Thanks for taking the time to show us. I think most people are missing the point. He answered a question in my mind which was "Can you make money off refining gold plated jewelry?" I googled it, ended up here and I got my answer. Thank you

I read all the comments to see what I could learn, I learned a lot of people are a bit thick, some are ignorant and some are very rude and some can't read. Sreetips you are a very patient man.

I think I have gold fever. I have no chemistry experience, no desire to learn for either money or pleasure --but I love watching you do this and keep hoping you get a huge gold haul! Thanks!

@sreetips

6 жыл бұрын

Excellent. You've given me a good idea for a new video. I'll bet that there are others who desire to see a big chunk of gold come from one of these videos.

It's better to see you yield .3 grams of pure gold than to see it go into a landfill. That's .3g of gold back in the world! Interesting process!! Have a GREAT Day!!!

Chemistry is fascinating. You make it look easy

I commend you for your patience !!! Great video, thank you

What a great video! Thanks! I've always wondered about this sort of thing. Fascinating!

I love the videos. I'm learning so much from them thank you, and keep up the good work

Congratulations on getting more than 89 K views on this video, alone! I read all 271 comments, so far, and am excited so many people with little technical background find it fascinating as well as those of us with a chemistry background. You have stimulated a lot of interest all around the world. Last week on the news (late January 2019) I heard a report that a group in China had developed a way to plate jewelry with a new process that contains no gold, yet looks rich like 24 K gold. Kinda makes the thought of recovering plated gold more financially pointless than it already is. Thanks for all the work you did to share this process.

@sreetips

5 жыл бұрын

I haven't seen this video in a couple of years. After reading your comment I went in and watched the entire part two to the end. It's still a very interesting video that I had forgotten about. I've got a ton more gold plated scrap and a larger glass container. I plan to make another video but this time let the gold powder settle completely in the electrolyte, then siphon the acid off the powder and refine it. This time I'll narrate and see if I can get a better yield.

Excellent and very educational video, very small return on over 2Kg of plate but you always deliver in your videos think we should call you the Mail Man lol. HOPE YOU KEEP UP THE GREAT WORK. I am in the UK and a big fan thanks for all your hard work.

this is a good video despite the low yield. people should know it works great also for gold filled and gold rolled items. this way it saves the more expensive nitric acid.

Thank you sir for your great videos. You are a good Teacher.

Thanks I was dubious on these but was thinking of trying a few small bars. I have now saved some money

Wonderfully made videos! Thanks-you!

After watching this video I am suddenly more grateful for even the 10K rings I pull up at the beach.

@bryangarrison9447

5 жыл бұрын

LOL

@klodiandemiri9117

3 жыл бұрын

You are right ;)

Awesome video!!I think its INCREDIBLY important to show the weights at the end. over 4 lbs of plated jewelry yielded only 0.3g of gold. So many people think they will get rich from recovering from a fist full of gold plated chains. Great video!!

@veraprokic4185

8 жыл бұрын

+Moose Scrapper the final yield depends on how thick the gold layer is on the plated jewelry..

@veraprokic4185

8 жыл бұрын

+vera prokić of course, you cant get rich with this method..

@SimmoneOrganWorks

8 жыл бұрын

+Moose Scrapper Will reverse electroplating be effective on all gold plated materials, regardless of base metal? p.s. love your videos btw!

@moosescrapper5928

8 жыл бұрын

+Zacoon I am not sure, Sreetips is a much better person to ask. I have not tried this process yet. Also, the goldrefining forum would be a great place to research the answer to that. BEst of luck to you!

@sreetips

8 жыл бұрын

+Zacoon Yes, the base metal matters not. You can even do the mil spec pins in the sulfuric acid stripping cell. Gold plated jewelry has about 5 microns of gold plating. Mil spec pins has anywhere from 40 to 70 microns of gold plating. This is what I've been told by more experienced refiners.

go ahead man ! i appreciated this video , big thankx from german

2.3 kg of gold fill jewelry, after all kind of work , took a few days to work. end up with 0.3 grams of pure gold. it didnt pay off the work. but , so nice to learn how it work. thank you very much sir.

@zenongarnek7020

6 жыл бұрын

This was not golf filled jewellery. This one was just gold plated so 0.3g, well, no surprise or maybe there was little loss. To prove it it would be necessary to find the surface area of the whole 2.3 kg and multiply it by say 2 microns (0.002mm) this will give the volume of gold used. 0.002mm is a standard thickness of gold electroplating and is truly thin - a hair is about 70 microns in diameter.

Very didactic ! Nice job. Thanks.

very informative video .and a good result .

thank you for your reply.

Nice beaker! That is a monster!

Great video. This looks like more of a hobby because you probably spent more than you earned in time and supplies.

@sreetips

7 жыл бұрын

Quite right. The yields are just too low. But it is a way to turn some junk into gold.

Good Info there. Nice one.

Awesome as always !!

Great tutorial my friend, was surprised to see that your sulfuric acid was so clear, I get mine from a Rona store and it's almost black, works though, and thanks for the great video.

@sreetips

8 жыл бұрын

That Rooto Drain Cleaner is really clear. I have a bottle of 98% Reagent grade sulfuric acid. I compared the drain cleaner to the reagent grade and the only difference was the drain cleaner had a very slight Amber tint. Thank you for posting your comment.

@AshrafAli-ry2sx

8 жыл бұрын

sreetips dear friend I need your help - I have multi layer plating hanging piece - it's coated by gold - nickel-copper , this coating repeated many times. So please advice how to recover gold from this items. Thanks

@sreetips

8 жыл бұрын

It should strip very nicely in the sulfuric acid stripping cell.

@AshrafAli-ry2sx

8 жыл бұрын

Thank for reply , I have around 3 tons content around 4.5 kg gold . It's difficult to to remove each layer sepertly work will not finish, so I hope to finish us right way to dissolve all layer in one process. Can I add hydrogen peroxide to sulphuric acid?

THink you went wrong somewhere on this one, I would expect a higher yield......However how you have progressed, watched one 2 days ago where you were bubblng SO2 from SMB into that pure, ultra clean gold solution from your HCl + H202, that was amazing, problem is, and I worked in research labs techniques take time and money to perfect.....Looking forward to the next video......Stay safe my friend.

@sreetips

2 жыл бұрын

Most of these videos are experiments. You’re watching me do this for the first time. I’m making it up as I go.

Can you reuse the HS2O4 after the gold is removed by filtration if the excess H2O is evaporated off? Many Thx!!

Alright! 54.4 grams of pure gold from 15 pounds of high grade plated scrap. Thanks for all the help as always.

@sreetips

4 жыл бұрын

Nice! congratulations Shane. That's a fantastic yield for a sulfuric acid stripping cell. Bravo Zulu!

@shaneroberts7676

4 жыл бұрын

Thank you sir. I'm super excited about it. Had $325 invested in scrap and acid. Scrap found on craigslist. $250 for 25lb of plated parts.

i got to hand it to you guy......... you make these great videos that teach so much!!!!!, made my heart sinks though... :( seems like salvaging gold plated things may not be very lucrative!!!...but i'll just keep scraping and saving up!. in the mean time i will try to learn more about the chemistry. didnt find the book you mentioned as yet but will do soon. i get confused about the properties of acid peroxide on gold, chloro auric acid which you just made, and aqua regia... when do you use which!?, so i'll keep reading!. i envy your lab ware...lol, i have never seen a 5L beaker before. you make me think of the breaking bad" show...lol.. ttyl!

Based on experience and seeing others vids on gold refining, either the jewelry is very loosely plated or your process is flawed.. I would have loved to see you use the aqua regia or muriatic acid processes as they are more common

@sreetips

7 жыл бұрын

I did not use aqua regia to demonstrate that it can be done without nitric acid because nitric acid is not widely available to most hobbyists. This video demonstrates that it is not necessary to have nitric acid to refine gold. To dissolve the gold I use hydrochloric acid and bleach instead of aqua regia.

Okay so I have my gold powder. Probably almost an ozt. It needs refined one more time but I'm out of nitric. Will bleach disolve that much gold powder?

I am interested. I watched both videos and what struck me as odd is that you just said you threw away the other jewellery. Have you checked if they were silver under the gold plate as with a lot of jewellery? I assume you did before you put it all together. What is the best way for Rolled gold? I can not find information on this. I have quite a bit of rolled gold. Thank you.

@sreetips

8 жыл бұрын

+jonrms I check each piece carefully. Any gold plated silver jewelry is set aside and used to inquart karat scrap when I do a batch of that. Rolled gold is the same as gold filled. A sheet of 14k gold is placed on top and bottom of a base metal and then it is heated and rolled to produce gold filled items. The two sheets of 14k are much thinner than the base metal. The rolled gold produces a thick coating of gold that protects the inner base metal layer, yet looks like 14k gold. Rolled gold items are roughly the same same value as silver, or a little more. Please see my video on how to process gold filled scrap. The SAME process can be used to process your rolled gold items.

Hello Mrs and Mr Sreetips 🌷🌷 I am so happy for both of you. Back then its seems to be much harder. God bless both of you🌷🌷

@sreetips

4 ай бұрын

It was. I was trying to find what works. Making it up as I go.

@arnedalbakk6315

4 ай бұрын

Back then sir you have about 95-96 k subscribers. So much hard work.. and finely the pays of. I know that your wife and you are so humble,and thats Jesus guide you every single day. Thats move my heart Sir❤️ Hard to find right words, but i know you understand me Sreetips. Have you thinking forward sir..Is your daughter..son interesting to continue to get involved in the future? But really..see what going on i the world right now😢 I feel sorry for people who not believe. Peter in the new testament say..thats this world will desepere..but my words will not go away. God love us so much,and deep in my hart i think the fire of the holy spirit will wake us up a last time. And sir..I think that will happen very fast before Christ Jesus take us home. In a dream i saw Jesus stand on a beach and my beloved mother stand on the other side. Jesus say to my mother....when you are ready i will welcome you in my Kingdom. Some days after she died. Before that happen i say that words to my mother...but still my friend..I miss my mother. God is so good to us. God bless you...your wife and children. I pray fore you "Mum" and "Daddy" if you allow me to say this once in this coment. This chanal is truly build by the inspirasjon of God. It is a light thats shine in the 2 coming of Jesus. Thank you both for all the clips'.. all love you share so nice Sir ⬆️✝️❤

@sreetips

4 ай бұрын

His blessing is on us. We are so grateful for what has been granted to us. Thanks Arne.

@arnedalbakk6315

4 ай бұрын

I know that Sir ✝️🌷🌷

awesome and very informative video, just a quick question if I was to start this as a hobby. what will I need to scrap to make 1 Oz bars

@sreetips

7 жыл бұрын

Karat scrap (old or broken karat gold jewelry) is the highest yielding. It's the only type I refine regularly. 50 grams of 14k karat scrap will yield roughly one troy ounce.

Thanks for the practical info. How do you siphon fluids so well? I've seen you do it in several videos but you don't show the whole siphon setup process.

@sreetips

7 жыл бұрын

I fill the siphon tube with water. Then I hold my thumb over one end of the tube. I put the other end of the tube in the liquid I want siphoned. Point the tube down and let my thumb off.

@livesonjura

7 жыл бұрын

I thought it must be something like that. I was also thinking that it would be tricky trying to insert the tube into the liquid without loosing some water and creating an air bubble but because the other end is closed with your thumb, the water in the tube wants to stay put . Thanks for the explanation. I'll use this method instead of decanting.

Will this same method upscalled a bit also work for gold plated telecom boards. And will the silver solder on such boards xontaminate anything.

@sreetips

4 жыл бұрын

The substrate must be metal for the stripping cell to work.

Hello At the end of the process and put on SMB solution but not deposited gold and the solution remained unchanged What do you recommend I do to be mined gold thank you very much

I have about 4lbs of Mltr RF connectors. Some have there is a small amount of solder brass and steel attatched to them. Will they mix with the gold deplating or cause problems in the refining process.

@sreetips

4 жыл бұрын

Brass and steel shouldn't cause problems. Brass is an alloy of about 85% copper and 15% zinc. Don't let water get in the electrolyte and dilute it or it will dissolve the copper and brass.

Is there a saturation point to qhere the acid simpky cant deplate the gold any more.

@sreetips

4 жыл бұрын

I don’t know, I’ve never reached that point. But as the metal builds up in the electrolyte the cell will begin to heat up quickly forcing a shut down and cooling off period before continuing.

Can the same kind of sulfuric acid used for reverse plating be used to precipitate lead?

@sreetips

4 жыл бұрын

Yes

Great video! At the end of the stripping process you mention two options. 1.) Add contents of cell to ice water. 2.)Two was not explained. Do you have a video showing option two?

@sreetips

7 жыл бұрын

Option two is actually the best, but it takes much longer - several days. In option two the cell is covered and left disturbed for up to 4 or 5 days. Because the concentrated sulfuric acid is kind of thick and viscous, this seems to be how long it takes for the fine black gold powder to completely settle to the bottom of the glass cell. Then, once completely settled, the clear sulfuric acid can be siphoned off leaving just a little of it behind mixed with the fine black powdered gold. The fine black can then be poured into a large volume of tap hot water and stirred. Once poured into the tap water, it shoukd settle quickly, usually overnight will do the trick. Then the very dilute sulfuric acid can be siphoned off and the relatively clean fine gold black powder recovered for refining, as seen in the video with hydrochloric acid and bleach.

@h-dblues4217

7 жыл бұрын

sreetips. -- Thanks for the info! I ran my first cell several days ago. Anxious to see the results. Great video btw!

Great video as allways.i have a question for you . i currently use the same vessel as in your video but was thinking i used a more shallow dish t o use less acid and. Ease the next step however with less acid. Lets say half the amount. .will it still effective for the same amount of deplateing

@sreetips

5 жыл бұрын

I have used a shallow dish. The deep dish worked better. Stayed cool longer. When it heats up it started acting weird, deplating erratically.

Awesome!

Would it make any better yield if the material was processed chemically?

Wow, I can't believe how low that yield was. That is on par with gold recovered from DIP ICs!

@sreetips

7 жыл бұрын

I did some of those once. I think I only got about 2 grams from a pound of ICs.

@successfulengineer

7 жыл бұрын

if you got 2g from 0.45kg of DIP ICs, then you were doing spectacularly well. Most high density flatpacks don't even give you that much. Maybe you meant 0.2g ? I processed some DIP logic chips recently and ended with around 0.1g per pound. Still surprised by how little gold you recovered from such a large quantity of plated items!

@sreetips

7 жыл бұрын

These were DLP chips. The kind with little clear windows that you could see into the chip. I only did two batches for a friend. It was four years ago so I may be off on what the actual yield was. I don't normally process this type of scrap because the yields are so low. My specialty is karat gold.

@successfulengineer

7 жыл бұрын

Yeah, that makes more sense. I'm usually pretty happy with 2g per kg, I have some machines that do a lot of the work for me, and the scrap is nearly free. Some of the chips I process can go to 6 to 10g per kg, but the majority hover in the 1g to 2g range. Appreciate your videos, keep up the good work !

what about gold plated bath and sink taps, gold plate over brass,would the brass affect the cell?

@sreetips

7 жыл бұрын

Not at all. Some of the jewelry I did was gold plated on brass. Brass is an alloy of copper and zinc.

Sreetips, truly amazing videos. Incredibly informative and well done. I have about 30 pounds of gold plated jewelry at the moment, and that just seems like too much work for a little gold, but it would be worth doing once just to say I did it lol. One question, can you do the same exact method with gold filled jewelry? That would make it more worth while wouldn't it? Thanks for the help. -Eric

@sreetips

8 жыл бұрын

I have never tried gold filled items in the sulfuric acid stripping cell. It would probably overheat the battery charger and the sulfuric acid in the stripping cell very quickly. I do know that 100 grams of 1/20 12k gold filled jewelry will yield about 2.5 grams of pure gold using the method that I use in my video entitled "gold refining gold filled scrap complete process". It would take about 40 or 50 pounds of gold plated items and many hours at the stripping cell to get that much gold from gold plated items. Gold plated jewelry has just nanometers of very thin gold plated onto base metals - it's almost zero. Thank you for your interest.

@MorningViewz

8 жыл бұрын

+sreetips oh I didn't finish browsing your vids yet to see your gold filled video. I was just curious because the stripping cell method seems to be much easier for someone with limited Chem experience than aqua regia, but I definitely need to do a lot more reading and learning before attempting anything. I'll be watching! Thanks

Okay. So I have reverse plated about 15lbs of high grade fiberoptic parts. Now I have my sludge. But I noticed that there is a heavier red/brown sludge the color of gold powder. Is that gold and black sludge plating base metals? Or is it two grades of gold? Should I rinse the black from the red and refine the red or just disolve it all in aqua? Thanks. You are always a huge help.

@sreetips

4 жыл бұрын

I don't know what the red sludge is. Copper compounds can be red. Don't worry about it because it will be removed later. In my video I was in a hurry to get a yield. Resist this urge to rush the process. The best way to proceed would be cover the cell and wait until all of the solids have settled completely. This could take several days. Gravity is your friend - GIYF. Once the solids have settled completely the sulfuric acid electrolyte will be relatively clear. Don't be deceived, it's looks like a lot of gold, but the amount will be small after refining. Carefully siphon off (or even better use a vacuum bottle with a glass tube) and remove the sulfuric acid from the settled solids being careful not to disturb the solids. Don't worry about getting all of it, just most of it off the black powdered gold. Once the sulfuric has been removed carefully use a rubber kitchen spatula to get the solids into a large 2-liter beaker with lots of tap water to dilute the remaining acid. Careful because a drop of water in the electrolyte could turn to steam very quickly and spatter hot sulfuric acid on you. Stir and let it settle again - overnight to make sure all the solids have settled - again, GIYF here. Once this has settled then you can siphon or draw off the now dilute sulfuric acid solution from the solids and add it to your waste treatment. Get the solids into a smaller 1 liter tall form beaker rinsing it out of the large beaker with minimal distilled water. Then cover with 200 to 300 milliliters of hydrochloric acid and boil in a covered beaker. Allow it to settle and cool, GIYF, then draw off the HCl. Test with stannous to make sure no gold has gone into solution. If some has gone into solution then add it to your stock pot. Then test some of the HCl by placing 5ml of it in a 250ml beaker with 100ml distilled water. Add a few drops of 10% ammonia from the grocery store. If copper is present then this solution will turn blue when the ammonia is added. Repeat the HCl boil until no more copper can be detected. Once all the copper is gone you can then dissolve the remaining black gold powder by adding HCl to the black solids. Cover and put on medium heat with a stir bar (if you don't have a stir bar then just put it on heat) Then add small doses of nitric (or 12% hydrogen peroxide from Sally's beauty supply if using a stir bar) until the solids go into solution. Test with stannous to verify gold on solution. Filter out the solids. Then drop the gold with SMB. Refine it again to get high purity gold. Your source material may give you a nice yield. It could be anywhere from 2 grams up to 10 grams of pure gold, depending on the skill and patience of the refiner - good luck!

i think when you use a map gas torch to melt that fine gold powder, you are blowing most of it away into the air, before it has a chance to congeal, resulting in a much lower yield. If I had the patience to attempt anything like this I would use an electric heat source to melt to prevent blowing hot gasses at a fine precipitate gold powder and potentially loose a lot of gold!

@sreetips

6 жыл бұрын

Good point, thank you.

Wow. This is what it looks like when you have a concept of how it works but not all of the knowledge. E for effort.

@sreetips

4 жыл бұрын

Yes, I'm not a trained scientist nor chemist. Just a hobbyist with a passion for refining precious metals.

Does it remove only gold?

Sir ,can I have your advice of any option by using Smb to precipitate,,? Coz in your video of AU fingers you are using vit. C.,,which of them is better? In other words,,if both of them is none ,is there anyone else that can be use by precipitating au at home,,,? Tnx again,,,

@sreetips

5 жыл бұрын

Yes, copperas - plant food - ferrous sulfate. Copperas can be used to precipitate gold. Vit C is not a good choice because it will precipitate other metals if present and contaminate the gold. SMB will bring down platinum group metals if present, especially if there is excess nitric present. Copperas will not. I use High Yield Copperas. It must be dissolved in hot tap water and filtered because it has tiny bits of iron. Also, if it turns the solution brown then a little HCl must be added to turn it green. I did a video, it's on my channel. Precipitating pure gold with plant food.

That was a whole lot lower of a yield than I expected. If my memory is correct that was a much lower yield than computer scrap. Interesting to watch!!! Do you think if you did the aqua regia method that you could've got a higher yield? The one thing I noticed was, before the drop the solution was pretty cloudy compared to your more recent videos. Loved it, as always!

@sreetips

5 жыл бұрын

I'd like to make another video of this using a larger volume container. The best way to do this is to let the black powder settle completely in the cell and then draw off the clear sulfuric acid then get the black powder and refine it. Settling takes days because the sulfuric acid is viscous.

concentrate sulphuric acid is use as an electrolytle. Can it be replaced with other ammonic chloride or sodium chloride for the electroylte ? From your experiment, when the plated gold is stripped, the meter drop from level 4 to level 1. I could not understand how this could happen as the based material are made up of steel, copper or brass material that do conduct electricity.

@sreetips

7 жыл бұрын

The only electrolyte that I have used is 98% concentrated sulfuric acid. I don't know of any substitutes. I dont fully understand it either. All I know is with the gold plated items in the copper basket, and the lead cathode both submerged in the electrolyte, when the gold plating is pushed off by the current flow, the amps decrease and that is how I can tell when the gold is deplated.

Can the sulphuric acid be replaced by other electroylte solution that can dissolved in the gold. Why is there a need to add HCL + Bleach to dissolve the gold. Can't we do a precipitation without going through the HCL + bleach process ?

@sreetips

7 жыл бұрын

Sulfuric acid is added to precipitate any lead that may be present. The lead sulfate can then be easily filtered out, effectively removing 100% of the lead from the dissolved gold. HCl and bleach dissolves all the metals. The gold is not pure. It has other metals alloyed in with the gold. After dissolving the gold, it can be selectively precipitated with sodium metabisulfite. All the other metals will stay in solution, only the gold will come down. This is called, refining.

Always add acid to water when diluting, especially with sulfuric acid!

Quick question could you of used Nitric acid instead of bleach to dissolve the black powder gold?

@sreetips

8 жыл бұрын

+Caleb Bennington Yes

I thank you for honor

Does the sulfuric dilute go into the stock pot as well or is it treated in a different way?

@sreetips

6 жыл бұрын

The sulfuric can be used several times. I did not add it to my stock pot. I diluted further then neutralized with sodium hydroxide for disposal.

does that even cover the cost of your chemicals? not to mention your time to.

Would you not be able to treat HCL + NaClO as a gold stripping agent? In theory (from watching many different methods) It appears that if you made the dissolving agent you could just dip gold plated items into it then go from there in precipitating the AU. If you do read this one I appreciate it, and was also wondering if you need to neutralize the (HCL + NaClO) solutions before attempting the SMB drop similar to what is needed in aqua Regia. (When solution is too acidic)

@sreetips

Жыл бұрын

I’ve never tried it.

Hey @sreetips, I was wondering if this process could be used to strip gold off of ram card fingers and cut up gold plated PCBs.

@sreetips

4 жыл бұрын

Only works when there’s a metal substrate to conduct the current flow. Fiber board is non conductive.

@justinbrunner620

4 жыл бұрын

@@sreetips Thank you for your response, I somewhat figured that was the case. I will stick to gold plated pins and other components for my cell.

Also where do you aquire the acid for this.

@sreetips

4 жыл бұрын

I bought Rooto Drain Cleaner at Ace Hardware. Then the recovered black gold powder can be dissolved with hydrochloric acid (Ace Hardware) and bleach.

For one thing water in other words H2O is neutral but tap water is always slightly acidic so you are not really neutralizing the acid but just diluting it slightly. You need a base solution to neutralize the acid before you throw away the scrap and even then you could still sell the scrap jewelry for scrap money.

@sreetips

8 жыл бұрын

The reason I added water to dilute the sulfuric acid was to thin it out so the black gold powder would settle quickly. Concentrated sulfuric acid is very viscous (thick) and it would take several days or even a week for the black gold powder to settle completely. Diluting the acid with tap water allowed me to settle the black gold powder overnight so I could continue the video and get it posted. The scrap jewelry has so little value that it seemed like a waste of time. It would have taken more in gas money to drive it in to the recycler than it was worth. Plus I don't use the stripping cell often enough. I only did this time to make the video to demonstrate how it is done. Thank you for your interest.

cant you just melt down the black gold form straight from the cell after its filtered out and dried?

@sreetips

7 жыл бұрын

Probably so, but it would be heavily contaminated with other metals if you skipped the refining process.

Is this the only way to do plated material or can you cupel it as the 1st step?

@sreetips

4 жыл бұрын

One viewer reported getting 54 grams of pure gold by reverse plating 15 pounds of gold plated connectors while using a sulfuric acid stripping cell.

Thank you sir for your great videos..I have one question please..how did you neutralize the remaining chlorine in the solution..I think bleach is a little bit tricky to neutralize and you can lose gold there...personally i think this is the reason to that low yield..

@sreetips

6 жыл бұрын

I can't remember neutralizing chlorine.

@sreetips

6 жыл бұрын

If I remember correctly, the chlorine wants to be a gas. The best way to rid the solution of chlorine is to boil it. The chlorine will be driven out of the solution by the heat.

@novagold1580

6 жыл бұрын

i agree with you its a gas and you can boile it or let it stay a couple of days...did you do that?

@sreetips

6 жыл бұрын

Yes, I put it on the heat when I dissolved the gold

Okay its been settling but still a decent amount of stuff floating. I cant knock it down. I tried swirling with glass rod, spraying with squirt bottle. Is it just junk and should skim off? or just syphon off liquid and let it go to bottom?

@sreetips

4 жыл бұрын

If allowed to sit long enough it will settle. Concentrated sulfuric acid is viscous.

Are those regular glass containers used for baking?

@sreetips

4 жыл бұрын

Yes, they are pyrex

if youbare using chemicals that requure a.fume hood along with the electrolyisis wouldnt an aqua regia solution be easier?

@sreetips

7 жыл бұрын

The reason I used bleach and hydrochloric acid was to demonstrate that you don't need aqua regia to dissolve gold. Many have a difficult time getting nitric acid. This video shows that it's not needed to dissolve gold, readily available hydrochloric acid and household bleach can be used instead.

@Donnaya137

5 жыл бұрын

Also- aqua regia is way more nasty to use, once the No2 starts coming off - as it does..

what is the percentage of sulfuric acid in the electrolyte? I have 98% sulfuric acid, do you recommend me to dissolve it with water or use 98% pure acid?

@sreetips

7 жыл бұрын

The acid must be 98%. Dilute acid won't work.

Great video i highly appreciate the work, have one question what is the average percentage of the extract gold from such plated substance? keep it up

@sreetips

8 жыл бұрын

+ramzan khan in this case it was 0.3g divided by 2130g = 0.00014 or .014 of 1 percent. It is very low. But it is a way to get gold if you have access to lots of gold plated scrap for next to nothing.

@MK-vw4bq

8 жыл бұрын

oh.. I just wana know what is the highest percentage you have yeild so far. I have around 10Kg of plated copper wire just want to know if this procedure will work for that type of scrap?

@sreetips

8 жыл бұрын

+ramzan khan - I've only done this 2 or 3 times and each time I only got a very small amount of gold. I don't know if this will work on copper.

does that even cover consumable materials?

@sreetips

8 жыл бұрын

+ramkitty 0.3g = about $10 so, no, the cost of all the equipment and materials is well over $10. But I'm not in it to make money. To me it was worth it to be able to make this video demonstrating how it is done. I hope you liked it.

hello it is me again I have another question What to do if I have make a mistake with the aqua regia and the SMB not reackt the aqua regia and I have test with the sanous clorid the cold is in te aqua regia what should I doo thank you :D

@sreetips

8 жыл бұрын

+Jakup Berisha - if the stannous test shows gold then try evaporating the solution to concentrate it. Once you have it reduced way down, say from 1 liter down to 200ml, then add some SMB and let it sit overnight.

I'd be interested in learning how to go the other direction and how to make a 14k or 18k gold electroplating solution saturated with 14 or 18 karat gold so I can re-plate some things that have worn badly with age.

@sreetips

Жыл бұрын

I think you can buy those solutions pre-made

how do you neutralise the sulfuric acid? can you mix it with other waste solutions?

@sreetips

2 жыл бұрын

Yes

can this process be used for computer finger rams instead of aqua regia method??

@sreetips

6 жыл бұрын

I don't think so, the fiber board will not conduct electricity. Only gold plated metals will work in the sulfuric acid stripping cell.

How much prep of items is needed? Do I have to cut off not plated parts?

@sreetips

2 жыл бұрын

I did

Great informational video. Glad that I don't feel too bad about throwing out the plated junk I get on occasion lol. Did you ever get a final yield from that big box of plated scrap you showed in the first video?

@sreetips

6 жыл бұрын

No, I took it in to the jewelry repair shop where I work. Every now and then some one will come in with a gold plated necklace or bracelet that needs a repair and we use that plated scrap for those repairs.

@dylandownright8844

6 жыл бұрын

sreetips I work in a jewelry store as well. Privately owned, we do a lot of repairs, been learning my trade there. I do my refining hobby on the side, but learning the repair side has definitely been a good education.

@sreetips

6 жыл бұрын

I have been doing the diamond setting for the master jeweler. He is teaching me the basics.

I am wondering if the gold pays for itself? Seems the chemicals ect take up most of the value. Did I miss something?

@sreetips

8 жыл бұрын

No, you did not miss anything. This type of scrap is very low yielding. You can't really make a profit unless you can get the scrap for free..

@austinwalden8295

8 жыл бұрын

+sreetips I recommend you visit a youtubers channel, named codys lab. his recent videos show a better means to this

@sreetips

8 жыл бұрын

I'll check it out, thanks for the reference.

@CoinSilver800

8 жыл бұрын

+Austin Walden his method is for gold filled this is gold plated they are two completely different items. gold filled means item was formed with the gold already bonded to the base metal. if the item was brand new and was stamped 1/20 10k GF it would be 5% by weight 10K gold. Gold plated means that the gold was attached to the metal electrically in a plating cell. Cody's method would not be the best choice for gold plated items, this method with the Sulfuric stripping cell is the best method. Also gold plating can be on top of any number of metals that would not work well in a nitric process like what Cody did, usually Gold filled is on a copper or brass type metal which easily is dealt with with a nitric processing. just found your channel Kadriver great to see all the processes talked about on the GRF being shown. from a fellow member of the GRF your doing some great stuff from what I've seen so far!

@sreetips

8 жыл бұрын

+CoinSilver800 Thank you, I enjoy showing folks what I know.

Can I add 45% Sulfuric acid????

@sreetips

6 жыл бұрын

Won't work. Dilute sulfuric acid will dissolve your copper basket most Ricky tick! It's got to be concentrated, 98% or more.

Will this work for any item with gold plating such as computer parts which I've started building as much as I can get since I want to build a business outta mostly this and scraping which I already do an love gold recovery is in my eyes so worth it since I can pick,it up for free all day even get paid to pick it up so I wanna start the recovery process. Would u say this is a good way for a beginner with about 50 pounds of computer gold plated scrap to begin

@sreetips

4 жыл бұрын

Andrew, I've never tried computer scrap in a sulfuric acid stripping cell. But my guess is; no. For the cell to reverse, de-plate, the gold, I'm thinking that the fiber board, being non-conductive, will impede current flow and cause it to not work. The gold plated material must have a metal substrate in order for the gold to be stripped off in the sulfuric acid stripping cell. If you've never recovered and refined gold from computer scrap before then I think that you will be surprised at how little gold there is to get from it when you do. The yields are very low and the amount of waste that must be treated is high. For these reasons I don't refine much computer scrap anymore. But one viewer has reported excellent results with gold plated connectors used in the electronics field. Not sure which ones though. He reported getting 54 grams of pure gold from 15 pounds of gold plated connectors using the sulfuric acid stripping cell. Made my mouth water!

Would this process work for gold filled scrap as well?

@sreetips

5 жыл бұрын

I've never tried it. But my guess is, since gold filled is a thousand times thicker than gold plated, the GF would have to stay in the electrolyte for so long that the cell would quickly overheat and lose efficiency. Plus, it would become saturated quickly, I think.

Love the info! Big fan of the "Retirement Stock Pot" I need a mentor like Harold. It seems impossible anymore to log in to the goldrecoveryforum. Did they close membership? Anyway, here is the real question: are you able to reuse the sulfuric acid if you don't dilute it? Maybe filter it off and decant it till next batch?

@sreetips

8 жыл бұрын

+Corey Duncan Absolutely. The best way to do this is to let the black powder settle until you can see through the acid. This takes about a week! Then siphon off the acid and save it for the next time you start up the cell. Filtering is not possible because the sulfuric acid destroys the filter paper. I quess you could use a glass filter, but it's better to just wait until it settles completely. The only reason I chose to dilute was to get a yield quickly so I could fininsh the video sooner.

@coreyduncanis

8 жыл бұрын

+sreetips Thank for the info. I heard you could filter with Rock Wool but never tried it. I did a batch close to what you show with one major exception in that I used a Stainless Steel anode. Everything looked great, I watched the plating disappear and black particles collect in the dish, then I processed it with Muriatic acid & Bleach, all the black vanished and turned to a beautiful yellow liquid but when I precipitated with SMB nothing dropped.... not sure what went wrong. I've had great success with AP style of recovery but this seems it might speed things up on large piles of plated materials. I processed about 6 lbs or 10k plated items so... something bad went wrong somewhere.

@sreetips

8 жыл бұрын

+Corey Duncan my batch did the same thing, I added SMB and got nothing. But the next day I came in and the gold had settled as a light dusting on the bottom of the beaker.

when you make up your Aqua regia you use hydrochloride acid 300ml is that right, please explain, ( I thought it should be Nitric acid)

@sreetips

8 жыл бұрын

+OnlyTomboller - Aqua Regia is a mixture of hydrochloric acid and nitric acid. There are different ratios, some say 3 to 1 while others say 4 to 1. I have learned that when dissolving gold you should NEVER pre mix the Aqua Regia before adding it to the gold that is to be dissolved. Instead, the gold should be covered with hydrochloric acid ONLY, then cover the beaker with a watch glass and place it on LOW heat. Then, you form the Aqua Regia inside the beaker by adding small doses of concentrated nitric acid, 1ml at a time. You keep adding 1ml doses until all the gold has dissolved being vey careful not to over-shoot with too much nitric acid. This will do two very important things; 1) it will conserve your expensive nitric acid, 2) it will COMPLETELY ELIMINATE the need to denoxx, or remove excess nitric acid, before you precipitate the gold. Excess nitric cause several problems during precipitation. If present, excess nitric acid will immediately redissolve the gold powder just as fast as it precipitates causing heat and brown fumes, plus it will tend to bring down other metals with the gold if they are present in your solution. Forming the Aqua Regia in the beaker as I have described above will allow you to carefully control the amount of nitric acid that goes into the reaction thus eliminating all these problems. Pre mixing the AR will GUARANTEE that you will have excess nitric acid to deal with. Also, You should NEVER boil Aqua Regia because if you do then you will lose some of you gold in the form of a mist or vapor that escapes out of the beaker as the solution boils. Always use low heat and keep the reaction going gently instead of vigorously. I hope this helps.

@sreetips

8 жыл бұрын

+OnlyTomboller - also, in this particular video I did NOT use Aqua Regia to dissolve the recovered gold mud. Instead I used hydrochloric acid and household BLEACH. When hydrochloric acid and bleach are combined deadly chlorine gas is formed. It is the chlorine gas that actually dissolves the gold. You can dissolve gold with HCl and bleach. You don't even need nitric acid!

@sreetips

8 жыл бұрын

+OnlyTomboller - I'm fairly certain that chlorine gas will dissolve just about any metal - even platinum.

Would this process work on gold filled items?

@sreetips

4 жыл бұрын

Maybe, but I've never tried gf scrap in this cell so I don't know for sure.

Wouldn't it be more efficient to add NaOH or soap to the rinse bath ? I know it's low value, but most of the deplated items should be copper. Wouldn't it be OK to recycle them ?

@sreetips

2 жыл бұрын

Possibly

can't help to think that you may have lost precious gold when siphon off the dilute sulfuric acid and also when getting ready to refine with bleach any take on that buddy?

@sreetips

7 жыл бұрын

Off camera, I let the siphoned off dilute sulfuric settle for several days before adding to waste treatment. Any black powder that settled out was added to my stock pot. After precipitate the gold that had been dissolved in bleach, I added the waste to my stock pot to remove any traces of gold still in solution.

@ewastesolutionssonny1889

7 жыл бұрын

already a month since I posted on this video thank you it's inspired me and I've learned a great deal in this process from using rooto to liquid fire the later is my preference from the anode basket I used a fabricated piece of pipe which works pretty well but heats up rather quickly I assume using while hot causes the cell to attack copper more as my rinse is with a green color this process is still my favorite do you agree the more dilute the acid the better it settles I'm currently deplating 9 pounds of heavy mill spec NASA tube furrels every 150 grams yields 1 gram gold thanks again ....

why not dissolve some baking soda on the rinse plate? A basic soution is more efficient to neutralyze acid than just tap water, right?

@sreetips

8 жыл бұрын

+Smoking Snake Yes, but I don't think baking soda has the punch to neutralize sulfuric acid.

@Donnaya137

5 жыл бұрын

@@sreetips and that would ruin the chances of saving the acid to use next time, -it is very expensive.

It’s mind boggling that they can plate that much jewelry with nothing

@sreetips

4 жыл бұрын

The plating on junk jewelry is microns thickness. Almost nothing.

I buy mixed jewelry jars from thrift stores to search for gold and silver... only a small percentage ends up being precious metal, so I probably have close to 50lbs of gold plated scrap sitting at my house right now... I had considered doing this, but that seems like an awful lot of work for only .3 grams of gold. Maybe I’ll just list it on eBay for scrap recovery... let me know if your interested...

@sreetips

5 жыл бұрын

You would do well to sell it. I rarely process gold plated stuff because the yields are so low.

@brianclark17

5 жыл бұрын

I do it as a hobby, not to get rich. I have glass shelves filled with Gold bars, Gold marbles and gold bb's. Its fun!

@brianclark17

5 жыл бұрын

@@sreetips I do it as a hobby, not to get rich. I have glass shelves filled with Gold bars, Gold marbles and gold bb's. Its fun and cool conversation pieces

I've watched this video yet... I've a question sir. Can we draw the following conclusion in terms of our knowledge that *Only sulfuric acid as concentrated dissolves the Gold.* Thanks.

@olawlor

2 жыл бұрын

In the plating cell, I believe sulfuric is helping to oxidize the base metals *under* the gold. The thin gold then floats away in the black powder, along with the base metal oxides. (Sulfuric acid alone does not dissolve gold.)

@128789842

2 жыл бұрын

@@olawlor Thanks a lot bro.

Do you can be used to nitric acid instead of bleach ?

@sreetips

7 жыл бұрын

Yes you can use nitric instead of bleach

$1000 later 0.3 grams priceless

@jwdewdney6757

4 жыл бұрын

yeah but the joke's on US - look how many views!

@moishanedelacruz6758

3 жыл бұрын

Ok

@TheTruthteller9147

3 жыл бұрын

lol....not to include the labor... great video sir but holy shit ill just buy some gold coins for jewelry making.

HELP! I made a cell. Was reverse plating some high grade fiberoptic parts that worked slow but okay. Then I dumped in some gold plated pins and there is no reaction only spark sound coming from copper mesh. But that seems to happen with any material I put In there after some plating is removed. I have to constantly move ths parts around in the mesh the keep them contracting each other to keep reation going. Why cant I just dunk it in and wait for it to take the plating off? Why do I have to move them around? Any ideas?

@sreetips

4 жыл бұрын

I experienced the same thing. I had to let the cell cool off and allow the black powder to settle over night. The next day it worked ok until the electrolyte heated up again and became saturated with black gold powder.

@shaneroberts7676

4 жыл бұрын

Okay. Thanks.

sulfuric acid gas can be explosive with only a spark to ignite. I would definitely unplug the battery charger rather than removing the clip. also should be done in a well ventilated room. I experienced explosion of a car battery first hand. Chemistry is fun but be safe.

@sreetips

7 жыл бұрын

Bruce, a car battery produces hydrogen gas as a by product of the charging process. Hydrogen gas, by itself, is not even flammable. But when it's mixed with oxygen is becomes highly explosive. It is the hydrogen gas, if allowed to accumulate, that is explosive.

A lot of work for a little gold, here in Alaska I can pan more gold in lass time in any creek up here,but good to no how to do it ,thanks

@sreetips

8 жыл бұрын

+Dana Ostler Hello, I'd like to try it. You can show me how to pan and I can show you how to get your panned gold very pure. It probably has silver and platinum group metals in it and I'll bet they don't give credit for that when you sell your panned gold. If you refine it yourself then you can keep all the precious metal. What percent purity is your panned gold?

@danajoe1

8 жыл бұрын

that's sounds good to me ,if you like go to facebook look up dan ostler and my pic's of good mining up here, thanks dan

@sreetips

8 жыл бұрын

+Dana Ostler I'll check it out Dan, thank you.

Can 14k jewelry be extracted the same way

@sreetips

4 жыл бұрын

No, the process for karat gold is inquartation. Sulfuric stripping cell is for gold plated junk jewelry.

Can you use this cell to strip computerscrap fingers from gold?

@sreetips

4 жыл бұрын

I don't think so. The substrate must be metal for reverse plating to work.

@MrLonelyFox

4 жыл бұрын

@@sreetips Thank you now i dont need to wounder about that. I really likes your videos. Want to test som gold refining but can only get ahold of 5% nitric acid (swedish law that you need permit to get stronger)