Видео

Thanks for the kind words, and thanks for watching 👍

Potassium nitrate I've bought from amazon before. Sodium metabisulfite I think can be bought on there, but I get mine from another online supplier, and hcl you would get from a hardware store or ebay it might have a different name such as muriatic acid or spirits of salt

That would be nice

Thank you very much 👍

The gold is around 23k - 24k as there could be some impurities from recovery. But a quick re dissolve and precipitation ensures 24k

@3-2preciousmetalrecycling so for that process is aqua regia the process used? Sorry just new to this scene and have a ton of e-scrap I'd like to mess with.

I used the poor man's aqua regia, which is basically the same thing. When I added the potassium nitrate, it converted into nitric acid inside the hydrochloric acid. So it gives the same results as using hydrochloric acid and nitric acid, which is the "proper way" to make aqua regia. I hope this explanation is useful

@@3-2preciousmetalrecycling one more question if you don't mind. Which method would you recommend for someone just starting out?

If you have access to cheap nitric acid then the normal aqua regia is easier if not potassium nitrate or sodium nitrate is a good alternative. In my video on refining silver rings I show how I make my own nitric acid using sodium bisulphate and pottassium nitrate.

Thanks. I was only expecting 0.4 myself. Thanks for watching

Hi. It doesn't make more than it takes from the anode. The process is used to purify the silver in the anode by removing impurities. Copper impurities will trade places with silver in the electrolyte, and platinum group metals or gold particles will be trapped in the filter. Thanks for watching

You can use a blow torch if you want in a small melting dish. At the moment I'm using a microwave furnace. If you watch my video on growing silver crystals you can see it being used. Thanks for watching

@@3-2preciousmetalrecycling great I may look at cheaper alternatives as gasoline for the touch can be costly over time, I will look into a microwave furnace and watch your video. I assume powder gold is valuable but the real value is in solid forms, great side hobby, this was really helpful for a makeshift. 🙂

Thank you for the kind words. Powder gold holds the same value as solid gold I once sold powder gold to a jewellers. The guy melted it in his workshop to make sure it was real

Probably iron.

You could do a stannous chloride test to ensure it's not precious metals

I might try that on them next 👍

For rocks, I'd probably crush them and use a gold pan to pan the gold out, alternatively try to leach the gold out with aqua regia and precipitate it with sodium metabisulfite. Thanks for watching

Put a clean copper bar in the solution. The silver ion will trade places with the copper ions.

Thank you. And thanks for watching

Hcl can be used. This is just an alternative way of doing it with household chemicals

@@3-2preciousmetalrecycling yes salt and vinegar reaction produces hcl, even in the food when combined

Thank you for watching. And thanks for sharing your memories of when you were young. I do agree though, that any experiment that produces fumes should be done in a well ventilated area. Preferably outside

Thanks for watching, and thanks for your positive feed back. It's really appreciated 👍

The process is refining the silver to make it 99.999 fine. The process removes all the impurities so that you are left with just pure silver. Precious metal refiners do make a living doing this they either charge a fee for the process or take a percentage of the metal depending on the arrangement with their customer.

For instance, jewelers have their scrap metals, off cuts, and mistake pieces refined. They need to know what karat their metals are to ensure purity when they sell their piece. Too much solder, for instance, can lower the purity and make the metal softer so they can't just melt all their scrap together and roll out a new sheet. Refining takes out all the solder, copper, and other impurities so that the fine metal can be mixed again to get the desired karat

@@3-2preciousmetalrecycling now i understand this better, it’s very interesting love you’r content 👍🏽 thank you .

Thanks for watching

Silver nitrate crystals for me cost about as much as buying silver and nitric acid and dissolving the silver. But my country doesn't allow me to purchase nitric acid, so it's invaluable if I want to make silver crystals. I would otherwise first have to spend a couple of hours making the acid then a couple of hours dissolving silver, in-between allowing the electrolyte to cool down I would lose a whole day just making electrolyte.

I also recover the silver from the electrolyte once it becomes over contaminated with copper

It wasn't a measured amount it was just a teaspoon. Thanks for watching

Thanks for watching

Thank you for watching. I enjoy gold recovery as a hobby. And I get my e waste for free. It helps pass the time away when I'm not at work though. 👍

@@3-2preciousmetalrecycling those materials needed to this job is not easily available to every places. I have lots of assembled PCB from old gadgets such as mobile phone, emergency lighting, radio calculate but I don't know where I get all those ingredients. I have used all those ingredients in laboratory whil studying but I don't know from where I get those chemicals

Thanks for watching

Slowly building them up. Thanks for watching

@@3-2preciousmetalrecycling youre welcome

The hcl and pottassium nitrate I used at the end of the video makes the aqua regia that I precipitated the 0.3 grams of 24 k. Thanks for watching

YOU DIDN'T LISTEN PWOPELY 😂

Vinyl will probably break down after a couple of uses. P.T.F.E tubing would be the best tubing to use. Thank you for watching

Thank you for watching 👍

I used just enough potassium nitrate to not need to de nox. De noxing is done to remove excess nitric. If you use enough to get the job done you will never need to de nox. Thanks for watching

@@goodmoodgoodday5385 if you add nitric acid very slowly, enough to dissolve all the other base metals, it's all reacted out by the time you're ready to add the SMB.

@@belvederebaileycambodia theoretically a good idea, indeed. But base metals should be already removed by treating with HCL and/or Nitric Acid before you work with AR. And most of my samples have a unknown quantity of precious metals (if even any) in it. So it seems a little tricky to me to estimate the amount of NA to add, to just get it right. Thats for I always boil out the NA, what on the other hand is time consuming.

@@goodmoodgoodday5385 you put just enough in to keep the reaction going.... until all metal is removed and the reaction stops itself. Denoxxing at the end is a pain in the ass and, I've found, leads to a less than optimal refining result.

Using more hydrogen peroxide will speed up the process. If you change out the solution every few hours it would be done quicker. For me I wanted to do it the cheapest way possible and I have time to wait. Thanks for watching

@@3-2preciousmetalrecycling Awesome channel sir!

HEAT speeds up any chemical reaction. Also, if you have a way of mechanically agitating the substrates in the solution (like a repurposed washing machine) that will speed it up as well.

Thank you folks, I have 1l 200 vol 50% hydrogen peroxide so I hope this will help to speed up

Thanks for watching

Thanks for watching I appreciate your feedback

Thanks for watching. You could use just the salt and vinegar to etch the copper from beneath the gold and bubble air through the solution . The hydrogen peroxide just speeds the process by oxidising the copper

The pharmacy down your street will absolutely have hydrogen peroxide I don’t think I’ve every been to a store that doesn’t

Amazon sells everything

@@codeyvaladez do you live in Cambodia ??

@@3-2preciousmetalrecycling they don't deliver everywhere on the planet.