Gold Refining Gold Filled Scrap Complete Process

[@victormkhaliphi2778]

I have watched numerous videos of this kind. And this is the best by far. It's apparent that you know what you are doing looking at how organised your tools are. Great work!

[@archeonist]

One of the best goldrefining video's I ever saw!

[@steven2212]

You must have been a professor...very professional, measured and impressive presentation. I learn a ton. Thanks.

[@rlwill5813]

I have viewed many videos on how to refine gold. I must say there are many informative videos on the subject, but I must confess, your video is the most informative video I have viewed on the gold refining process. Keep up the good work! 👍

[@sreetips]

+Reggie Williams Thanks Reggie, it's good to know that some of my work is appreciated!

[@johnh1293]

I have the same opinion. I have seen hundreds of videos and their pedagogical work is just perfect. Thank you very much and that you have the most deserved success. Juan

[@shaneyork300]

I haven't watched hundreds, maybe a couple of dozen! And I'm sorry to say if You other KZbinrs that do gold refining videos are reading this, as I have commented on all videos I have ever watched! But SREETIPS just showed you how it's supposed to be done!!! That was very professional!!! He's the one everyone SHOULD BE WATCHING!!!!!

[@shaneyork300]

Wow, SREETIPS!!! You are AWESOME!!!! That was hands down the most informative video I have EVER SEEN ON REFINING!!!!! This being said with only watching a little less than half of your videos. You might out do yourself, again! The description of each step in such detail was very educational!! It took me a minute just to kind catch my breath/thought before typing a response to one of the first comments I read! Then I wanted to type my own. Because you had to read (the video) to learn it was even more educational than the more recent vids where you are telling us step by step, (DON'T SWITCH BACK, I LOVE THE TALKING AND SEEING WHO'S TALKING VIDS, haha)! This is one that will be watched many times to retain everything!! ( I wish I had a photographic memory ) THANK YOU BEYOND WORDS SREETIPS!!!!!!

[@mikewhitfield8425]

I love all of your videos! THANK YOU for helping me to understand all of the complications and risks associated with recovery.

[@jarridgraham]

Great Video! I am impressed on how well going from the last filter to melting looked so good, I was at first surprised that you did not do all the normal rinses that have been suggested, but in the end it says a lot to your process that you have developed.

[@SomervilleBob]

Nice video. 420 grams of gold-filled scrap to 16 grams of pure gold. Thanks, this video answered a lot of questions I had concerning scrap. I usually include small amounts of gold-filled with my karat gold when I send my metal off to the refiner. I would never do refining at my house on my own.

[@TungstenCarbideTempe]

I apologize for a late pos, but I wanted to thank you for detailed, non-bs- bluh-bluh-ing tutorial. I followed your steps, messed up a bit with nitric acid acidity( had to research urea after), but at the end it worked out. Thank you much.

[@royalgold4477]

nice!!i have been refining goldfilled for awhile. You showed me some new parts to the process!! thanks

[@michaelmelton8165]

This is the first post I have ever taken the time to leave for ANYONE. Your performance and SKILL is superb. The level of excellence you display, and SHARE must be commended. With this and a very comprehensive/FOCUSED study of your technique, I am more than confident in my ability to replicate your results. If it was to pass the knowledge in its ENTIRETY that you sought, you have done so.... Thank you Sir...

[@sreetips]

Michael Melton that is a very kind response, and that was my intent. I put myself in the place of the person who is new to refining. I only wish that these videos would have been available when I first started. Thank you.

[@all_about-You]

you must of learned this all from the forum, refiners helping refiners. great job. I used to do this as well. but with the gold prices down so low, I stoped for awhile. nice bar there. lazor steve would be proud. thanks for the video.

[@sreetips]

shinedown389 that is correct. With their help and guidance, and some trial and error, that is exactly where I learned refining. My user name on the goldrefiningforum dot com is "kadriver". Just about everything I know I owe to the GRF. Lazersteve was very encouraging and helpful. I owe much to him for the knowledge he passed on to me.

[@sreetips]

shinedown389 Also, Harold and Butcher were very helpful. Along with Oz and gold silver pro. They all were very helpful and kind enough to share their experience with me through the forum. I am sharing what I know here on KZbin as a tribute to those who took the time to help me.

[@all_about-You]

oh yea I remember you, about the same time I was a newbe there as well. I went there the other day, man there's a lot of people going thru there. I made a lot of buttons and a few bars back a couple years ago. still doing alittle but no material. heading for some prospecting when I can. you ever do any platinum, I have a pound or so from my catylic in a bag. I never mess with it. well thanks for the comment back, andkeep chasing that shinny. and good luck. Danny

[@sreetips]

shinedown389 I did some palladium a while back. I got about 4.5 grams from some cats. Platinum group metals are very difficult to refine. I have not put much time in on them. We used to find lots of karat scrap. We would buy $1000 worth of it for around $200 all day long. Then everybody got caught up and we had to start paying $800 to $900 for the same amount.

[@Luvmygoats]

I was curious as to how this was done. Such a long process. I commend u for having the patience to do this. Your little nugget in the end is beautiful.

[@shaneyork300]

Another GREAT memory of your greatest hits vids!! Have a GREAT Day!!!

[@beakerscience]

Once again, you out do yourself, and everyone else! Kudos, thank you for your contributions!

[@sreetips]

Beaker Science thanks for the comments.

[@hitower1977]

Fantastic Video, Thanks! So many more helpful hints and refinig techniques, as well as the use of particular equipment pieces that optimize the process and refined quality.

[@aloysalropse7602]

....MABUHAY !! ...thanks for another informative videos, staysafe and more power.

[@24kGoldenRocket]

Finally...There is a how to do it video on GF. Thank you very much.

[@SilverMoney999]

Excellent video. I especially appreciated all of the details you provided. Those little things are important and are seldom given in others' videos. Thanks and God Bless.

[@sreetips]

Silver Money .999 I wish that there were videos like this when I first started about 5 years ago. I hope these videos can be helpful.

[@SilverMoney999]

sreetips Did you have a strong background in chemistry before hand, or did you pick it all up in those 5 years?

[@sreetips]

Silver Money .999 Actually I knew nothing about chemistry before starting this. I have started studying at Khan Academy and learned much.

[@SilverMoney999]

sreetips That's great. So there just might be some hope for me to learn this stuff .lol

[@sideordere]

you demonstrate great skill and a lot of patience -Thank you for sharing your knowledge!

[@goldsilverjunkie]

Ah yes a vintage SREETIPS video how awesome 😊

[@zobaerprodhan9655]

outstanding! the final gold looks so beautiful

[@412natureboy]

That is a great video. I would never try to do it but definitely a bonus to see that shiny gold at the end!

[@daz41262010]

this is an awesome video :) I love how the chemicals change colour of the liquid at different stages :) so cool :)

[@dc8man2]

Thank you so much for taking the time to make this video. It has answered so many questions for me. Best wishes. :0)

[@sreetips]

+dc8man2 - glad you found the info useful.

[@danielyoung8527]

Awesome job, People! Beautiful and informative! Got me watching!

[@chun4life500]

Man you're wonderful..I have some kind gold dust or gold sand, i don't know how to name it. And i have a lot of it in my house. But i don't know how to process it. I live in indonesia by the way. Now i think i'll try your metode to process it. Thank you so much!

[@sreetips]

Chandra Permana take a small sample, say 100ml of the material, and put it in a 600ml beaker. Cover with hydrochloride acid, then add a few ml of nitric acid. Cover the beaker and add some heat for a while - about an hour. Then do a stannous chloride test to see if there is enough gold to mess with. Good luck!

[@tonywalton2333]

Brilliant Video's.. so thorough & easily understood.!

[@sreetips]

Tony Walton thank you for your comment!

[@themyceliumnetwork]

Beautiful Job !!! and the crowd goes wild ;)

[@jshah1961]

Beautiful color thank you very much for showing the whole process.

[@RayRusawcocktailminer]

Hi !! Well its me again LOL so this is the vid that I used as a reference to melt this last batch down , I just posted my vid on my channel yes I know there is a few things in it like not having gloves and yes I am paying for it by having stained fingers Opps but this is a very well ventilated outside shed, if you don't mind please watch it and tell me a few hints , thanks again for your vids very informative and someday I might get this figured out and do it right

[@sreetips]

Ray Rusaw Ray, it looks like you used the video entitled, "Gold Refining Gold Filled Scrap Complete Process". Your placer gold should have a much higher gold content then gold filled does. Therefore you should use the video entitled, "Gold Refining Karat Gold Complete Process". Placer gold is much closer to the material in this video and you should use the karat gold process rather than the gold filled process. Yes, I will visit you channel and view your video.

[@jakupberisha54]

this video is great nice job. but I have a question about the sodium metabisulfite how much I need too put on for to react the sodium thanks for the answer

[@sreetips]

There is a way to calculate the exact amount of SMB needed, but I have never done that. I just add small amounts of SMB until all the gold has dropped. After precipitating the gold powder a stannous chloride test confirms that all the gold has come down. If the stannous chloride test is positive and I still have gold in solution then I just add a little more SMB until it all drops. Plus the amount of SMB needed will be different, for the same batch, depending on the process you use to dissolve the gold. For example, if you make the mistake of pre mixing your Aqua Regia (either 1 to 4, or 1 to 3) then there will be a great deal of excess nitric acid in with your dissolved gold. When you go to precipitate the gold, the excess nitric acid can still dissolve gold and it will redissolve the gold powder just as fast as it precipitates accompanied by much heat and brown fumes. Since the gold is going back into solution you will need to add a great deal more SMB to get it to stay precipitated. But, instead of pre mixing your Aqua Regia you do it like this; add hydrochloric acid ONLY to the gold you want to dissolve, then add small doses of nitric acid with a pipette until all the gold has dissolved. This will completely eliminate having excess nitric acid to deal with after the reaction is done. If you dissolve your gold in this manner, then the amount of SMB will be much less.

[@toddybono2247]

Most imformative!!!! Great!! Quick question: I followed you details and I cant seem to drop gold completely. I had a few foils left after first AR treatment so I thought I had nitric depleted yet my SMB fizzed a lot when I added, some gold dropped but liquid tested positive for gold after setting all night and wasn't clear. I added a pretty good amount of SMB. Any advice? Thanks much.

[@sreetips]

Hello. Foils left is a fairly accurate way to determine if all the nitric has been used up. But it is not a fail safe. If you had other metals other than gold left in the batch after your dilute nitric treatments (especially any pieces of iron) then your nitric will tend to dissolve the non-gold metals first, leaving some gold foils get left undissolved, and giving you a false indication that all the nitric has been used, when it actually has not! After filtering the chloroauric acid solution and added SMB, if you got a lot of fuzzing, heat, and brown fumes then its a pretty good bet that you still had excess nitric acid. If I suspect excess nitric acid then I add sulfamic acid (sold in 1 pound containers at Home Depot for about $10 in the tile section - used to clean the haze off freshly installed bath tiles) to kill excess nitric acid. I've found that it works better than urea. I add it to the filtered gold solution before I add SMB. I make sure it's inside another dish before adding the sulfamic acid because just one spoon will cause a boil over if much nitric is present. I add the sulfamic a little at a time, stirring, until no more fizzing. Then I add the SMB to drop the gold. Adding about 4 ice cubes made from tap water will help with the heat also. BUT - if you dropped some of the gold, and you still have gold in solution, then you can just keep adding SMB until all the nitric gets used up. Then the gold will stay down. Hope this helps.

[@MADDLADO1]

Your uploads are really cool 😎

[@josmaraugustofonsecabarbos1713]

That's cool! I was looking for an example to use the BORAX.

[@vibhavjindal124]

Extremely informative stuff Sreetips. Just a query, chemically this method should also work with ewaste, pls advice. Your explanatory input would help a lot. Thanks again

[@sreetips]

+Vibhav Jindal It depends on the type of ewaste. Each has a different procedure. I don't have the experience of using this (gold-filled) process with any ewaste.

[@bradycaskey5627]

I was trying to watch your newest video about harvesting and refining silver but KZbin won't let me, great video by the way kept up the good work.

[@sreetips]

Brady Caskey Brady, that one is a "paid video" for $2 USD. You can watch it for 48 hours. I have to enable the video for the country that you live in.

[@bradycaskey5627]

Ok thank you

[@RobertWatsonWatsonSafety]

I was curious about wether or not you would share the process for recovering magnetic gold filled scrap or if you had a video on that as well.

[@sreetips]

+Robert Watson I've got some magnetic GF saved up and to be quite honest I'm a little unsure on how it should be done. Magnetic could mean iron, or it could mean nickel. They are both magnetic, iron a little more so than nickel. I think nickel can dissolve in dilute nitric. Iron will dissolve in nitric also, but not very well. The reason I haven't published a video on this yet is because this subject represents a grey area in my refining knowledge. I'm not a pro at this. But I'll get busy and do some experiments and see if I can get a video out on the subject. Thank you for your interest.

[@tonywalton2333]

Just a quick Question, pardon my ignorance, but what's the best way of removing the gold plating on Magnetic/Steel pins..? Just the normal way with HCL & H202?? Cheers...

[@sreetips]

Tony Walton use a sulfuric acid stripping cell to de-plate the gold. It comes off as a fine black powder that can be recovered and refined to pure gold. In my experience it takes about 10 pounds of gold plated items to yield a single gram of gold. Go to goldrecovery dot us - the website has a FREE video that shows how to construct and operate a sulfuric acid stripping cell.

[@davidhumphrey1558]

Any idea what percentage is in the movements of these watches. I have some Elgin movements, And some Bulova white gold or nickel movements. I saw these yield around 3% on another video you did, But I was asking before I start so I can get an idea on how much nitric acid I need. Thanks for sharing your experience!

[@sreetips]

David, I don’t think that watch movements have gold in them

[@anthonyrozier2567]

Great video! Do have a video on refining magnetic gold filled scrap process? Or can you tell me how to refine magnetic gold filled scrap. Thanks again!

[@sreetips]

Anthony Rozier hello, I have refined eyeglass frame springs (the curved part that goes around the ear). This material had spring steel and was treated with Hydrochloric acid to dissolve out the iron before the gold foils were dissolved with Aqua regia. I have not refined a batch of magnetic GF jewelry yet. I will try to make a video on all the magnetic GF jewelry that I have and post it. My problem is trying to find the time to make more videos. Thank you for your interest.

[@ducati27012]

I think your video is the best and most professional. Now my question is if you had gold bars would you melt them down first and then make gold nuggets to better get the impurities out of the gold. Thank you

[@sreetips]

ducati27012 hello, if you are referring to gold bars that are 999 fine gold then I would leave them alone. Melting gold bars to make gold nuggets will not remove any impurities, by any process that I am aware of. If the gold is impure then I would RECOVER the gold through inquartation (adding Sterling/925 silver to make a 6k alloy), dissolving out the silver and base metals with dilute nitric acid. Then I would REFINE the RECOVERED gold to a high level of purity using the wet processes shown in my videos. Thank you for your interest.

[@ducati27012]

Sorry I should have explained a little better. If you had scrap gold made from computer pins at about 23g each what would you do to recover the gold out of that? Thanks for your time

[@sreetips]

ducati27012 Got it. A friend of mine bought a "Gold bar" made from melted computer pins and I agreed to process it for him. He paid $7 for a 28 gram chunk off ebay. I used about 250ml of nitric acid and got zero gold from it. Computer scrap contains gold. But in my experience it takes about 10 pounds of gold plated material to yield a gram or so of pure gold. I did 450 grams of trimmed circuit card fingers once and got about a gram of pure gold. 143 grams of military grade gold plated pins yielded 0.2 grams of pure gold. To get the gold you must have a lot of material to get a decent amount of gold. To me it just is not worth the effort and I avoid escrap in favor of gold filled and karat scrap gold.

[@steyr2236]

Come on dude i haven't heard one word anout the goldrefiningform.com ...all your questions are already answered. Btw it (thats I T) pins( other than military or very high grad items) produce roughly 1/2 gram of gold even the big pencil size ones Hope this helps. Steyr223

[@steyr2236]

+steyr 223 Sorry that is 1/2 gram per pound of pins Btw excellent video

[@dumenkosinibalufu9157]

best video by far

[@diggindiggenit6540]

Your videos are so cool my favorites for sure

[@sreetips]

vic fisher thanks for the kind words

[@maxmuscato]

How long does the entire process usually take place for you? From start to finish? Pending if you added the right amounts of reactive agents for each step. How many hours did it take you for this video?

[@sreetips]

The longest part is the digestion of base metals with dilute nitric acid. Not counting the time to recover the silver or any platinum group metals, only the gold, and depending on the size of the lot, about two days, eight hours each. I did an 11 gram (gold yield) batch the other day starting with 370 grams of GF scrap and got it done the same day from about 8am to 11pm. That time includes wait times for filtering slow flowing liquids and reaction times. As a contrast, I did a batch about a year ago that contained almost four kilos of GF scrap. From the time I received the scrap until the time I did the final melt was about four days.

[@nikolajwinther5955]

in some of your videos you add some waste to a bucket with copper in them to cement out any metal from the liquid. what metals are these and what do you do once the bucket is full? You also save various used filters (and liquids?) for later refinement. when do you plan on doing that and what are your expectations therefrom? I.e. yield. And finally, what do you do with your refined metals? Do you sell them to a company (how does that work?) or do you use it yourself somehow? thanks for some great videos

[@sreetips]

The waste bucket (stock pot) is allowed to bubble with air until all the precious metals cement out. I just let the precious metals accumulate. After settling, I siphone off the liquid to my waste treatment bucket. The stock pot will have gold, platinum, palladium and maybe some silver. I've done a video on my silver refining filters and recovered some gold from them. I sell my silver on eBay under user bafelous. I sell my gold to Elemetal, used to be NTR Metals. They pay 98% of spot.

[@nikolajwinther5955]

Do you make your living by refining? I see you have a lot of pro equipment, that seems rather expensive for someone occationally refining gold/silver etc.. Also the materials, acids and chemicalt, electricity, various torches etc. - it must run up. Or is it just a sideshow, and your actual job is something that also involves all those kinds of equipment and chemicals, and you are simply killing two birds with one stone?

[@sreetips]

No, refining is just a hobby. I had a small lab set up in my basement as a youngster. This is just an extension of that.

[@sudeepshakya1219]

There is a simple way for refining First melt the gold with silver(quantity for gold=1gram silver =2 grams) And then put the solution to nitric acid for 1 hr.. Quantity of acid 100grams gold=750 ml of nitric acid..

[@sreetips]

Actually you want an alloy that is 1 part gold and 3 parts silver and base metals. This is called inquarting because you end up with one quarter gold and three quarters base metal and silver. Please see my video that uses inquartation only to refine karat gold to three nines fine.

[@karenschokking7925]

Could you please add the specific vessels used in each step specifically what is used to pore the gold in on the last step before the bar pour. It was a very informative video. Fingers crossed I can use it constructively. Thank Youiv

[@sreetips]

I use a fuse silica open-face melt dish to do the melt. I pour the molten gold into a pre-heated graphite mold. I used borax to do the melt. Once the gold was melted, I poured off the molten borax into a metal container of tap water. If left in with the gold then the borax will get poured along with the molten gold into the graphite mold. The borax will glue the gold into the mold and you'll have a hard time getting the gold out of the mold without damaging it (the graphite mold). If you are going to attemp this them I recommend doing a small batch, say 100 grams of gold filled scrap. The first time will be the hardest. Watch the scrap carefully during the incineration. Anything that melts and stay molten from just the heat of the melt dish is probably lead or tin or both (soft solder). Remove any of this material before committing to the acid. Tin is especially troubling. In nitric acid it forms metastannic acid or tin paste. It will plug your filters just like elmers glue making filtering impossible.

[@scottadams3586]

A complicated peice of work, But a very good amount of gold.

[@jdeluisa]

Excellent video!

[@wcook101]

Is your hood something you bought or something you made? Also, if you answer that you made it, is it filtered or just blowing the fumes out of a pipe through the roof?

[@sreetips]

+William Cook hello, this is a Labconco Proctector 28044 fume hood I bought from eBay. It was $260plus $230 to ship it and worth every penny. It features an all fiberglass interior with the fan built into the fiberglass housing. I had to cut a hole in my garage ceiling and in my roof and ran a ten foot piece of eight inch PVC piping out through the roof. Here is a pictorial of the installation on the goldrefiningforum dot com; goldrefiningforum.com/phpBB3/viewtopic.php?f=56&t=15831&hilit=Fume+hood+kadriver It is rarely ever turned off. It is the most valuable piece of equipment that I own. Without the fume hood I would be out on my back deck doing reactions and trying to duct away from the fumes.

[@MrTbowow]

awesome video...all those ugly steps and what a beautiful ending

[@sreetips]

+Timothy B thanks Tim, glad you liked it.

[@garudaobgyn4760]

hi sreetips, nice video.. but can u show me how to recovery n refining gold from e waste like cellphones..ive heard it has gold in there too..thank u. i preciated for ure answer

[@sreetips]

garuda obgyn hello and thank you for your interest. Unfortunately I do not have any experience with e-scrap. The jeweler's keep me busy with sweeps and waste such that I don't have time to work with e-scrap. I started one time but soon realized that it took so much scrap to get just a tiny amount of gold that I abandoned it in favor of material that produced higher yields.

[@garudaobgyn4760]

sreetips i see..Can you mention any jewelry that can be used to obtain pure gold? thanks b4

[@sreetips]

garuda obgyn Yes, karat gold scrap jewelry. 100 grams of 14k will yield about 58 grams of pure gold after processing. Gold filled jewelry also. 100 grams of gold filled 1/20th 12k jewelry will yield about 2.5 grams of pure gold. Gold plated jewelry. But it will take about 10lbs of gold plated scrap and it will yield about 1.5 to 2 grams of pure gold.

[@RayRusawcocktailminer]

Great vid :) I have melted my gold that I'm getting out of my sluice box and it sure as heck aint that pure but with all that acid and mutable steps I guess I'm going to have to deal with impure gold . one of my biggest problems is degraded lead there is so much of it where I prospect

[@sreetips]

Ray Rusaw Hello, lead makes the gold brittle and causes it to crumble instead of bend. Small amounts of lead are easy to get out, but the gold must be put in solution to do so.

[@RayRusawcocktailminer]

So is I can find some sulfuric acid and heat it up it should dissolve the lead ?

[@sreetips]

Ray Rusaw after dissolving the gold with Aqua regia, and before filtering the solution, I add some sulfuric acid to the dissolved gold solution. If there was any lead present then it too will be in solution with the dissolved gold. By adding a small amount of sulfuric acid to the solution, any lead present in solution with the gold will precipitate out. It can then be easily filtered out. Sulfuric acid will not harm the gold. I add sulfuric acid every time just in case some lead got in with the metal somehow. Sulfuric acid will also dissolve tin paste, but it takes some time.

[@hecklarandkoch]

Stupid question, I have a few small pieces of gold, different karat weights. Can they be refined with gold plated ewaste?

[@sreetips]

Recovery and Refining are two totally different processes. The recovery process for karat scrap and the recovery process for gold plated ewaste are two totally different processes. To recover the gold from karat scrap for refining requires inquarting the karat gold with silver, then digesting in dilute nitric acid. To recover gold foils from gold plated ewaste for refining requires lifting the gold foils in a bath of hydrochloric acid and hydrogen peroxide while bubbling air with an aquarium bubbler. Once the inquarted karat scrap has been RECOVERED by dilute nitric digestion, and once the gold foils have been RECOVERED by HCl, H2O2 and air, the they both can be REFINED together by dissolving the RECOVERED gold in Aqua Regia. Recovery and Refining are two totally different processes. Not a stupid question by the way.

[@uspockdad6429]

That was an excellent question, and an excellent answer. I am in the same boat as the original person who commented. I have a bunch of scrap Karat jewelry, then scap gold filled watch cases, then a bunch of gold plated ewaste. I have subscribed to your channel, because I hope to recover, and refine all of it within the next few months. And i have been watching tutorials as much as I can. Yours seem to be the easiest to follow, with the best yeilds. So I hope when I try, i get similar results.

[@toddy1384]

Quick question can I just melt the foils after the first step of disco inferno the base metals

[@sreetips]

toddy1384 I'm not familiar with the term disco inferno so I would not be able to determine the point that you are referring to in the process. Melting the foils without dissolving in AR at any point would not be a good idea for these reasons: 1) your gold would be impure and probably not very eye appealing. 2) the gold foils, left unmelted, will dissolve much faster than a button of melted gold. I always try to get the gold as pure as I can, especially if it is for a paying customer. Turning out impure gold (less than three nines fine) should be "avoided like the plague" if you hope to gain ANY trust as a refiner, amateur or otherwise.

[@lazarus1warior]

in step when the first use smb, my solution doesnt get a dropp of cold, are they need more heating process for sore?, thanks

[@sreetips]

Your problem could be one of many. Here are a few; 1) your gold filled jewelry was really gold plated. 2) you used too small amount of gold filled material, you should wait until you have at least 100 grams of gold filled scrap. 3) you included magnetic gold filled scrap in your batch. Magnetic GF scrap contains iron. Iron will consume your acids and "cement" out your gold as fast as it dissolves. Make sure and save any solids you filtered out, they may contain a brown powder that is your gold. Put the whole filter back into a beaker and dissolve again. Check your GF items with a magnet - check the filtered solids with a magnet. If iron is present then that is a problem. 4) the amount of gold is so small that it take a long time to precipitate and settle. Let it settle over night. The next morning you will see a light dusting of gold on the bottom of the beaker. I Hope this helps.

[@lazarus1warior]

thanks, ishall tied it agan and make the solution free from iron n other metal material non gold

[@demnlordd666]

nice job. well done vid with lots of information, thanks for sharing

[@MrAbbyandlilly]

wow...can i be your friend...lol. but on a serious note, i just staRted to scrap circuit boards for gold, i am dealing with mostly gold plated pins, and other gold plated materials....some small threads i assume to be pure gold and then all the gold attached to plastic chips sets, in understand that some metal plated pins can be reverse plated, and others can be washed in Hcl and Nitric acid to release the gold....and those on plastics have to be washed in hcl and peroxide........ but i am not clear on these methods because i only see bits and pieces of it on you tube....can you do some videos detailing the various methods as you did with this.... can alll my plated gold be extracted by reverse electroplating and then refined in aqua regia and using the H2SO4 to remove any dissolved lead solder?... i know i am asking much..... BUT DUDE... YOU DID THIS VIDEO LIKE A MASTER TEACHER!.....I CANT THINK OF ANYONE BETTER TO ASK!

[@sreetips]

+abby karim Thank you for your kind words. I only refined karat scrap, gold filled scrap, and jeweler's polish sweeps and filings. I don't have any experience with electronic scrap. I did do some military grade, heavily gold plated pins on copper for a friend, 123 grams. I got 0.2 grams of pure gold. But most gold plated items have a very very thin coating of gold. In my experience it takes about 10 pounds of gold plated jewelry items (the kind of scrap most widely available) to yield just 2 or 3 grams of pure gold. I am working on a detailed video on how to construct, operate, and recover gold from gold plated items using a sulfuric acid stripping cell. It is pretty easy and most of the stuff can be purchased at the hardware store or Walmart. Look for it to be posted in the next week or so (I hope) as I get time to do it. Shoot me an email at [e-mail] if you want to ask more questions. Thank you!

[@MrAbbyandlilly]

+sreetips dude, you have to be the best person and most honest guy i have ever spoken to wrt this business. i ended up with some old hospital equipment and there were some good plated pins on the boards. i guess for hospital or military grade etc the platings are good...it mad my pc plated pins look like blah! does the solder on the pins affect its electrolysis?

[@sreetips]

+abby karim The pins I did hand no solder. But I did do some heavily plated gold over silver slip rings. There were some small tabs that had solder on them so I cut the tabs off before processing the batch. I think there were about 15 of those rings. I got 9 grams of pure gold and about 3.5 Troy ounces of silver. I still have the little tabs. I'll process those for the tiny amount of silver and gold separately. Lead is very bad for gold. Just a few grains can ruin the gold making it crumble. Fortunately it is easy to remove by adding H2SO4 to the dissolved gold to precipitate lead sulfate which filters out completely from the chlorauric acid solution.

[@MrAbbyandlilly]

+sreetips i cant than you enough for this precious insight and information!

[@sreetips]

+abby karim Hello, I just uploaded a new video that shows in great detail how to recover gold from circuit card fingers and then refine the gold foils to pure gold. I use household chemicals only available at the hardware store and drug store. No nitric acid was used in any of the processes.

[@dogburrito]

Interesting. Can you tell me how much on average, I can expect from 375 dwt of miscellaneous uncleaned gold filled scrap jewelery? It's a mix of 1/10 to 1/20 and 10-14Kt.

[@sreetips]

About 2.5g of pure gold per 100 grams of 1/20 12k gold filled. 1/20 of 100g = 5g. 12k is 50% pure gold. So 5g X 50% = 2.5g of pure gold out of 100g of 1/20 12k gold filled.

[@MorningViewz]

Hello again sreetips! I finished hoke's book, and have been studying your videos...I've watched each one multiple times lol. I have a few questions if you have time to help but absolutely no rush. I wrote a couple down while watching the vids but I actually answered half of them by watching them twice! Thanks for being so thorough. I've purchased about 80% of the supplies so far, but will eventually need sulphuric acid even though I will be starting with silver so I won't need it right away, but is it easier to obtain than nitric? I had some trouble finding nitric but eventually found a 2.5L of 67%....is there any major difference with the 67% and the 68-70% you recommend in the video? Second, I'm curious as to what you did from the 45 minute point to the 8 hour point? Do you just let the acid do its work on low or medium heat the whole time and there's nothing to worry about? You keep it covered at this point with a watch glass too? How often do you need to check on it? I plan on doing this outside eventually with an extension cord for the heat. And my last question, for now, is what are the chances pocket watch scrap have lead? Is it at all possible to skip the sulphuric acid part, or is that absolutely necessary? I also purchased a cooking burner, unlike yours and exactly what Hoke said not to use, but will that be sufficient enough for now to start the incineration process? Thanks a lot for your help. I truly, truly appreciate it. I'm sure I'll have a few questions on silver but I'm gonna study more. -Eric

[@sreetips]

+Eric Tipton Concentrated sulfuric acid is at Ace Hardware. It's called Rooto Drain Cleaner. 1 gallon for about $10. The 67% nitric is perfect, no difference it will work just fine. As for 45 man to 8 hours, yes, I just keep the heat going to it and let the hot acid digest all the base metals. I can tell that all the base metals are gone when I add fresh nitric acid and no fumes evolve. Keep your reaction vessel covered at all times. There is no reason to take the watch glass off. It will act as a reflux condenser and condense the brown fumes back into nitric acid. It will then drip back in and do more work greatly increasing the efficiency of the reaction. There may be some soft solder that contains lead. If you have larger pieces that are lead then they will be revealed when you incinerate. The lead will melt and stay melted just from the heat from the melt dish. If you find any then wait until it hardens and then remove it. I would highly recommend a little sulfuric acid, especially working with gold filled, a known carrier of soft solder and therefore some lead and tin.

[@sreetips]

+Eric Tipton I've read parts of Hoke, but I found it sort of a difficult read. It skips around a lot. I had been refining for almost a year before I finally downloaded the PDF. I got along just fine without it due to the coaching I received from Harold_V lazersteve, Oz and Lou on the GRF. Good luck with your refining experiments. Be safe and ask questions if you want. I don't mind sharing what I know.

[@MorningViewz]

+sreetips Thank you so much for the help, it means a lot. I thought about downloading lazersteve's videos off his website, I've been poking around on there for years and used to send my GF off to aquilla who seems to be a friend of yours! I'm sure watching everyone's videos will just help me learn so I actually know what's happening instead of being robotic with steps and not knowing what to do when I run into a problem. The answers you provided make me feel a lot better, and I didn't even know about the sulphuric at Ace, yay. I'll be asking more about the silver process soon! ty

[@josegodslave4314]

How much distilled water added to nitric acid for clearing base metals?

[@sreetips]

About 50/50

[@kingdrew9530]

do u have a step by step instructions guide for sale ? I want to get as this video is so much more than others !

[@sreetips]

No, I just do this in my spare time as a hobby.

[@joetow4817]

I like your work.

[@Thanhmy-zn9ku]

very beautiful Job

[@MrTigwelder1]

Hello to sreetips. I'm just learning what all the terminology means for the different types of gold. I think gold filled 1/20 10karat is 4% actual gold content. Is this right? In your video you had just under 4% pure gold yield which would be about a perfect recovery rate considering gold filled jewelry is just a heavy gold coating that wears down over time.

[@sreetips]

MrTigwelder1 here's the calculation: 10k gold is 10/24 = .417 So 10k gold is 41.7% pure gold. The rest (58.3%) is copper, zinc and silver. 1/20th = .05 or 5% So if I had 100 grams of 1/20th 10k gold filled then; 100g x .417 = 41.7g x .05 = 2.085g pure gold per 100 grams 1/20th 10k gold filled scrap, NOT. 4 grams as you stated above. Gold filled watch cases and older gold filled bangle bracelets yield the highest at around 4% (4 grams of pure gold per 100 grams).

[@sreetips]

MrTigwelder1 1/20th 14k is calculated like this; 14k = 14/24 = .583 or 58.3 grams of pure gold per 100 grams of 14k gold scrap. 1/20 = .05 or 5%. So, 100 grams of 1/20 14k gold filled scrap will yield this: 100g x .583 = 58.3 grams x .05 = 2.9g pure gold, per 100grams 1/20th 14k gold filled scrap.

[@mikerobinson4183]

What is the process for gold filled items that are magnetic?

[@noobscrapper3283]

Very cool, thanks for sharing!

[@faysalyatim5178]

Very nice video and very informative. Why you are stating that Gold plated is not to be treated with this method? and how you separate gold plated from gold filled when you have to similar gold pieces at hand?

[@sreetips]

Karat gold scrap - inquarted with silver, part with nitric acid to recover the gold then refine. Gold filled - dissolve base metals with dilute nitric acid to recover the gold foils and then refine. Gold plated material - deplate in a sulfuric acid stripping cell to recover the gold, then refine.

[@faysalyatim5178]

Clear. But, if I m unable to separate Gold Filled from Gold Plated, can I treat both with method of "dissolving base metals with dilute nitric acid to recover then refine"?? And, if the scrap is magnetic, what to do?

[@sreetips]

I see. As a amateur refiner, I've learned to carefully identify pieces of gold filled jewelry by the markings. It will be marked: 1/20 12k GF, or, GUARANTEED 25 years, or 10k RGP. Not all gold filled is marked, but most is. You can test by putting 10k test acid on a piece of unknown gold jewelry. If it's gold plated the acid will very quickly (within 20 seconds) penetrate the gold plating and begin attacking the base metals. Gold filled, on the other hand, will stand up to the acid because it is a much thicker coating of gold. In fact, gold filled pieces will test as karat gold on a touch stone with acid. Another way is to file off some metal on an unknown piece. Then put some 10k gold testing acid where filed. The acid will immediately begin to attack the base metal. After a few minutes, wipe off the acid and view it under magnification. If it's gold filled then you will be able to see the thick plating of gold over the base metal. If it's gold plated then there will be no thick plating of gold. If you put some gold plated material in with a batch of gold filled scrap then it could cause headaches later on in the process. You'll want to keep gold plated junk out of the gold filled batch at all costs. Magnetic GF usually contains iron. In most cases it's ok to add it to the batch if it's passed all the other tests. The problem with iron is that it won't dissolve very well with nitric acid. So, when all the base metals are dissolved with dilute nitric acid, then there will still be some iron left in with the gold foils. After incinerating, when acid is added to dissolve the gold foils, the iron will start "cementing" the gold out of solution just as fast as the acid can dissolve it. You must be familiar with the reactivity series of medals from the periodic table of elements. It is what causes the gold to cement out on the iron. Please do a search on the Internet to find out more.

[@faysalyatim5178]

I understand and thank you very much for this valuable summary. Regards

[@faysalyatim5178]

I m left with one needed explanation concerning your statement saying: " You'll want to keep gold plated junk out of the gold filled batch at all costs.". I couldn't manage to explain it. Can you help plz?

[@JustATroll420]

can you use 67% nitric acid and will it work just as good

[@sreetips]

Neo Bandit yes

[@ownerfrisbycon9707]

Can you list for us all the tools in one easy to view "shopping list" ? Everything from the casserole dishes to the torches to the glassware used to house your chemicals... Fume hood, etc.... Please?

[@sreetips]

If a picture is worth a thousand words then a video is worth a million. The list you seek is in the video. Watch it and write the list as you go.

[@richardrayner5952]

great video so nitric acid is the soloution to my problem just add it to the smealt bricks and colect the mud and mealt cool

[@dillonmundy3185]

also how do you get the borax out of the dish without accidentally pouring off the gold. I'm having a hard time understanding how to force the borax out

[@sreetips]

+dillon mundy Like any thing it takes practice. Remember I'm using an oxy-acetylene torch. It produces a fairly forceful flame. I used the force of the flame to nudge the molten borax around past the pool of molten gold and out of the dish. The gold stays in the dish, but just barely. It right on the verge of coming out of the dish with the borax. The molten gold is heavier then the molten borax. I can force the borax around the molten gold, kind of wedging the borax between the gold and the flame and pushing the borax out of the dish. To practice, use a small clean metal dish with clean tap water. If some of the molten gold accidentally pours out with the borax during the practice then it will be easy to recover by pouring off most of the water and then pouring the borax, gold and a little water into a COOL melt dish, then remelt and get the gold.

[@dillonmundy3185]

I totally missed you saying you were using an acetylene torch. that makes a lot more since you me now and thank you for the tip. I'm a beginner but doing fairly well so far.

[@dillonmundy3185]

+sreetips I can't seem to find your process for magnetic gold filled! please give me a link

[@sreetips]

I have yet to do the magnetic scrap. I've done gold filled eyeglass springs - the part of the frame that loops around the ear to hold the eyeglasses on your face - and they contain SPRING STEEL. They are magnetic. The first step in processing those is to FIRST dissolve the steel in hydrochloric acid with lots of heat. Next, once most of the spring steel is dissolved you filter the iron laden HCl to capture any pieces of gold foils - iron dissolved in HCl makes a very dirty solution and it does not filter very quickly. After filtering off the dirty iron laden HCl, I then add fresh HCl with more heat to dissolve even more of the spring steel. After 2 or three of these hot HCl boils and filterings, I add the filter with the solids back to the beaker, add fresh HCl to the gold foils, then add a small amount of nitric, only about 30ml for a kilo of gold filled spring steel pieces AND NO MORE. At first there is no reaction. Then out of no where, a vigorous reactions happens any where from 5 to 20 minutes later. If I get lure into adding more nitric before this vigorous reaction (which is easy to do if you have no experience) then there WILL be a boil over. Here is the tricky part - the Aqua Regia that is formed when I add the nitric to the gold foils and HCl will begin to dissolve the gold foils, BUT, the dissolved gold will cement out of solution onto the remaining steel pieces as a fine brown to black powder just as fast as it dissolves resulting in no gold gold into solution. This can be very baffling to someone new to refining (it was to me the first time I did it). As you can see, there is much more to the process of recovering and refining the gold when there is iron present. Nitric acid will dissolve iron, but it does not do it very well. Some time I will make a video showing how to do it. Thank you for your interest.

[@johnnyblueeyes8037]

How do you recover the gold from magnetic gold filled jewelry?

[@sreetips]

Johnny, it's the same as non-magnetic. Gold will cement out on iron, that's why I excluded it. Iron will dissolve in nitric but not very well. It could cause a beginner to lose valuable metal. Please see my latest gold filled video. I add magnetic scrap to the batch and refine it with the non-magnetic material.

[@arnoldkabayo4267]

sreetips Sir talking about Gold Filled Scrap, if you say 9k gold filled jewelry does it mean 9k gold is used for the jewelry then filled with a higher karat gold?

[@sreetips]

Arnold Kabayo Gold-filled, or gold overlay, is made by heat- and pressure-bonding a thin layer of karat gold to a brass (or other base metal) core. The "14/20" or "12/10" notation refers to the industry shorthand describing the resulting material. The first number is the karat purity of the gold used; the second number is the amount, by weight, of gold relative to the base metal material. For example, "14/20" or "1/20 14k" gold-filled material is made with 14-karat gold and the gold represents 1/20th (or 5%) of the total weight of the finished gold filled material. You may occasionally see other notations, too; each will inform you about the material's make-up. For example, "14/40" gold-filled is composed of 14-karat gold that represents 1/40th (or 2.5%) of the overall weight of the material. SO, if you had 100 grams of 1/20 14k gold filled material then you could calculate the amount (approximately) of pure gold yield with this formula; 100g X 14/24 X 1/20 = 100g X .583 X .05 = 2.915 grams of pure gold in 100 grams of 1/20 14k gold filled material. • Gold filled items have a thick layer of karat gold that covers the base metal surface, making it tarnish and wear-resistant. • The value of gold-filled is much greater than gold-plated because gold-filled has a thick layer of karat gold, whereas the gold plated is just a very thin microscopic film of gold. It takes about 10lbs of gold plated material to yield about a gram of pure gold.

[@arnoldkabayo4267]

sreetips thank you so much sir you really enlightened me about gold filled jewelry i almost bought a golf filled materials for refining that would cost me no profit at all. :)

[@stupidfunnyawesome3853]

How long was the whole process? Days< hours?

[@sreetips]

Stupid, Funny, Awesome it takes about two days from start to finish.

[@dillonmundy3185]

would it mess up this process if I had a few 14-18k solid pieces in the mix?

[@sreetips]

+dillon mundy Not at all. Nitric acid will not touch the karat pieces because nitric acid will not dissolve gold by itself. If they are small then they will probably dissolve along with the foils when you go to Aqua Regia. The only problem that could happen is passivation of large pieces of karat gold. Passivation happens when the silver content in the karat pieces reacts with the hydrochloric acid and a layer of silver chloride encases the karat gold preventing the Aqua Regia from dissolving the underlying gold. Passivation can be completely eliminated by inquarting the karat pieces with silver.

[@dillonmundy3185]

+sreetips haha just got done watching your karat process. man you are a boss and should write a book or something haha. I swear I've learned everything from your videos.

[@dillonmundy3185]

+sreetips one more question if you don't mind? is the process different for white or rose karat gold? should I deter from mixing them?

[@sreetips]

Glad to hear it, it's good to know the videos have helped. I wish videos like these would have been around when I was first starting back in 2010.

[@dillonmundy3185]

+sreetips well you've definitely come a long way. all the other vids I've watched are sloppy. you are so in depth and safe about it. I can appreciate that haha. thanks my man!

[@jangjoo110]

thank you very much for your teach

[@jacobdehovitz156]

Hello, chemist here. When you first added the HCl, why didn't you filter out the solution before adding the nitric acid. Wouldn't the solution contain non-gold metals and no gold, since HCl alone does not dissolve gold?

[@sreetips]

+Jacob DeHovitz Referring to the addition of HCl right after the incineration; yes, it may have removed some base metals, and no gold. And some refiners do an HCl rinse and filter at that point. But I go straight to AR with nitric additions, then do a selective precipitation with SMB, only the gold precipitates. The base metals stay in solution and can then be rinsed out with HCl, then DH2O, while the pure gold powder is in the filter. Since I usually always do a second refining, any traces get eliminated at that second refining.

[@sreetips]

+Jacob DeHovitz I have a question - Pt will not dissolve in nitric acid, hot or otherwise. However, if I have an alloy of 95% Ag and 5% Pt, both metals will go into solution totally. It's an enigma to me. Have you ever heard of this? Is there an explanation? Thank you! Kevin

[@rosariofares4669]

do you use urea before smb I dindnt see that part ???

[@sreetips]

No, I did not use any urea. In fact I no longer use urea in any of my gold refining processes. I do use sulfamic acid (available at Lowes or the hardware store) to kill excess nitric acid, if it is present. The best way to deal with excess nitric acid is to use just enough nitric acid to get the job done. I NEVER premix my Aqua Regia. Instead I add hydrochloric acid ONLY to the gold that I want to dissolve. Then I add small doses of nitric acid, 1 or 2 ml at a time until all the gold is completely dissolved. Towards the end when there are just a few pieces of gold left to dissolve I add just drops of nitric acid. By dissolving gold in this manner I can carefully control the amount of nitric acid going into the reaction. Then there will be NO EXCESS NITRIC TO DEAL WITH. Pre mixing the Aqua Regia is not recommended because it GUARANTEES that you will have excess nitric acid left over that must be delt with after all your gold has dissolved.

[@24KGarbage]

hey Streetips, any chance of you making a video on magnetic items?

[@sreetips]

Do you mean magnetic GF scrap? I've got a bag of it so I'll try to make a video on it.

[@24KGarbage]

sreetips yes sorry. Magnetic gold filled julery. I ask Just because you say that it's a different process.

[@sreetips]

I've done several different types. Eye glass springs that curl around the ear to hold the frames on the face. These have spring steel and require hydrochloric acid to dissolve the steel. They are a real pain. Then I have GF jewelry. Iron causes problems because it is more reactive than the gold. With iron present, the gold will cement out on to the iron just as fast as it dissolves. Consumes Lots of acid, can cause loss of gold if not complete.y familiar with the reactivity series of metals.

[@fifikakau]

Wow that look like it took u days tho, but I am also trying to make my own gold out of my gold filled pieces, and I would like to ask you where can I get the tool and the chemicals? I live in Europe, and here we dont have many american products lol. please help??! hehe

[@sreetips]

Fifi Kakau Hello, I wish I could help but I have no experience buying from companies in Europe. Take a look at ebay, you might find some items there.

[@tonywalton2333]

Thanking you kindly, will check out...

[@richpennn]

question, what is the borax do to the gold when u melt it?

[@sreetips]

The borax coats the inside of the dish and prevents the gold from sticking to it. It also makes the gold flow. I also use it to act as a sort of glue to hold the filter paper in the dish so it don't fly out when I'm melting the gold. I want all the filter paper to stay in the dish until it burns away completely because the filter paper has tiny amounts of gold powder clinging to it. If the paper flys out with gold powder sticking to it then that will cause loss of part of my gold.

[@richpennn]

ah, ok thanks ;)

[@goldbunny1973]

Very good video. Maybe use a 50% background for your captions though as theyre a bit hard to read against light backdrop? Goof job tho, thanks for posting and sharing knowledge : )

[@russellb2464]

Shut up

[@crackrokmccaib]

How do you do the magnetic items?

[@sreetips]

Magnetic will go just fine. The problem is spring steel. Causes problems.

[@crackrokmccaib]

@@sreetips Oh. Nice to know. I will be doing my first ever batch this weekend. I pulled out all the springs and steel backs, ect. I have 271g. 90 of which is magnetic. Maybe I'll do them separately and after the nitric and second incineration, I'll run a magnet through and pull out anything left over.

[@RayRusawcocktailminer]

Well I have now watched this video over 10 times and have started to ask around about tools beakers and acid Since I live in Southeast Alaska it can be VERY hard to get stuff shipped in , I contacted our local apothecary and here is what I was told ,, 1/2 Quart of Nitric acid cost 209.00 dollars 1/2 quart of Hydrochloric acid is 129.00 1 pound of Sodium meta bisulfate cost 60 dollars and I forgot to ask about the sulfuric acid , and so far I have not found any local business that would be able to sell me professional grade beakers funnels and filters , another question I would put out there is how much of theses solutions can be reused because at theses prices I wont be able to even consider doing this process

[@sreetips]

Ray Rusaw I remember buying my first liter of nitric acid from a web site called Art Chemicals. It cost me $100 USD. I was focused on learning the secrets of refining. I bought all my glass and supplies on eBay. But much of it was bought in grocery and hardware stores at first. PYREX measuring cups come in many sizes and work perfectly as beakers. Hydrochloric acid came be bought at the hardware store, it's called muriatic acid, used to clean concrete. Plastic funnels and several coffee filters are suitable for this hobby also. Rooto drain cleaner is 98% sulfuric acid. Your location in Alaska sounds like it may be a less than desirable location for doing refining as a hobby.

[@RayRusawcocktailminer]

sreetips Thank you for the reply , I am still going to get the stuff needed to refine gold since the area that I am getting placer gold is known to have silver lead and zinc all amalgamated together and when I fire the gold it is so contaminated that it is brittle and cannot be hammered for making rings and trinkets . right now I have enough pure acids to do a couple of batches, one more question once the sodium is added does that kill the solution and can no longer desolve any more gold

[@sreetips]

Ray Rusaw if there is excess nitric acid in with the dissolved gold, then any gold that precipitates after adding sodium metabisulfite will instantly redissolve causing the solution to heat up, and poisonous brown fumes will form. If you keep adding SMB, then eventually all the excess nitric acid will get consumed and the gold powder will stop dissolving. But this is wasteful. It is far better to do away with mixing the Aqua regia. Instead, I add just hydrochloric acid to the gold that I want to dissolve. Then I apply gentle heat and add small doses of nitric acid to form the AR. I add just enough nitric acid with a pipette to get the gold dissolved. When I'm done there is very little free nitric and I completely eliminate

[@sreetips]

sreetips the problem of heat and fumes. When I get done dissolving the gold, the solution will no longer dissolve gold because there is no free nitric acid in the solution.

[@RayRusawcocktailminer]

Is the Hydro chloric acid still active ?

[@stewartbolen7817]

I have a lot of magnetic G.F what is the process ?

[@sreetips]

Magnetic GF means iron or nickel as base metal. Nickel will dissolve in dilute nitric. Iron will too, but not very well. It's best to boil the magnetic stuff in hot hydrochloric acid to remove as much of the iron as possible. But it's a tricky process and many things can go wrong. Not for a beginner, but the only way to gain experience is to just do it.

[@stewartbolen7817]

Thank you

[@joelopezjl28]

Where does one get concentrated nitric acid?

[@sreetips]

I get mine from GFS Chemical but you need a business address for delivery, no residential deliveries. Last time I bought it was $157 PLUS delivery of about $50. I thought it was $157 including delivery, but that was a purchase they had on sale.

[@williamblakney3646]

Wow dude I want your lab!!

[@arnoldkabayo4267]

sir can you make a video for gold plated materials?

[@sreetips]

Arnold Kabayo I'll be making a video about gold plated material as soon as I get time. I plan to make a silver chloride conversion to metalic silver and a palladium, as well as the gold plated scrap video. Thank you for your interest.

[@arnoldkabayo4267]

sreetips thank you so much sir. I'll be waiting for those videos. i really like the chemistry that is involve is gold refining.

[@normlor8109]

I know nothing of this process but I always thought burning all these metals together would separate all those metals in one shot or dissolving every thing in strong acid and only pure gold is left

[@sreetips]

norm lor burning the metal removes grease and oils. Then the base metal (brass, copper, zinc, silver) are dissolved away with dilute nitric acid. The gold is left behind as hollow foils. Once the foils are recovered then the gold can be refined to a high level of purity.

[@um999out6]

awesome video, than you!!

[@stevewoods8116]

Awesome!!!

[@shaneroberts7676]

How many grams of material were in this batch?

[@sreetips]

I can't remember. Maybe around 500 grams or so.

[@sreetips]

At 2:50 it says that I had 420 grams of gold filled material.

[@sreetips]

One other point, add distilled water to the liquid to dilute it after the nitric boils. It will thicken up as it cools if you don't and cause filtering problems.

[@shaneroberts7676]

Still on it way from ebay.

[@shaneroberts7676]

Okay. I remember you saying it thickens up.

[@stephon77indtri]

how much did it sell for ?

[@sreetips]

Stephon Joel I sell my gold to NTR Metals, they pay 98% on the purity. So; .98 X .999 X spot gold = payout

[@karenschokking7925]

thank you for your reply.

[@tinamarie470]

That's amazing.

[@katharinedanielson7567]

Fascinating

[@KronicNitron]

No i need to buy this equipment for all my gold jewelry i have