitive for detecting small quantities of gold but before I can do this test I got to get rid of the cyanide so I have a small sample of the cyanide solution
here and now I’m actually going to acidify it with a little bit of hydrochloric
acid now I know almost everywhere you read
says that you should never let the acidity of a cyanide solution go above uh,
five or whatever because the cyanide will react for using hydrogen cyanide
gas which is true, but hydrogen cyanide is incredibly soluble in water which
means that basically by acidifying it I’ve dot… I’ve not actually done much to
it there is still cyanide solution much the same way that you would have carbon
dioxide dissolved into solution now heat the solution to drive off the rest of
the cyanide now the quantity that’s going to be here so small that if I just
let go up into the air it’s not gonna hurt anything There you go, those bubbles are probably actually
the hydrogen cyanide gas ok now I’ve boiled the water for a little
while and it’s becoming very hard for me to hold I should have all the cyanide
removed from solution so now i’m just gonna drop in a little bit of stannous
chloride if we see a color change to a light purple then we’ll know there’s still gold. If
not, I know I got most of the gold out there you go, there goes the stannous I did not see a noticeable color change
so I know that there’s hardly any gold in solution
(Kanyon) So I wasn’t able to see the bottle
you were…
(Cody) Oh, this bottle? (Kanyon) Yeah do you want to do that again? This is stannous chloride right here notice it’s
basically just hydrochloric acid with a little bit of stannous chloride
dissolved in it along with a piece of tin to keep it fresh. Ok looks like it’s almost
completely burned up that’s very good It’s the next day I’ve let everything cool off I’m actually
amazed at how well this plate has held up its kind of stuck in there but
otherwise the plate is ok and all the carbon is now converted to ash and
actually it’s got a slightly reddish color to it that tells me the right be
some minerals it excellent at some point I should probably show the process of
how to extract the gold from the activated carbon without burning it unfortunately that process requires
temperatures of a hundred and seventy degrees celsius and concentrated cyanide
solutions that process is of course way more difficult than just burning the
carbon so the process of getting gold out of the ashes basically a miniature
fire assay I’ve shown that process many times I think this time I’ll just show
it quick time lapse and we’ll just skip to the part where I show the gold looks
like there’s a bit of gold been in there let’s pull it out and get a better look
at it. There’s my gold that’s pretty you know what that might actually be enough
i could actually put on the scale and weigh it exciting so this proves that I can actually
extract that low quantity of gold ok let’s grab this set it over here on
the scale there it is right about 30 milligrams that’s not bad about what I expected that’s cool so let’s see at a price of
forty dollars per thousand milligrams that be four dollars per hundred milligrams and
this is about a third of a hundred that means I’ve got
a little over a dollar worth of gold here how about that? hope you all enjoyed I’ll see
you next time *outro music playing*


  1. Cody hoysehold bleach and muratic acid disoves that sort of gold off immediatly like washing dishes that fast too!

  2. Cody,I enjoy your videos,but I am concerned about many of the materials and processes in terms of health and enviromental impacts. Many of your vessels and chemicals are impure and you’re getting alot of unwanted side products. You don’t wear proper protective gear or adequately protect your eyes,skin and mucous membranes from exposure to many,many toxic substances. In addition you aren’t adequately protecting the environment and loved ones from hazardous dust,vapors and gases. You are being exposed at an alarming rate and your health will suffer over time.Especially where these heavy metals are concerned,because of the cumulative nature of those exposures. Please be more conscientious for yours and everyone else’s sake!

  3. I wonder if you could extract gold from glass that has been gold fumed. When you vaporize gold and spray it on glass it gets a pink/orange tint. I wonder if you got enough if you could extract the gold from it.

  4. What’s the quickest, easiest, cheapest way to remove gold from dishes if you DON’T care about recovering it? I just want the gold OFF, as easily as possible. Anybody know?

  5. The spatula holding the furnace open reminds me of the demon core where a scientist held a nuclear core open with a screw driver.

  6. I have several gallons of hydrochloric acid that is full of dissolved gold, copper and tin, how do percipitate just the gold?

  7. I watched a documentary 20 years ago of poor people in poor countries doing this for drug lords……my guess is you know a guy that knows a guy….this is old common sense…but the math in a mans vaule at min wage at 40 hours a week in doing this. The company would go broke. A guy would need to work for about 5 bucks for 40 hours.

  8. Question…can a person use a method ever they could dissolve the gold from dishes over a period of time and then drop the gold on the solution once it got to a couple grams?

  9. Hmmm…you spent 30.00 dollars on dishes…and you extracted 1.00 dollar in gold….what's wrong with this picture?

  10. "Hey I just wanted to bring these dishes back"
    "Weren't these gold-trimmed before?"
    "Yeah I just washed them in cyanide"
    "Sir, please leave"

  11. This was really cool. I dont know if the time, energy, and cost of supplies would make it profitable nonetheless the process was cool to watch. I inherited gold plated dishes from my grandmother. I'd love to have the gold removed from them leaving just plane white Bavarian porcelain. These dishes look way too Trumpian or wealthy Russian for my tastes.

    Let me know if you want to extract the gold from these and send me back the dishes. Again though, the cost of shipping plus the supplies might not make it a profitable endeavor. If you are interested, let me know and I'll give you my email address.

  12. I am sad that you felt a need to destroy very useful dishes for a little bit of gold that someone worked so hard to decorate the dishes with.

  13. Oh looky less than a buck of gold that cost over a hundred to extract. Not to mention the time is took to make it happen.

  14. Spoiler alert $100 worth of expense to extract $.30 of gold.
    Not very feasible where I come from, but The Oak Island Boys sure could use your help.

  15. Can't you just use miradic acid and peroxide to do the same type of refining??? I know that's what I use for removing gold from computer boards…

  16. Scrapper's don't give a shit!
    I liken you to a scrapper!
    Nothing is sacred to them! ANTIQUITIES, nothing hell I've seen 'em scrap their own houses, cars, like verrmin chewing on wires!
    They guy that owns the scrap yard that has it all computerized I can admire+
    But people are lucky you can't break into grave yards!
    Oh! wait! They do that too!
    Theres so much gold out there everywhere but when you have to go to the dregs to get the treasure or take from antiquities you turn into a sewer rat!
    Why aren't you in a computer place like RECP?!

  17. Is there a method to remove silver?Your more likely to run into silver plated items at thrift stores and it's a more overlooked yet valuable metal.

  18. I have already tried getting gold from dishes. It's too expensive. The cost of the chemicals is more than what you could recover.

  19. pyrite. Only that, if you get caught with a bottle of cyanide the Govvy boys might make an example out of you by making you into a jailbird.

  20. You've got to be kidding me, you manage to loose the value of these precious pieces, should of resales, you would make far more money.

  21. Your destroying the artistry on those vintage pieces- why bother?
    It’s silly … Why not resell – by the way that’s only a glaze before it’s fired in the kiln ….

  22. hi i have sand .there are particles of gold inside sand glass .how can i recover gold from it ? also give me your email so that i can shsre you pictures of it

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