How to Extract Gold from a Circuit Board | Earth Science

You can make gold appear from something that isn't gold... And this is chemistry, not alchemy!

Bang Goes The Theory Series 5
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[jamesmiles]

I wonder how much that process costs in comparison to the price of the gold obtained.

[Axmirza]

Lmao why was the editing and music so intense? It's like a couple of bucks worth of gold, it's not life or death whether he loses it

[hlx]

I am so triggered when people call lab procedures recipes.

[jasongurr]

its just a normal chemistry process why all the drama? Wait its the BBC!

[pyromen]

“This is way beyond school chemistry” lmao our 9th grade (age 14) science class involved making aqua regia as an educational lab. It’s literally just mixing two liquids...

[RealUlrichLeland]

Could you add the urea by pissing in the bucket?

[SillieWous]

Lol the amount of gold on a pcb is negligible compared to the copper they just trow away😂

[norma]

I don't even know if that quantity of gold is enough to pay for all the chemicals you used to extract it.

[aserrodriguez]

He might have lost a ton of it when he poured out the "green liquid" after he liquefied the gold. Because it's very dense so allot of it might have gotten stuck with all the other crap in the container. You have to really rinse that all down to get all of the material out. That's why gold miners have WASH PLANTS! that's where you separate the gold

[colshapedbutter]

Please don't use Windows for circuit boards use Mac's instead

[Rob_aka_CancelProof]

You can confirm it's there by dissolving some tin in dilute hydrochloric acid making stannous (tin) chloride an extremely sensitive test for the presence of gold in solution 1:57

[boldsword]

This topic was covered thoroughly (and much more informatively) about 6 years ago.

[nikedemo]

Thank you Cody's lab for helping me see through these lies.

[mmnormph]

1:00
My expectation: Strong enough to dissolve a human body.
The reality: Strong enough to dissolve gold.

[alexdarcydestsimon]

That's really a show of its own.
To intense and speedy voice.

Also doubious :
You don't need complex receipe. You don't need to dissolve the gold either.

Usually, nitric acid will disolve everything but gold in less than an hour.

Then you dilute the liquid by pouring the solution in double the water. Then you rinse your bucket with water, add that to the solution, then you filter out the gold from the solution with coffee filters.


Repeat the whole nitric acid + filtering process will help you get rid of any other remaining metal.

If some other metal remains : rinse well and try to dissolve with chlorhydric acid, rinse filter and so on.

Absolutly DONT mix chlorhydric and nitric or it will dissolve your gold.

[itchytastyurr]

he made purist GREEN! why not just poor mercury on the boards to absorb the gold, the evaporate the mercury to leave the gold behind? the mercury will collect in a separate container through tubes and condense.

[gregddr]

Gold have different colours at different particle sizes...it might even turn blue when it is made into a colloid i suppose...

[RCapricot]

Did anyone else get the Blackadder reference at 1:59? Some pure green.

[kingcosworth]

I hope that "I've made pure Green" was a Black Adder reference.

[yazeed_o]

i love how this video started so early without a long boring intro . . .