It would be cool to see a video explaining the cost to profit ratio. Like how much you spend on chemicals, electricity, and metals compared to the value of the finished product.
I believe it is negative. The scrap metal cost is fixed at scrap value. The refining costs are expensive. If you add up the two costs it is a big loss. Also, a percentage of the scrap material is lost during refining. The gold value in dollars per weight is the same regardless of purity. I don't think the cost in dollars is his mission. The silver from karat scrap is very profitable IMHO. 👍 The costs of equipment repairs, replacements, and upgrades and now replacements again, has been significant.
49:17 "It's getting late. I'm tired. This is when mistakes happen." This quote should be noted as it is knownledge to live by. Not only pertaining to gold refining but just in general. Stay safe everyone!
-That white gold in your 14k portion is Rh plated. -You could use the Au electroplated material to inquart. The Au is plated on brass, which is Ni and then Au electroplated. Just assume that all the electroplated weight is 'inquart.' You'd be adding in the same Cu and Zn that's part of your Au filled material. -That junk metal is 'brass' or 'Zn diecast', that is zincate immersion (Na2ZnO3) coated, Cu flashed, Cu plated, Ni flashed, then Au flashed. Zn is just as useful to inquart as Cu or Ag. It all comes out when you do your HNO3 boils. -The material at the bottom of your melt dish is likely stainless steel. -I'm surprised at how little slag you have floating on top. That'd be your Zn or maybe Pb oxides. Looks like they might have been rinsed out into the drain when you spatter cast your melt into the cooling water tank. -The activity series isn't going to predict reactivity with acid. If anything, the reaction you got would be from the amount of Cu and Zn in the inquarted gold. Whatever Zn you add to your process will pas all the way through to your final Fe waste stream and be discharged in any liquid supernate. -Jeez. I didn't even consider Sn. -That white sediment on the bottom of the beaker, after the HCl boil, is your PbSO4. -Double, triple or even quadruple up on your filter paper for the Buchner funnel. In the old days, we'd use an asbestos fiber filter mat. I'd think you could use an activated carbon layer on top of the filter papers to help you get your clear solution. Of course, you'd need to add the carbon to your filter paper stash for later metal recovery. Yes, the filtration step will be slow, but less sensitive to high pressure vacuum. That IS nice Au! Long road to well done!
Mr. Foote. Thank you for the lesson of the day. You answered my ?’s and I’m sure some of SREETIPS’ as well. Keep posting here please. I’ll be watching for my next lesson sir. 😊
Beautifully done. Stepping into something new, having it act in a very unexpected way, and you made the great save. Thanks for sharing. Steady wins the race.
There is nothing... and I mean NOTHING.. like the feeling of PURE GOLD.. in the palm of your hand. Always love hearing you say that. Beautiful gold bar and great pour lines. Thanks for uploading.
I love the chemistry of every one of your refineries. I read, liked all your comments. I agree with everything you mentioned. Keep up the good work & keep putting out this content. I've learned a lot from you. Thank you!
Thank yoy sir again. This was very informative as initially I was like wow that’s really smart. Until I saw the results now I know not worth the hassle. Thank you.
Excellent video once again thank you 😊 the struggle is real with the filtering process!!! I play with Escrap only because my feed stock is basically Free !!! The amount of time refining this material is insane but fun
Twenty years of oil field machining with many late nights on a big lathe because everyone is waiting on ya! I’m surprised I’m not dead. Thanks for sharing and I did learn something.
I did twenty years in the Navy. I remember waiting on the MR (machinery repairman) to cut new wearing rings for one of the fresh water pumps on the distilling plant. We had no water to take showers while underway until he got them rings cut. Them the whole ship was waiting on us to reassemble the pump and get the evaps back up and running so they could wash up. But that’s ok, I work better under pressure.
Appreciate the video! I know it’s kind of a taboo subject on TH-cam but I’m really interested in the financials behind buying scrap gold / finding the chemicals for the best prices / selling the refined gold for profit etc. Thanks again!
I love to see the honest results of experiments like this. The bulk of the brass is copper, which should be no problem when inquarting, but that 15% zinc and the lead tin soldier really changed everything. Awesome video Sreetips. Its cool to see you experimenting and showing why its better to stick with a sterling silver inquartation when possible. If not, use pure copper or pure silver.
I love to sit and watch your videos I learn so very much . Even though I don't do experiment such as yours . It's always good learn something new from a learn Ed person such as you .
I have watched so many of these videos now and I still find it fascinating. I am sure some time in the past person or group figured out how to do this in antiquity. That knowledge was lost and that is how the rumor of alchemy turning lead int gold came about.
Your most perfect bar yet, and at today's spot price just a bit over $7300. And it seems that the high-purity gold precipitate tends to clump together (so that less of it gets poured off with the waste solution) than the low-purity stuff earlier.
Excellent video! Really proves the point that your silver enquartation approach works really well compared to using gold filled scrap. Still, in spite of the extra work you produced another stunning bar with a very good yield. Well done! 👍
Very interesting to see you use the gold filled scrap this time and very interesting to hear the facts of "gold plated", I will never buy this now after learning this from you. Nice that the yield was close, I wonder how much gold is in the stockpot? Awesome video. 👍
I think he kinda had to with this round. He said during one of his recent platinum videos that Mrs. Sreetips wasnt happy with him getting behind due to the platinum stuff.
I think this video perfectly illustrates the difference between how things work in theory and how they work in reality. I thought using gf scrap was a great idea, but I never would have thought you had the troubles with it that you did. Great video.
Even in these difficult situations,...you produced an excellent yield and excellent content. Must be difficult to concentrate on the video-content side, while working on a stubborn process.
Great work as usual Sreetips. The zinc and copper will use a little more nitric acid than the silver would have because these metals both have a valence of 2 rather than the valence of 1 for silver. Interestingly, under some controlled reaction conditions, zinc will form nitrous oxide "laughing gas" instead of the brown nitrogen dioxide that usually forms.
Don't know whether this might be useful but I used to have to extract settled sediments from the liquids, the problem was you couldn't Syphon off all of the liquid, so I got a wine bottle with a plastic screw top, cut off the bottom with a tile saw, then you could fill with the liquid and leave it, the sediments settled on the plastic cap right in the neck, so you could Syphon off almost all the liquid without disturbing the sediment, it's also how the painters extract pigment from water based paint out of brushes, it just flows out of the brush and falls to the bottom without circulation,
You are welcome! Tremendous video of a tremendous effort with a tremendous result that I watched in tre instalments and which I give tre tumbs up--->👍👍👍
Considering that a lot of colloidal gold went to your temporary waste container while cleaning the precipitated gold, the yield was really good. I believe it was so close to the theoretical yield because of the extra from the gold filled material, about 5 to 6 grams. Anyway, that's a messy alternative to be used when you have no silver/copper readily available, but it is surely not ideal.
Great video and it seems like a real pain to process it this way. But at least it turned out a beautiful bar. Seemed to break the gold down a lot more than silver.
Not only is the Zinc more reactive, but as it is removed early, it's absence will leave channels through the remaining mostly copper alloy. Those channels will add a lot of surface area, thus speeding up the remainder of the extraction. You might find yourself using this more often, to save time. Lets hope it doesn't add any problems. Of course, you could also inquart using a mixture of sterling silver and gold filled scrap.
I think he spent maybe up to 10 hours extra to recover 6 extra grams from the gold filled scrap. Combined with the extra headache, I think it's not worth using this method.
@@lazyman114 Trying something new always takes more time. Doesn't mean it's not worth trying. Best way to learn something new. The problem Steetips ran into is not inherent to this method. It's a problem whenever the inquarted gold is much less than 25%. At 25% you get a gold sponge.
When you get the purple gold nanoparticles in suspension, I wonder if adding a small amount of SMB would act as a surfactant, and cause them to condense? I know that it can make particles of many atoms when it reacts with chloroauric, but I wonder if it can have the same effect on particles in suspension. Next time you get some 'purple gold' it might be worth putting some in your spot wells and trying different remedies like copperous, or even lye. If you can find an additive that efficiently condenses colloidal gold, it might open up other refining options.
Been doing my revision. (You've got me doing my balanced equations again!!) Seems to me that the white clouding solid making that first filtering a nightmare was almost certainly Lead sulphate. Anyone agree? Sree mentioned that lead solder was likely present in the Gold Filled material. Honestly, this channel is reigniting my love of chemistry all over again! If I'm ever at a pub quiz, I'm definitely going to know what Muriatic Acid is more properly known as!! Thanks again for all your effort.
Absolutely excellent video Sir Sreetips!💯This is exactly how we learn brother! A huge THANK YOU!!! You did a incredible job cleaning up that solution! Bravo!!! Is there a difference between Stump-out and Food grade SMB?
Beautiful bar! Super interesting process this time. It looked like you were loosing quite a bit when the gold was in that finely divided state during the pouring off process. It’s really interesting the different states the gold goes through during the process. Any ideas for future inquarting, i.e different metals or just going to stick with sterling?
This gentleman sound's like a Airplane Captain I feel save to fly with. I am watching this for 3 days, it is really interesting. Thank you. Good bless America and it's service to the world.
I enjoyed the longer video. This was a fun one to watch. I knew in the end. You were going to produce an amazing looking bar of pure .999 gold. I'm looking forward in you tackling the gold refining waste. This gold filled experiment throw a lot if junk into it im guessing. Fun stuff Sreetips.
Hooyah Shipmate!!! I love your videos. You do great work. I have an idea, could you put your fume hood over a regular glass topped stove? Then you would have four burners at the ready and you wouldn’t need to keep replacing the single burner so often. Thank you.
Also a self cleaning oven gets like up to like 900 degrees. That might help instead of using your outside oven/ kiln. I hope not to be nosy, but after seeing your videos from years ago it seems like you are constantly trying to improve your processes. I’m mostly thinking of how I’m gonna make my refining work center. You motivate me!! If you can do it I can too.
Me and my wife recently discovered your channel and we have been bingewatching your content. It has a very strong ASMR video feel to it. Now we got talking about your accent and im thinking Boston, the wife is saying Vermont. How wrong are we?? Absolutely enjoying the video's!
Wow at the final dissolve in aqua regia, it seems the solution was so saturated with dissolved gold I think that's why it was having trouble dissolving more until you added more Hcl! You can tell when that auric chloride is that dark the yield is going to be crazy! Amazing video, and it was a dirty procedure, but as usual, you turned it into a win!
So glad to see a happy ending on this. It sounded like it wasn't going too well and I was afraid of what the actual yield was going to be, but in the end, it's a gorgeous bar and very little (temporary) loss of gold!
that was incredible, my heart sank a bit when I saw the yucky color of the first aqua regia dissolve and first precipitate, but then the HCl boil(s) cleaned it up, wow!, and I was thinking you should process your waste solution right away as it seemed too much was getting poured into it but your final weight indicates probably not, also wow!.
Awesome video love it. I would like to see you refine gold-plated material I think that would be cool to see starting weight vs refined weight, just a suggestion. Thanks again
@@NOFX0890 Gold plated scrap is not worth refining, probably even with a stripping cell. It might be profitable for a big refinery that could treat it as a secondary recovered material. Heap leaching might also be worthwhile if you have a few tons of the scrap - but that process is really nasty.
I really enjoy these longer videos like this. I prefer a long video to multiple shorter ones I think. I’m guessing you won’t be enquarting with gold fill again anytime soon… ouch… still, pulled it off. Challenge complete. Lol… 👍💪💪
Hello Mrs and Mr sreetips. I love the way you take us thrue wats happen. Ten tumbs up from me😊. I coment before i have see the whole clip, becouse i now you i now you make it🌹. Have a nice weekend, and my god bless you more, and more. Thank you both of you. Arne
Ended up with a good looking bar! First drop the liquid was the same color skin turns when wearing gold filled jewelry! Have you thought about going to a greater gold percentage with the alloy to see if it prevents it from going colloidal?
@@sreetips the other thought would be to re-melt after the first couple of nitric acid baths when you are no longer getting a reaction and most of the zinc is gone. You would be left with mostly copper and some silver and it might keep it from breaking down into colloidal.
Just so you know. I look forward to watching your videos. I have learned so much, and chemistry is like magic. Thank you. So with the colloidal gold, can't you just dry it and remelt it, weigh the bar and add silver to enquart?
113.08 i noticed that after your 2nd refining the gold became more solid or not as fine particulated as the 1st refining did, It poured out alot easier.
I see the benefits of using the gold filled material for inquarting. I wonder what the cost benefit is compared to silver. A higher gold yeald, but not much silver to recover. Still fun to watch.
I refine silver also. The 1st step is to dissolve it in hot dilute nitric. So I missed an opportunity to get some more silver dissolved. I have much sterling that needs to be dissolved. But I’ve also got a bunch that needs to be melted, granulized, and run through my silver cell. I’m way behind on everything.
Today I am increasingly aggravated by my state legislative branch. Again, they have reached into my pocket and helped themselves to take money which does not belong to them. I am distraught to the very wickedness of their hands and I am resolved to halt this ongoing molestation of my very person. FU legislation!
Wow. Did not expect that much difference (powder instead of a sponge.) Looks like you could cut back on the amount of base metal when it contains zinc. I don't think you made a mistake trying this. You just need to tweak the process a bit, and it could well work out better than using just sterling silver.
I agree, though he uses sterling to refine both the gold and the silver. I figured it'd be easier to refine the GF than it would be to increase the karat yield. Would be nice if he tried again at some point.
Gold filled takes several days to get it done. I can refine gold to high purity in ten or twelve hours. Combining the two processes into one, like in this video, seems that it defaults to to longer of the two processes, time wise.
Thanks for a different method something new I learnt about gold filled jewellery to gold plated. You have great patience. I reckon that would be very beneficial especially with gold. Well done 👍 A big problem I have is not all gold is marked. But I've come across 18 K with no marks. It must be jewellery that is home made perhaps??
Sometimes a jeweler will size a ring and cut out the karat stamp. The jeweler doesn’t care about being able to ID the metal that the ring is made of. Only about getting it to fit the customer properly. The jeweler will put 10k clasp on a 14k chain because it’s a more durable alloy than 14k - according to him (the jeweler).
I have seen gold from Thailand, although many decades ago, that was in the range of 18k to 20k and unmarked. Really soft jewelry however, not good for everyday wear.
I was very excited to see this method but then bam problem's i think that I will be doing it with silver thank you for showing us how much time can be added to the process this way very informative and interesting video thank you for sharing this six stars sir
Could you have used HCL to dissolve the zinc first, without dissolving copper or silver? It would be cool to show off the chemistry of the reactivity series. Or would that have made the colloidal gold issue worse?
Hi Screetips… could you please weight one of your gold liquids some time? I know it is an obvious thing but everyday people pick up a carton of milk and know how much it will weigh… just interesting to see a liquid of the same volume could weight three times heavier than “normal” ;)
At one point last year you talked about putting ram-fingers and other electronic scrap into your stock pot and let it react so the foils would come off and it would be possible to recover the gold. Could you do something similar with GF material? Let the brass replace the sacrificial copper?
Because Zinc is so high in the reactivity series and Brass is a Zinc containing Alloy; If it is in high enough concentration It will precipitate the metals below. Fouling the stockpot and complicating the process.
Hey sreetips maybe you should try to siphon out waste solution after you have precipitate with SMB give it some time to settle out.. Coz it seems like your pouring out most of Ur gold into temporary waste solution flask this brings down your yield..
My idea for a cool bit of video, or video in itself, is showing how the lead in solution reacts to the sulphuric acid by adding a bit of lead or solder to what would be a gold refining process Obviously it would only be a proof of concept video and not actually include the use of gold in solution, but maybe some weighed out (gram or two) before and after lead/solder to a silver or copper solution? Just a thought. Thank you for the awesome videos.
with how this refining has gone, it may be worth added some stumpout to the waste, and filtering it, to catch any gold. sending the rest to be captured with copper pipes, as per normal
Zinc is about a third less dense than silver, so every 1 gram of zinc you add takes up the volume of 1.47 grams of silver. So a larger fraction of the volume of the alloy is going to be base metals. With the same amount of gold stretched over a larger volume, the resulting gold particles will be smaller. So it's basically the same adding way too much silver, which would also end up giving you that annoying fine powder. At least, that's my reasoning. Density in alloys is probably not that simple. Somebody who knows more can correct me.
SREETIPS is the precipitate silver chloride during your nitric acid boils? I’m a few vids behind and need to catch up. Thanks for always keeping me interested in chem. You truly are a modern day wizard sir?
It would be cool to see a video explaining the cost to profit ratio. Like how much you spend on chemicals, electricity, and metals compared to the value of the finished product.
I believe it is negative. The scrap metal cost is fixed at scrap value. The refining costs are expensive. If you add up the two costs it is a big loss. Also, a percentage of the scrap material is lost during refining. The gold value in dollars per weight is the same regardless of purity. I don't think the cost in dollars is his mission. The silver from karat scrap is very profitable IMHO. 👍
The costs of equipment repairs, replacements, and upgrades and now replacements again, has been significant.
@@anthonyrstrawbridge Diamonds have no resale value. None.
He’s not doing it for profit. It’s a hobby so profit isn’t the primary mover.
@@Heymrk 👍👍👍♥️✌️
@@anthonyrstrawbridge And don't forget the TH-cam revenue.
49:17 "It's getting late. I'm tired. This is when mistakes happen." This quote should be noted as it is knownledge to live by. Not only pertaining to gold refining but just in general. Stay safe everyone!
You stay safe! I'll LIVE! Thank you!
Yup. Always quit if you get tired.
@@datbeast767 Nothing much would get done if I stop after getting tired. In my case, I get most productive when it's bedtime.
-That white gold in your 14k portion is Rh plated.
-You could use the Au electroplated material to inquart. The Au is plated on brass, which is Ni and then Au electroplated. Just assume that all the electroplated weight is 'inquart.' You'd be adding in the same Cu and Zn that's part of your Au filled material.
-That junk metal is 'brass' or 'Zn diecast', that is zincate immersion (Na2ZnO3) coated, Cu flashed, Cu plated, Ni flashed, then Au flashed. Zn is just as useful to inquart as Cu or Ag. It all comes out when you do your HNO3 boils.
-The material at the bottom of your melt dish is likely stainless steel.
-I'm surprised at how little slag you have floating on top. That'd be your Zn or maybe Pb oxides. Looks like they might have been rinsed out into the drain when you spatter cast your melt into the cooling water tank.
-The activity series isn't going to predict reactivity with acid. If anything, the reaction you got would be from the amount of Cu and Zn in the inquarted gold. Whatever Zn you add to your process will pas all the way through to your final Fe waste stream and be discharged in any liquid supernate.
-Jeez. I didn't even consider Sn.
-That white sediment on the bottom of the beaker, after the HCl boil, is your PbSO4.
-Double, triple or even quadruple up on your filter paper for the Buchner funnel. In the old days, we'd use an asbestos fiber filter mat. I'd think you could use an activated carbon layer on top of the filter papers to help you get your clear solution. Of course, you'd need to add the carbon to your filter paper stash for later metal recovery.
Yes, the filtration step will be slow, but less sensitive to high pressure vacuum.
That IS nice Au!
Long road to well done!
Mr. Foote. Thank you for the lesson of the day. You answered my ?’s and I’m sure some of SREETIPS’ as well. Keep posting here please. I’ll be watching for my next lesson sir. 😊
Beautifully done. Stepping into something new, having it act in a very unexpected way, and you made the great save. Thanks for sharing. Steady wins the race.
80 Minutes of goodness on a Saturday morning. Thank you good Sir.
There is nothing... and I mean NOTHING.. like the feeling of PURE GOLD.. in the palm of your hand.
Always love hearing you say that. Beautiful gold bar and great pour lines. Thanks for uploading.
Interesting to see how different this went in comparison to using silver. another great vid!
I love the chemistry of every one of your refineries. I read, liked all your comments. I agree with everything you mentioned. Keep up the good work & keep putting out this content. I've learned a lot from you. Thank you!
Thank yoy sir again. This was very informative as initially I was like wow that’s really smart. Until I saw the results now I know not worth the hassle. Thank you.
Excellent video once again thank you 😊 the struggle is real with the filtering process!!! I play with Escrap only because my feed stock is basically Free !!! The amount of time refining this material is insane but fun
Twenty years of oil field machining with many late nights on a big lathe because everyone is waiting on ya! I’m surprised I’m not dead.
Thanks for sharing and I did learn something.
I did twenty years in the Navy. I remember waiting on the MR (machinery repairman) to cut new wearing rings for one of the fresh water pumps on the distilling plant. We had no water to take showers while underway until he got them rings cut. Them the whole ship was waiting on us to reassemble the pump and get the evaps back up and running so they could wash up. But that’s ok, I work better under pressure.
Nice recovery Sreetips!....and the bar looked very uniform. A++++
If for nothing else, this was very interesting. To see a different inquartation with something different than silver. Thanks for the hard work.
Thank you for doing this video. I love it when people put themselves in situations that they're new at.
Great video, it’s fun to watch you try new things…always learning! Maybe due to the increased reactivity of the base metal less is required.
Appreciate the video! I know it’s kind of a taboo subject on TH-cam but I’m really interested in the financials behind buying scrap gold / finding the chemicals for the best prices / selling the refined gold for profit etc.
Thanks again!
Although this didn't all go to plan, it was a great thing to watch, to see you think on you feet, and get a great result is a testament to you sir!
I love to see the honest results of experiments like this. The bulk of the brass is copper, which should be no problem when inquarting, but that 15% zinc and the lead tin soldier really changed everything. Awesome video Sreetips. Its cool to see you experimenting and showing why its better to stick with a sterling silver inquartation when possible. If not, use pure copper or pure silver.
I love to sit and watch your videos I learn so very much . Even though I don't do experiment such as yours . It's always good learn something new from a learn Ed person such as you .
Great video. It’s a lot more work this way. The gold bar is beautiful. Awesome job.
I have watched so many of these videos now and I still find it fascinating. I am sure some time in the past person or group figured out how to do this in antiquity. That knowledge was lost and that is how the rumor of alchemy turning lead int gold came about.
OMG! I am so excited to watch this just because it's an hour and 20 minutes! Can't wait!
Your process is wonderful to watch and your voice is extremely soothing thank you for another excellent video
All these videos and still my favorite part is the melt table. Thanks Sreetips
That trick with dissolving the gold off the inside of the beaker was pretty cool.
Your most perfect bar yet, and at today's spot price just a bit over $7300. And it seems that the high-purity gold precipitate tends to clump together (so that less of it gets poured off with the waste solution) than the low-purity stuff earlier.
Now this is gold content. Love the experimentation vids.
Excellent video! Really proves the point that your silver enquartation approach works really well compared to using gold filled scrap. Still, in spite of the extra work you produced another stunning bar with a very good yield. Well done! 👍
Very interesting to see you use the gold filled scrap this time and very interesting to hear the facts of "gold plated", I will never buy this now after learning this from you. Nice that the yield was close, I wonder how much gold is in the stockpot? Awesome video. 👍
Love watching you work sreetips. I never miss a video.
As always, great video,beautiful bar.
Really good idea, getting even more efficient with the process for gold filled material. I love seeing a new process or idea
I think he kinda had to with this round. He said during one of his recent platinum videos that Mrs. Sreetips wasnt happy with him getting behind due to the platinum stuff.
I think this video perfectly illustrates the difference between how things work in theory and how they work in reality.
I thought using gf scrap was a great idea, but I never would have thought you had the troubles with it that you did. Great video.
I was anticipating the gold falling apart. It just didn’t happen as quickly as I was expecting.
You've gotten way safer with your technique in these videos. Love this and really enjoy the content you make. Awesome content!
Your Videos have soul cleansing quality.
Even in these difficult situations,...you produced an excellent yield and excellent content. Must be difficult to concentrate on the video-content side, while working on a stubborn process.
Great work as usual Sreetips. The zinc and copper will use a little more nitric acid than the silver would have because these metals both have a valence of 2 rather than the valence of 1 for silver. Interestingly, under some controlled reaction conditions, zinc will form nitrous oxide "laughing gas" instead of the brown nitrogen dioxide that usually forms.
I noticed some white foam during the nitric boils.
Don't know whether this might be useful but I used to have to extract settled sediments from the liquids, the problem was you couldn't Syphon off all of the liquid, so I got a wine bottle with a plastic screw top, cut off the bottom with a tile saw, then you could fill with the liquid and leave it, the sediments settled on the plastic cap right in the neck, so you could Syphon off almost all the liquid without disturbing the sediment, it's also how the painters extract pigment from water based paint out of brushes, it just flows out of the brush and falls to the bottom without circulation,
Thank you streetips. The audio quality is almost perfect.
You are welcome! Tremendous video of a tremendous effort with a tremendous result that I watched in tre instalments and which I give tre tumbs up--->👍👍👍
That's a good looking pour sir! Cheers from Canada! 🇨🇦👍
Fascinating video as always I thought the splatter board idea was quite ingenious in its simplicity.
Thanks for showing us that experiment.
Considering that a lot of colloidal gold went to your temporary waste container while cleaning the precipitated gold, the yield was really good. I believe it was so close to the theoretical yield because of the extra from the gold filled material, about 5 to 6 grams.
Anyway, that's a messy alternative to be used when you have no silver/copper readily available, but it is surely not ideal.
well sure it is messier, BUT on the other hand you do 2 refinings in one, scrap and carat, so it seems like it does save work, and quite a bit
Man I fell asleep last night at 1:04:09 !! Finishing now! Man this reminds me of inquiring with too much copper!! Nasty mess lol so much extra work
A lot less loss than anticipated
Great video and it seems like a real pain to process it this way. But at least it turned out a beautiful bar. Seemed to break the gold down a lot more than silver.
Another stunning looking bar of gold, well done Sir..🙂👍
Not only is the Zinc more reactive, but as it is removed early, it's absence will leave channels through the remaining mostly copper alloy. Those channels will add a lot of surface area, thus speeding up the remainder of the extraction.
You might find yourself using this more often, to save time. Lets hope it doesn't add any problems. Of course, you could also inquart using a mixture of sterling silver and gold filled scrap.
Might be worth experimenting to see at what percent of zinc does the gold start to fall apart and form suspensions.
Using silver feeds the silver cell.
I think he spent maybe up to 10 hours extra to recover 6 extra grams from the gold filled scrap. Combined with the extra headache, I think it's not worth using this method.
@@lazyman114 Trying something new always takes more time. Doesn't mean it's not worth trying. Best way to learn something new.
The problem Steetips ran into is not inherent to this method. It's a problem whenever the inquarted gold is much less than 25%. At 25% you get a gold sponge.
Very Beautiful bar I love how it has a fingerprint look on it . Keep up your terrific videos . 👍👍👏👏
This is interesting. Thank you.
When you get the purple gold nanoparticles in suspension, I wonder if adding a small amount of SMB would act as a surfactant, and cause them to condense? I know that it can make particles of many atoms when it reacts with chloroauric, but I wonder if it can have the same effect on particles in suspension. Next time you get some 'purple gold' it might be worth putting some in your spot wells and trying different remedies like copperous, or even lye. If you can find an additive that efficiently condenses colloidal gold, it might open up other refining options.
I've been learning so much. I might try my hand at metals recovery.
I got a kick out of the aqua regia cleaning up that nasty looking glass! Great video!
Awesome video as always , was quite the adventure !!
'Atta boy. That's more like the result we're used to. And the pour lines on that little bar are amongst the nicest I've seen from you lately.
Been doing my revision. (You've got me doing my balanced equations again!!) Seems to me that the white clouding solid making that first filtering a nightmare was almost certainly Lead sulphate. Anyone agree? Sree mentioned that lead solder was likely present in the Gold Filled material. Honestly, this channel is reigniting my love of chemistry all over again! If I'm ever at a pub quiz, I'm definitely going to know what Muriatic Acid is more properly known as!! Thanks again for all your effort.
Tin and nitric form metastannic acid, or tin paste. It will clog a filter like trying to pull Elmer’s glue through a filter paper.
@@sreetips and this is why I should not be trusted to get out the chemistry set!! thank you!
Absolutely excellent video Sir Sreetips!💯This is exactly how we learn brother! A huge THANK YOU!!! You did a incredible job cleaning up that solution! Bravo!!! Is there a difference between Stump-out and Food grade SMB?
Thank you. No difference.
Beautiful bar! Super interesting process this time. It looked like you were loosing quite a bit when the gold was in that finely divided state during the pouring off process. It’s really interesting the different states the gold goes through during the process. Any ideas for future inquarting, i.e different metals or just going to stick with sterling?
I have more sterling that needs to be dissolved so I’ll probably use that.
This gentleman sound's like a Airplane Captain I feel save to fly with. I am watching this for 3 days, it is really interesting. Thank you. Good bless America and it's service to the world.
Thank you!
Don't thank me, please I didn't do anything. But this videos are Legendary.
th-cam.com/video/5z0wUA4q1yA/w-d-xo.html this person has all the hacks on TH-cam.
Excellent.
I enjoyed the longer video. This was a fun one to watch. I knew in the end. You were going to produce an amazing looking bar of pure .999 gold. I'm looking forward in you tackling the gold refining waste. This gold filled experiment throw a lot if junk into it im guessing. Fun stuff Sreetips.
I’m might jump right on the waste and get that gold out of there.
@@sreetips I was thinking about that.
Hooyah Shipmate!!! I love your videos. You do great work. I have an idea, could you put your fume hood over a regular glass topped stove? Then you would have four burners at the ready and you wouldn’t need to keep replacing the single burner so often. Thank you.
Also a self cleaning oven gets like up to like 900 degrees. That might help instead of using your outside oven/ kiln. I hope not to be nosy, but after seeing your videos from years ago it seems like you are constantly trying to improve your processes. I’m mostly thinking of how I’m gonna make my refining work center. You motivate me!! If you can do it I can too.
That’s not a bad idea except, the stone wouldn’t hold up to exposure to the acid fumes.
Me and my wife recently discovered your channel and we have been bingewatching your content. It has a very strong ASMR video feel to it. Now we got talking about your accent and im thinking Boston, the wife is saying Vermont. How wrong are we?? Absolutely enjoying the video's!
Iowa
@@sreetips oh lord.... haha tnx for your reply. Love what you are doing
From the pimple to a mighty dimple bar! Very nice!
Wow at the final dissolve in aqua regia, it seems the solution was so saturated with dissolved gold I think that's why it was having trouble dissolving more until you added more Hcl! You can tell when that auric chloride is that dark the yield is going to be crazy! Amazing video, and it was a dirty procedure, but as usual, you turned it into a win!
So glad to see a happy ending on this. It sounded like it wasn't going too well and I was afraid of what the actual yield was going to be, but in the end, it's a gorgeous bar and very little (temporary) loss of gold!
That’s exactly how I was feeling
that was incredible, my heart sank a bit when I saw the yucky color of the first aqua regia dissolve and first precipitate, but then the HCl boil(s) cleaned it up, wow!, and I was thinking you should process your waste solution right away as it seemed too much was getting poured into it but your final weight indicates probably not, also wow!.
After it (waste solution) settles over night I may jump on it and get the gold out.
Awesome video love it. I would like to see you refine gold-plated material I think that would be cool to see starting weight vs refined weight, just a suggestion. Thanks again
Search for his vids on sulphuric acid stripping cell.
He has a video where he does exactly that, if I recall correctly.
@@buggsy5 certainly.
Then not long after, he sold all his gold plated scrap.
Telling.....
Is the juice worth the squeeze.
@@NOFX0890 Gold plated scrap is not worth refining, probably even with a stripping cell.
It might be profitable for a big refinery that could treat it as a secondary recovered material. Heap leaching might also be worthwhile if you have a few tons of the scrap - but that process is really nasty.
You should try using your silver shot to inquart and use the same constants you use for Sterling.
Over an hour sree refining video on a Friday night 😎😎.
😊🇺🇲
I really enjoy these longer videos like this. I prefer a long video to multiple shorter ones I think. I’m guessing you won’t be enquarting with gold fill again anytime soon… ouch… still, pulled it off. Challenge complete. Lol… 👍💪💪
Hello Mrs and Mr sreetips. I love the way you take us thrue wats happen. Ten tumbs up from me😊. I coment before i have see the whole clip, becouse i now you i now you make it🌹. Have a nice weekend, and my god bless you more, and more. Thank you both of you. Arne
This is my favorite show.
Beautiful recovery from what looked like a colossal mess.
Great vid Sreetips.
Ended up with a good looking bar! First drop the liquid was the same color skin turns when wearing gold filled jewelry! Have you thought about going to a greater gold percentage with the alloy to see if it prevents it from going colloidal?
Didn’t think of it for this run. But it’s not a bad idea.
@@sreetips the other thought would be to re-melt after the first couple of nitric acid baths when you are no longer getting a reaction and most of the zinc is gone. You would be left with mostly copper and some silver and it might keep it from breaking down into colloidal.
Just so you know. I look forward to watching your videos. I have learned so much, and chemistry is like magic. Thank you. So with the colloidal gold, can't you just dry it and remelt it, weigh the bar and add silver to enquart?
Yes,
113.08 i noticed that after your 2nd refining the gold became more solid or not as fine particulated as the 1st refining did, It poured out alot easier.
Higher purity tends to settle quickly and clump together nicely.
I see the benefits of using the gold filled material for inquarting. I wonder what the cost benefit is compared to silver. A higher gold yeald, but not much silver to recover. Still fun to watch.
I refine silver also. The 1st step is to dissolve it in hot dilute nitric. So I missed an opportunity to get some more silver dissolved. I have much sterling that needs to be dissolved. But I’ve also got a bunch that needs to be melted, granulized, and run through my silver cell. I’m way behind on everything.
Another amazing video as always
@7:00 here the stories, the memories, the tears and the smiles, the efforts and struggles of a multitude of humans is molten down into oblivion...
This has been happening since ancient times. Biblical.
Another great video and a beautiful gold bar.
Today I am increasingly aggravated by my state legislative branch. Again, they have reached into my pocket and helped themselves to take money which does not belong to them. I am distraught to the very wickedness of their hands and I am resolved to halt this ongoing molestation of my very person. FU legislation!
Most people are clueless about how their finances are being plundered.
Wow. Did not expect that much difference (powder instead of a sponge.) Looks like you could cut back on the amount of base metal when it contains zinc.
I don't think you made a mistake trying this. You just need to tweak the process a bit, and it could well work out better than using just sterling silver.
I agree, though he uses sterling to refine both the gold and the silver. I figured it'd be easier to refine the GF than it would be to increase the karat yield. Would be nice if he tried again at some point.
Gold filled takes several days to get it done. I can refine gold to high purity in ten or twelve hours. Combining the two processes into one, like in this video, seems that it defaults to to longer of the two processes, time wise.
I may try it again with a smaller quantity of karat scrap and reduce the amount of gold filled I add.
@@sreetips The basic idea was sound. But yeah, it was a large amount for a trial run.
That test for silver with HCl in the small beaker was inconclusive, led will give the exact same reaction.
During your final washes when your cooling off your solution with ice you should use a glass rod to stir it.
Thanks for a different method something new I learnt about gold filled jewellery to gold plated. You have great patience. I reckon that would be very beneficial especially with gold. Well done 👍 A big problem I have is not all gold is marked. But I've come across 18 K with no marks. It must be jewellery that is home made perhaps??
Sometimes a jeweler will size a ring and cut out the karat stamp. The jeweler doesn’t care about being able to ID the metal that the ring is made of. Only about getting it to fit the customer properly. The jeweler will put 10k clasp on a 14k chain because it’s a more durable alloy than 14k - according to him (the jeweler).
I have seen gold from Thailand, although many decades ago, that was in the range of 18k to 20k and unmarked. Really soft jewelry however, not good for everyday wear.
What ah Guy, and Great technician.
I was very excited to see this method but then bam problem's i think that I will be doing it with silver thank you for showing us how much time can be added to the process this way very informative and interesting video thank you for sharing this six stars sir
Interesting experiment, important lesson learned.
Could you have used HCL to dissolve the zinc first, without dissolving copper or silver? It would be cool to show off the chemistry of the reactivity series. Or would that have made the colloidal gold issue worse?
My guess is that it would make a mess
Hi Screetips… could you please weight one of your gold liquids some time? I know it is an obvious thing but everyday people pick up a carton of milk and know how much it will weigh… just interesting to see a liquid of the same volume could weight three times heavier than “normal” ;)
I did that exact experiment in my electrolytic gold refining videos type wohlwill into search block on my channel,
At one point last year you talked about putting ram-fingers and other electronic scrap into your stock pot and let it react so the foils would come off and it would be possible to recover the gold.
Could you do something similar with GF material? Let the brass replace the sacrificial copper?
Because Zinc is so high in the reactivity series and Brass is a Zinc containing Alloy; If it is in high enough concentration It will precipitate the metals below.
Fouling the stockpot and complicating the process.
Probably not a good idea.
Amazing video thanks for sharing as always.. How is your silver cell doing, we miss it lol
I’ll get some footage of it in my next video.
Hey sreetips maybe you should try to siphon out waste solution after you have precipitate with SMB give it some time to settle out..
Coz it seems like your pouring out most of Ur gold into temporary waste solution flask this brings down your yield..
It only looks like “most” of the gold. But it’s actually a small amount.
My idea for a cool bit of video, or video in itself, is showing how the lead in solution reacts to the sulphuric acid by adding a bit of lead or solder to what would be a gold refining process Obviously it would only be a proof of concept video and not actually include the use of gold in solution, but maybe some weighed out (gram or two) before and after lead/solder to a silver or copper solution? Just a thought. Thank you for the awesome videos.
Coming up, good suggestion.
@@sreetips Cool :D
Good show.
with how this refining has gone, it may be worth added some stumpout to the waste, and filtering it, to catch any gold. sending the rest to be captured with copper pipes, as per normal
Zinc is about a third less dense than silver, so every 1 gram of zinc you add takes up the volume of 1.47 grams of silver. So a larger fraction of the volume of the alloy is going to be base metals. With the same amount of gold stretched over a larger volume, the resulting gold particles will be smaller. So it's basically the same adding way too much silver, which would also end up giving you that annoying fine powder. At least, that's my reasoning. Density in alloys is probably not that simple. Somebody who knows more can correct me.
SREETIPS is the precipitate silver chloride during your nitric acid boils? I’m a few vids behind and need to catch up. Thanks for always keeping me interested in chem. You truly are a modern day wizard sir?
Silver chloride usually precipitates instantly when it comes in contact with hydrochloric acid.