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Thank you. 👍

Probably not. It would be very difficult to maintain an electrical connection. A leaching solution would probably be better iodine can leach gold plating. 👍

@ thank you I’m very new to all of this but from my job I got a buuuunch of circuit boards and glassware aswell as porcelain and am trying to learn I would love any pointers you have for me because I have a decent amount and would like to do it right and not just destroy or waste it all

The first tip I will give is before jumping straight in, do some reading and research. Check out the gold refining forum on the Internet and just read some comments. There will be people on there who have made mistakes when starting out, and there's some good advice for the problems they came across

Once you have researched, do small test batches to get comfortable with the reactions.

I ordered these items from the Internet. From Etsy.

Thanks man. It wasn't too difficult. Time consuming a little, but it was ok. I believe a stronger concentration would have been better, and I would have probably done them all in one leach. But i was happy with the result. I might use the leach again. And I think I'll get myself to the junkyard and get myself some old car batteries and drain the sulphuric.

The solution that's remains is mainly copper acetate

@@3-2preciousmetalrecycling I’ve Done Two Rounds Of Gold Plated Pins, Gold Fingers, Gold Plated Connectors, Small Gold Plated Parts And Pieces From Cell Phone Boards. Each Batch I’ve Filtered Off The Particles And Foils From The Spent Solution. I’ve Kept The Solution In A Separate Glass Jar To Use In A Big Glass Container Of Gold Plated Boards, TV Runner Boards, Misc Gold Stuff. It’ll Take A While For It To Be Dissolved In The Solution You Said It’s Copper Acetate. I Was Going To Put A Small 50-100Mills Of Hydrogen Peroxide To Help It Along. That Should Be Fine You Think ?? Also I Wanted To Ask Since I’ve Been Doing This And Moving Through The Steps. When I’ve Used That Copper Acetate After The Next Run Of Boards. If I Stick Some Steel Angle Iron In It Will It Precipitate Copper From That Solution ?? Then If it Does Release The Copper What Would That Solution Be Called ? The Technical Name For It After Copper Has Been Precipitated ? Thanks for Answering All My Questions I Appreciate It Brother !!

The solution was diluted, yes.

@@3-2preciousmetalrecycling hmm but Why? I see some people do that and I see some don't.

Small amounts of silver chloride can dissolve in a concentrated solution. Silver chloride is insoluble in water. Adding tap water helps to cool the solution and precipitate these small amounts of silver chloride, which then get filtered. The solution also increases every time I filter it due to ensuring all the pregnant solution is washed from the sides of the beakers.

@3-2preciousmetalrecycling Appreciate the responses brother. I've got a batch right now cooking in some acid.

Awesome. Hopefully you get a good amount 👍

The majority of the boards were fingers without any solder on. The small depopulated boards still had small amounts of solder on. this doesn't harm the reaction

It shouldn't dissolve any gold. Gold needs to be oxidised to dissolve. The amount of h2o2 in the reaction would only oxidize a small amount of the copper to get the reaction started

@3-2preciousmetalrecycling Yes, it dissolves very small amounts of gold. Next time you do this, throw some sodium metabisulfite in it and you'll get some orange precipitate. It's very little however. Youll spend more on the sodium metabisulfite that you throw in, than the gold you get out. Lol.... But since you're working with copper, the sodium bisulfite will also precipitate copper, so you won't even see the gold if you were to do it. I work with silver/gold rocks with zero copper though. Sodium bisulfite does not precipitate silver. Only gold/copper/and platinum.

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You could either ion exchange by dropping in a piece of steel. Everything below steel in the reactivity series of metals will drop out. Alternatively, you could place 2 carbon electrodes in and remove everything with electrolysis

I was running it between 5 and 8 volts and under half an amp if I remember correctly. Sulfuric acid and a nitrate salt would make a weak nitric acid, and as soon as you added your electrode, the acid would eat it up. I used the silver nitrate crystals as it's the cheapest option for me. If you can do it cheaper by dissolving silver bullion, by all means, use that method. The end result will be the same. Thanks for watching 👍

Thank you. And thanks for watching 👍

Thanks for watching 👍

I honestly don't know. I have no experience with dishes.

Watch glass prevents large evaporation and it prevents anything unexpected from falling into the solution

With evaporation can you have a loss of gold?

Not much but it's a waste of acid, evaporating and re hydrating is another way to rid the solution of nitric acid excess. So I wouldn't imagine that much of a loss

Thanks for watching. Unfortunately, as my mother used to say to me, I have a face for radio and a voice for photographs. I use the ai voice to make sure the video is understandable to everyone as I have quite a strong regional accent

Sulfamic acid is used to remove any lead (Pb) present in the solution. The sulphamic acid reacts with the excess nitric acid to produce sulphuric acid. The sulphuric acid converts the lead chloride to lead sulphate, which is insoluble and precipitates from the solution. This can then be removed with filtering

Thanks for watching 👍

Glad you enjoyed the video. Thanks for watching 👍

Thanks mate 👍

It does indeed

Ofc makes

I have one I just rarely use it

Kept grinding in the pestle until it fits through the sieve

What? That's pure silver crystal man. You don't know what you are talking about. You can't make sulfates when there is no sulfur involved. The method he showed is how most people get four nines or five nine fine silver.

For my understanding, it makes a weak dilute hydrochloric acid. Traditionally, hcl is made by reacting sodium chloride and sulphuric acid and liberating the hydrogen chloride gas, which is dissolved in water. When I make hcl myself, I use sodium bisulphate instead of the sulphuric acid

I use 50 grams silver nitrate crystals to every 250ml water. 👍

@3-2preciousmetalrecycling excellent thank you!!!

Thanks man. Who would have thought washing gold you could lose so much

Thanks for the tip, Also, thanks for watching 👍👍

119 degrees Celsius

That's an absolutely brilliant idea, I really like that. I had thought of something similar but a bit bigger for de-populating boards. Boards heat up solder melts, and components fall out onto a tray. I keep thinking of building it, never get round to it. I'd never even thought of an automatic chip crusher. Thanks for watching 👍👍

Thanks for watching 👍

I agree. That was the point of the challenge. I normally get my gold bearing material for free. I've always thought of eBay to be a rip-off. It would have been nice to get more back than I spent, but to be fair, I got almost all of it back. And it shows people that the ewaste on eBay is well overpriced and not to buy it. I should also say that the purchases were all "buy it now" Maybe if you could win a few bids for cheap, you could make a profit. Thanks for watching 👍

It all adds up. Thanks for watching 👍

Thank you very much. Also, thanks for watching 👍👍

Thank you for your feedback. Also, thanks for watching 👍 👍