Gold recovery and gold refining from PCB board. Acid/Peroxide and Aqua Regia. / gold foil / 

Thanks! :)

Thanks! I try to show better and better quality videos.

distilled water

Al final del proceso, el agua se evapora.

Yes, if you dissolve AR, use urea instead, it can only be omitted for small amounts.

Yes.

Thanks for the tip, I haven't tried it yet. :)

Plz give me link of vido

@@zoyajabeen8197 just search codys lab videos I dont remember the name, all you need is a burnt piece of copper and thats it, hcl will now dissolve base metals faster

@@zoyajabeen8197 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-BxU2n6BibE4.html

There is no soldering on these. But I usually soak it in dilute acid if I want to remove it.

HLC works good on solder

Yes, you can work with it.

Sir washing soda(powder) also called sodium carbonate

Too concentrated a solution may dissolve a little gold.

Videoda gösterilen hammaddeler çok eskidir, kaplama hatalarının elle onarıldığı, dolayısıyla altının fiziksel olarak elle çekildiği bir dönemden gelmektedirler. Bunlar kaliteli ve uzun süreli kullanım için tasarlandı, önemli olan tasarruf değil kaliteydi.

The end result will be essentially the same. I can't buy hydrazine.Thank you for your comment!

@@qwethengoldrecovery another way is to use hcl and hydrogen peroxide to lift the gold of the boards thenyou can use hcl and bleach to disolve the foil.

Your right mate not everyone can get the same chemicals there is more than one way to skin a cat

Acide+peroxide is cheaper than AR, and A/P can be reused .

AR cant be used, you have to dissolve ALL BASE Metals before it will than dissolve the gold. You dont want this because it makes for contaminated gold with copper tin nickel etc. This way works better, you can also use only nitric but that cost more

Ill add this, gold stripping can be used goldex I believe the name is, Iodine method or cyanide are all ways you can strip the gold than recover it in certain ways from the solution. Goldex is good for thin plating on thicker material not thick plating. Or you can use reserve Electroplating with sulfuric acid but once again you shouldnt use it on all material.

Adding too much peroxide to the solution may dissolve some gold.

If something went wrong, there is still a way to recover it.

So in summary: 2.5 dl of water 3dl hydrochloric acid (30%) 1dl peroxide (35%) Less peroxide is enough, but since it "weakens" all the time, I tend to put more into it.

@@qwethengoldrecovery Dear.Master, what mean "...dl" or Master can give me on mililitre (ex : 100 ml water and ,,,, Hcl and ,,,, Peroxide) and how can to get result with short time (not weekend, maybe can finish a several day) thank a lot 🙏🙏🙏

@@salamander3728 what unit of fluid do you use? (dl=deciliter) 1dl = 100ml or. 1dl= 0.2113 pint

@@qwethengoldrecovery Dear Master, I really appreciate all your explanations, thank a lot and GOD Bless You 👍👍👍

Do is ml

😉

It is really very rare to have such a quantity, I also get 0.2-0.5 grams in countless cases. Some of the material in the video is fairly old enough from around the 1990s. It is not comparable to today's manufactured materials.

@@qwethengoldrecovery how about 25 old processors.. in you estimate how much gold will recover?

@@jaybertrillera1746 It depends a lot on the manufacturers and brands.

Please make a video of the better solution and share it with us

Yeah go on lol