I never seen a man giving a pure care into almost every detail "cleaning materials , equipment, safety, explanation" and so on . I can say that your origins come from a noble french family 👌🤣🤣🤣
Congrats, I must respect that all the refined platinum will fit in a 2 car garage, so I think understand the value of the knowledge it takes to produce it. With the knowledge comes the responsibility of handling danger close chemical reactions. This procedure will work on a much larger amount of material, thank you professor.
The smile on your face said everything even though you were knackered . You were very proud of that one Sreetips, great successful refine yet again. Never seen platinum produced before. Thank you ❤
It's so amazing to see how the acid in that solution just chews up the Zinc Metal 😮 . You astound me with every video I watch your an amazing teacher to us viewers . I absolutely love watching your videos .
Great work! All the time for a little button of this precious metal. It was worth it. I learned a lot about platinum group metals. Thank you for the great videos sreetips.
I wonder if he understands most of it himself! But by doing it you learn and by watching it you learn as well. If you learn from your own mistakes, you're doing good. If you learn from someone else's mistakes, you're doing excellent!
It's been 10 long days since I've been able to watch any of your vids. I'm glad to be back and to be able to continue watching your vids! Only 2 minutes into the vid, but wanted to say I've missed your vids. I wish I was in a position to be one of those to give you money. But being a single Parent on a slim budget is very difficult! I'm glad your wife is happy, heaven knows I've learned a great deal about that last year (the hard way)! Hope you have a GREAT Day and Year!!!!
😳 I was nervous around 1mg/ml cisplatin. 350g in 0.5ish liters is horrifying. Maximum respect. That orange liquid was 700x stronger than the strongest platinum based chemotherapy.
Awesome video series brother..! Simply fascinating how all that works and you have been able to learn these skills.. Thanks for the "shout out" and glad the package got there for you guys. Great work,, ! Will bid and donate more when we can,,
Hello and courtesy Dear Professor, I have a soil that has palladium and iron. I dissolved iron using dilute sulfuric acid. Now, I put the soil in an Aqua regia solution and heated it until the palladium dissolves. Is it necessary to neutralize nitric acid to precipitate the palladium in the acid? Can palladium be deposited with zinc sheet? What should I do to purify before melting?
@@sreetips Professor, DMG is very expensive in Iran. There is a little gold, a little platinum and a lot of palladium in my soil. I want to use Aqua regia acid and then use the zinc sheet for settling, should neutralization be done before using the zinc sheet? Master, I have been following you for 5 years from Iran and this is my honor.
That was stressful!!!!! Lol... Not in a bad way, rather, just all that you had to go through, and all the turmoil, and hoops you jumped through.... I personally do not think I will be harvesting my own P.G.M.'s, and will allow my friend to do what I collect, and will split the gains in a fair percentage... Ah, maybe down the road, as my experience comes up, I may attempt this avenue... Anyway, this video, although created all sorts of anxiety for me, was extremely satisfying to watch... I just mention, it does put into perspective, or why platinum is so costly, never mind the rarity of the element itself, as it really doesn't want to give itself up with out putting up a fight... Well done!!!
Hello professor Professor, I had a aqua regia acid containing platinum and palladium I added ammonium chloride to it to precipitate platinum, but because the pH of the aqua regia was zero and it was very acidic, the precipitate was dissolved again, then I added SODIUM HYDROXIDE to the solution and the pH became 4 and the aqua regia was heated and a mustard yellow precipitate was formed, which was dissolved in water. It dissolves but does not dissolve in distilled water and ammonium chloride Is this the platinum deposit?
Yes, I could have set then aside. But I didn't know exactly what they were and I know I'm guaranteed to get them back if they're safely tucked away in my new stock pot.
I hate, hate, hate refining the Platinum group metals! Though i had to learn to do it as part of the business, i nearly never refine any unless it's absolutely necessary! I get it isolated from other solutions and drop it with zinc. I then clean the zinc drop up with hcl til the metal is about 99%. That's Platinum black and as far as i go with it. The metals in the PGM group are such a pain in the ass to refine, unless you are dealing with a lot on a full time basis it's not worth it financially, but knowledge wise it is an asset. Business model wise mine comprises about 70% gold processing and 30% silver. Lou does all my PGM metals!
AQUILLA REFINING I have watched every single one of your videos and love watching you and Sreetips do your work. You both have inspired me and my love of metallurgic chemistry to experiment with some very small refining of my own silver.
me too, just to dangerous. I've got some more platinum jewelry that I want to refine and use formic acid to drop the platinum. I've got some sodium bromate so I'd like to try a bromate hydrolysis. I just want the experience but I do NOT want to become a regular platinum refiner. Too much pain in the $@%!
Muy lindo vídeo hermano tengo mi platino mal lavado se contamina quisiera saber como volver a empezar de nuevo mi trabajo espero su respuesta desde ya muchas gracias mi gmail www. romanbenitez1177@gmail.com ayúdame como precipitar de agua regia o en otra Fórmula espero ayuda desde ya muchas gracias
Bạn cho mình hỏi cách thu hồi platinh như vậy khả năng thu được latinh cao không.mình thấy sau khi câu nước nó màu vàng như còn sót latinh rất nhiều xin cảm ơn
Very cool, sreetips! It was a lot of work and time spent on the recovery and refining of the platinum button. It's worth $71.62 USD at today's spot platinum price (5/12/22 @ $10.70/gram). Well done, Sir, I am always captivated by your chemistry experiments. As I've previously mentioned, I am on the lookout for sterling silver to make the silver shot, and set up my first silver cell. It seems like the logical place to begin my journey into the recovery and refining of precious metals. Two months ago, I was totally ignorant of all of this. I had no idea how any of this was done. I now feel confident that I could do some of these experiments myself. I'll be starting slowly, and building as I go along with each experiment. I'm a firm believer in "safety first" and I'll install a fume hood and buy all of the personal safety equipment to protect myself and any observer, before I attempt any of these experiments! You are setting a fantastic example in personal safety, sreetips, and I take your example to heart.
I was wondering if you were going to get a mag stirrer!! I bet you're loving it :) One question, how much material, and what kind of gradient can be in the beaker before that thing gets bogged down?
I found my way into a whole lot of red foam which appears to be Platinum IV chloride (Stannous shows orange brown). Would you recommend doing the HCl and H2O2 and following what you did, or should I first convert to Platinum oxide using NAOH and then do what you did?
The critical concentration is 20ml of liquid per gram of metal. Concentration above or below this level could cause problems when precipitating the metals.
For the 174ml, being 20ml per gram, is that particular to one or the other you add? HCL or peroxide or the combination of both? is there a ratio of acid to peroxide? I suspect if too little acid is used to too much peroxide surely the platinum wouldn't be fully dissolved?
I have a gulf ball size round piece of metal .it is platinum I believe. It weighs about 1 and three quarters of a pound . It is very heavy for it's size ....probably because it has been smelted so it is more pure and it is about the right density about 21 .Now the native or natural platinum nuggets I have are about 14 in density .. .the loss in density is probably due to the other base metals and other pgm's in them. My question is this,...the ball I have that has been smelted, do I have to smelt it again to make it even more pure, or is smelting it once enough . Also where do I sell something like almost 2 pounds of platinum, and do I need to certify it and have it stamped, or can I sell it like it is?
A fantastic series you've produced here. Many thanks. VERY educational. In fact I think I've come to the conclusion that Pt and Pd are just not worth the effort for me. I'll stick with Au/Ag. But this does leave me with a problem that I'm not sure what is the best way to proceed. I have a little under 300gm of Pd salt I dropped with DMG. Rough calculation would tell me around 90gm Pd so definitely not something I can just let sit and forget about.. All filtered and dried but still just sitting there. I'm really torn as to how best proceed. Should I calcine or redissolve in AR? Should I do the HCL & H2O2? What about dissolving in ammonia? I'm THINKING about dissolving in HCL and H2O2, filter the life out of it and then drop with zinc. Wash with HCL and then what is left "should" be pretty pure. But I'm so fart out of my comfort zone here and I think I just don't have anywhere near enough experience to delve into these metals.
I've done this material. I dissolved in AR and experienced runaway reaction that spewed hot acid everywhere. Once the salt was in solution I cemented the metals out on zinc - there was much platinum in that material as well because the DMG brings down platinum as well. Once cemented and excess zinc removed with HCl, I dried the black powder to get a weight then dissolved in HCl and h2o2 to achieve a solution that was 1 gram of the black powder per 20ml of solution. Then I added ammonium chloride to drop the platinum. I filtered out the platinum salt and bubble chlorine gas into the palladium to convert the palladium to ammonia soluble salt of palladium. I dissolved the brick red ammonia soluble palladium salt in 10% ammonia, filtered, and reacidify with HCl to get the beautiful canary yellow pure palladium salt. Then burn the canary yellow salt in a fused Quartz dish. I'd love to get my hands on that much Pd salt, it would make a great video!
Thank you very much. This helps. The bulk of t he Pd has come from scrap electronics so I don't think the Pt content would be high enough to warrant the full processing, and frankly the idea of platinosis is enough to keep me away from messing with it. But what a world we live in when Pt contamination is an actual problem to be overcome. :)
When refining palladium, ammonium chloride must be added, even if no platinum is suspected. The ammonium chloride facilitates the production of the brick red ammonia soluble palladium salt during the chlorine bubble. No ammonium chloride and the chlorine bubble won't work. That's when I discovered that DMG will drop platinum (not a well known fact in the refining community). Since it was palladium dropped with DMG I thought that ONLY palladium would be present. But when I added the ammonium chloride I was astonished to see platinum precipitating, a lot of it. There is no substitute for experience. If you want that palladium done right contact Lou Britton at aurisnoble.com located in Akron Ohio. He is an expert in PGM refining and he'll treat you right - no rip-off worries.
The hexachloroplatinate will vaporize off into the air, causing loss of metal, if we hit it with a direct flame. Heating to drive off the other chemicals to form the platinum sponge is called calcining.
I rinsed the black powder well before drying it out before I added the HCl. Maybe some nitrosol compounds remained in the black powder and provided the oxidation. It's an enigma. Platinum group metals do some strange things.
I don't know. Aluminum is not widely used in refining gold and silver because it forms some compounds that can cause problems. This is what I've been told by more experienced refiners.
Well i appreciate you answering my questions so much, not very mamy people do, that i am going to tell you why i am asking, see im homeless and have been looking everywhere to get a couple thousand bucks just to shove off to the side, you knkw get a cell phone get a tent, some supplies , then just fade away and not have to ask people for money panhandling for change, so i started looking into recycling electronics( a nightmare really) then i spent 2 ywars now experimenring with precipotation of metals and distilling my acids to do stuff with, then i had a thought about seeing if there was any gold in honey, and tried precipititating the gold ( if there was any) out of it, using muriatic acid and aluminum, but it was a travesty, out of a 32 oz container of honey took in what was left a lot of really black precipitate, so i took that in to a precious metals place, with one of those fancy metal scanning assay machines, and read that there was 5 % gold and 5% silver and a good amount of iron. Now i am trying to find the best way to just precipitate the gold and silver out, just dont ruin any markets or start wars over honey bees, but it would be interesting i think as an chemist to see how much you could get out of a jar of honey, apologies for the small autobiography here. And if you find a better way than i did please let me know, for now i am tryong muriatic acid, bleach and aluminum, with some zinc pennies dropped in a bucket.
Oh and before i go , sounds gross, however, if you look up gold in poop, you would read an article about millions of dollars worth of precious metals being flushed, however they said that most of that was actually from detergeants and shampoo and beauty products, i tried to get some conditioner and boil it in muriatic acid and and it turned a nice bright yellow, but i used aluminum to precipitate it and it wasnt going that well, so this time i am going to do muriatic acid and bleach and make some zinc powder out of pennies, and see if it will work better. Just ideas i am actually becoming a bit like one of those people going, " haha what can i precupitate gold out of next , whisky?" Actually did try that, no assay , so dont know if it was gold but there was this bright brown precipitate, wasnt enough to hold onto though.
I understand you are zinc precipitating then HCl to clean it. Will this idea of peroxide and HCl work for SMB gold sponge? Then SMB again to pull the gold only out, then if there is Pt its ready to ammonium chloride the solution for the PT? You and your video's have been a great help. You always explain each step. Thanks
@@sreetips ok I sent another message its long about a precip thatb I didnt think worked and put back on heat and got a huge drop. What about that messsage, it very important what to do.
PTFE (Teflon) coated iron, there's a rotating magnet in the cooker base that moves it. PTFE is pretty much immune to acids, the biggest problem I can see is if the covering gets cut or cracks, the iron is going to become a major contaminate for whatever is in the beaker at the time.
we have about 200 grams of platinum lemel left over from jobs.we really need to start refining our own rather than selling it back to scrap and loosing about 70% on the $. I used to do this when I was an apprentice and it exploded on me once when I got the mix slightly wrong. its serious stuff
Refining platinum is nothing like gold or silver. It's much more dangerous. A fume hood is an absolute must. Platinum dissolved in acid forms a compound that is of the highest toxic skin sensitizers known. you would be better off finding a reputable refiner to do it for you. Or just sell it as-is.
Are you a chemist by trade or hobbyist? Some sketchy procedures going on...Nonetheless, did you end up processing the palladium? Quite expensive nowadays...
I got a "D" in the only chemistry class that I ever took back in high school over 40 years ago. You don't have to be a chemist to be a refiner, at my level (hobby). I've got over a dozen silver cell anode filters from my silver refining operation. There should be several grams of palladium in those slimes.
Well done!....You understand, chemistry, metallurgy and Stoichiometry, the latter is very, very important....Make a good sniper you, lol, first round hits.....Stoichiometric equations.
How do I extract platinum group metals from ore and then how do I precipitate them. I have read some different things like crush pan roast pan dissolve in AR then precipitate each specific metal using different chemicals. Which chemicals are used to precipitate rhodium platniun and palladium I am about to start getting ALOT of VERY high grade ore containing gold silver platniun palladium and rhodium as well as some of the base metals.. any help would be appreciated.
hey I found a PGM ore with a nugget running through it...probably the size of a brain/human that weighs 16.4 lbs..it passed the peroxide test and I'm trying to figure out what to do, chemicals like you or use my smelting furnace
Last time I looked these XRF machines were in the tens of thousand of $USD. Has the price come down? I'd love to have one but at my level it's too expensive.
Yay ! Congratulations ! You got it a bead after that HUGE amount of effort ! Awesome ! Do you think you'll d any Pt refining again ? You already have some experience ....
What type of half face mask and filters are you using? I find it really hard to find something which will work for those types of aggressive acids. Also are you wearing the mask throughout the whole refining process? I just ordered my 3M 6500 half mask with some ABEK1P3 filters, but still not entirely sure how suitable they will be for refining gold and platinum. I'm sure many of your viewers would appreciate a video in which you explain the fume hood and the filters its using to neutralise the acid fumes, as well as any PPE like the half mask and filters. You can also set up an associate Amazon account and post links to equipment used in your videos, would give you a little bit of extra income and I'm sure your subscribers would appreciate it :)
@@sreetips Thank you, is there any reason why the method you used to refine the platinum in this video was different to the method you used in your "Platinum Refining Practice With A Pure Platinum Coin Part 1of2 " video? In the other video you did use a reflex condenser.
That's the first time I ever seen anyone refine platinum before!
Nice Job!!
I never seen a man giving a pure care into almost every detail "cleaning materials , equipment, safety, explanation" and so on . I can say that your origins come from a noble french family 👌🤣🤣🤣
I always use "ashless" filter paper because I often need to incinerate the filtrate. You make the best videos available.
Your videos are as precious as the metals you refine!
Thank you!
You, Sir, have an impressive dish collection from the 70's and 80's
Yea he does
Congrats, I must respect that all the refined platinum will fit in a 2 car garage, so I think understand the value of the knowledge it takes to produce it. With the knowledge comes the responsibility of handling danger close chemical reactions. This procedure will work on a much larger amount of material, thank you professor.
The smile on your face said everything even though you were knackered . You were very proud of that one Sreetips, great successful refine yet again. Never seen platinum produced before. Thank you ❤
It's so amazing to see how the acid in that solution just chews up the Zinc Metal 😮 . You astound me with every video I watch your an amazing teacher to us viewers . I absolutely love watching your videos .
Gives you a lot of respect for the guys who do this on an industrial scale.
👍👍👍
Great work! All the time for a little button of this precious metal. It was worth it. I learned a lot about platinum group metals. Thank you for the great videos sreetips.
I did it for the education and to make the video. I've got some platinum jewelry to refine in a future video.
This is absolutely amazing. You Sir , are a chemistry genius! I am so mesmerized by these vids you produce .
beautiful work, the Platinum, the process, the video, the everything;
Great video. I wish I understood 1/4 of what you were doing but I watch anyway. Keep up the good work.
I wonder if he understands most of it himself! But by doing it you learn and by watching it you learn as well. If you learn from your own mistakes, you're doing good. If you learn from someone else's mistakes, you're doing excellent!
It's been 10 long days since I've been able to watch any of your vids. I'm glad to be back and to be able to continue watching your vids! Only 2 minutes into the vid, but wanted to say I've missed your vids. I wish I was in a position to be one of those to give you money. But being a single Parent on a slim budget is very difficult! I'm glad your wife is happy, heaven knows I've learned a great deal about that last year (the hard way)!
Hope you have a GREAT Day and Year!!!!
Welcome back Shane.
sreetips Good to be back!!
😳 I was nervous around 1mg/ml cisplatin. 350g in 0.5ish liters is horrifying. Maximum respect.
That orange liquid was 700x stronger than the strongest platinum based chemotherapy.
Awesome video series brother..! Simply fascinating how all that works and you have been able to learn these skills.. Thanks for the "shout out" and glad the package got there for you guys. Great work,, ! Will bid and donate more when we can,,
We could tell that it was hand made. She has quite a collection. Thank you very much.
Absolutely awesome! Cant imagine how heavy that button feels in my hand....
It ruptured the very fabric of spacetime
Thank you, Professor, for these wonderful, invaluable videos
couldn't find your ebay store...
Hello and courtesy
Dear Professor, I have a soil that has palladium and iron. I dissolved iron using dilute sulfuric acid.
Now, I put the soil in an Aqua regia solution and heated it until the palladium dissolves. Is it necessary to neutralize nitric acid to precipitate the palladium in the acid?
Can palladium be deposited with zinc sheet?
What should I do to purify before melting?
Palladium is soluble in nitric acid. The only one of the six sister metals that is. I like to use DMG to separate the palladium.
@@sreetips Professor, DMG is very expensive in Iran.
There is a little gold, a little platinum and a lot of palladium in my soil.
I want to use Aqua regia acid and then use the zinc sheet for settling, should neutralization be done before using the zinc sheet?
Master, I have been following you for 5 years from Iran and this is my honor.
Zinc will drop everything.
This is similar to my stock pot.
@@sreetips Thanks professor
A good man.You show everything.
Outstanding process. Thanks for sharing.
That was stressful!!!!! Lol... Not in a bad way, rather, just all that you had to go through, and all the turmoil, and hoops you jumped through.... I personally do not think I will be harvesting my own P.G.M.'s, and will allow my friend to do what I collect, and will split the gains in a fair percentage... Ah, maybe down the road, as my experience comes up, I may attempt this avenue... Anyway, this video, although created all sorts of anxiety for me, was extremely satisfying to watch... I just mention, it does put into perspective, or why platinum is so costly, never mind the rarity of the element itself, as it really doesn't want to give itself up with out putting up a fight... Well done!!!
Thank for sharing thies video ,i remided me my old colllage days ,and it potetialy may help me,May Allah bless you all :Amen
I have seen so many of your videos it seems like second nature now to just go around thinking about metal refining
Totaly useles trivia: @ 24:48 when Sreetips tilts the beaker and stirrer starts to slide dow, a "face" appears on the bottom of the beaker.
Wow , thank you , just came through my mind how it's made and I got all the answers, cheers
At 22:38, why not just pull the visible pieces of zinc out with tongs instead of melting with hydrochloric acid? Just wondering.
comme toujours you my best youtube video man
Belo trabalho,muito bem elaborado. Meus parabéns pelo feito.
good..sir..
palladium refing..zine..using...sogood
It is here.... the shiney part :D.... think I'm gonna grab a beer and watch it now...
Another Fantastic Episode!!! But man oh man... did this episode seem much more tedious than the normal gold melts
Would you do a rhodium one? Most likely sit rhodium from platinum rhodium?
Current spot price of platinum = $31.20/gram
Your yield = 6.6 g
Spot Value = $31.20 (USD)/gram * 6.6g = $205.92 (USD)
Your videos are fantastic! I'd love to learn more about the chemical reactions going on.
Fantastic Sir Sreetips.
Nice job Mr. Sreetips!!!
Great class.please tell me how many catlitic did you use to gey the 21 grams of precious metals or an average precious for each converter?than you
Hello professor
Professor, I had a aqua regia acid containing platinum and palladium
I added ammonium chloride to it to precipitate platinum, but because the pH of the aqua regia was zero and it was very acidic, the precipitate was dissolved again, then I added SODIUM HYDROXIDE to the solution and the pH became 4 and the aqua regia was heated and a mustard yellow precipitate was formed, which was dissolved in water. It dissolves but does not dissolve in distilled water and ammonium chloride
Is this the platinum deposit?
I’ve never tried sodium hydroxide. I don’t have much experience with platinum refining.
At 40:20 why add the metals to the stock pot? Aren't these essentially a purified mix of PGMs?
Yes, I could have set then aside. But I didn't know exactly what they were and I know I'm guaranteed to get them back if they're safely tucked away in my new stock pot.
great work very interesting.
i say Thank You for all the Knowhow that You share! with us, I have Contribute/Donate You at Paypal, thanks for this Job You do here!
Thank you very much!
I hate, hate, hate refining the Platinum group metals! Though i had to learn to do it as part of the business, i nearly never refine any unless it's absolutely necessary! I get it isolated from other solutions and drop it with zinc. I then clean the zinc drop up with hcl til the metal is about 99%. That's Platinum black and as far as i go with it. The metals in the PGM group are such a pain in the ass to refine, unless you are dealing with a lot on a full time basis it's not worth it financially, but knowledge wise it is an asset. Business model wise mine comprises about 70% gold processing and 30% silver. Lou does all my PGM metals!
AQUILLA REFINING I have watched every single one of your videos and love watching you and Sreetips do your work. You both have inspired me and my love of metallurgic chemistry to experiment with some very small refining of my own silver.
me too, just to dangerous. I've got some more platinum jewelry that I want to refine and use formic acid to drop the platinum. I've got some sodium bromate so I'd like to try a bromate hydrolysis. I just want the experience but I do NOT want to become a regular platinum refiner. Too much pain in the $@%!
Muy lindo vídeo hermano tengo mi platino mal lavado se contamina quisiera saber como volver a empezar de nuevo mi trabajo espero su respuesta desde ya muchas gracias mi gmail www. romanbenitez1177@gmail.com ayúdame como precipitar de agua regia o en otra Fórmula espero ayuda desde ya muchas gracias
1:49 It's really not a handout bro, u working hard out here and u don't gotta be filming but you are, and that's the service you're providing
Bạn cho mình hỏi cách thu hồi platinh như vậy khả năng thu được latinh cao không.mình thấy sau khi câu nước nó màu vàng như còn sót latinh rất nhiều xin cảm ơn
Unfortunately I don’t have much experience with platinum
@@sreetips cảm ơn bạn rất nhiều
Have you considered using a centrifuge to separate your precipitates instead of filter paper?
Not sure, but doesn't nitrating filter paper result in guncotton?
I don't think Sreetips is a ordinance guy.
@@ITechcompulock Doesn't he live on an Air Force Base?
Very cool, sreetips! It was a lot of work and time spent on the recovery and refining of the platinum button. It's worth $71.62 USD at today's spot platinum price (5/12/22 @ $10.70/gram). Well done, Sir, I am always captivated by your chemistry experiments.
As I've previously mentioned, I am on the lookout for sterling silver to make the silver shot, and set up my first silver cell. It seems like the logical place to begin my journey into the recovery and refining of precious metals. Two months ago, I was totally ignorant of all of this. I had no idea how any of this was done. I now feel confident that I could do some of these experiments myself.
I'll be starting slowly, and building as I go along with each experiment. I'm a firm believer in "safety first" and I'll install a fume hood and buy all of the personal safety equipment to protect myself and any observer, before I attempt any of these experiments! You are setting a fantastic example in personal safety, sreetips, and I take your example to heart.
When I first started I did small batches until I got the hang of it
you are the best - what is the ratio of time difference to dissolve platinum powder in Hydrochloric acid + Hydrogenparaoxide and Aquaregia .
I think it's about the same. Powder Pt will dissolve much faster than the solid metal.
I was wondering if you were going to get a mag stirrer!! I bet you're loving it :) One question, how much material, and what kind of gradient can be in the beaker before that thing gets bogged down?
Must have missed that bit, re-watched the beginning, looks like it will climb depending on the strength of the field!
I found my way into a whole lot of red foam which appears to be Platinum IV chloride (Stannous shows orange brown). Would you recommend doing the HCl and H2O2 and following what you did, or should I first convert to Platinum oxide using NAOH and then do what you did?
There are too many variables to consider. I don’t know what to tell you.
What is the best supplier for nitric acid? I have bought several 1 liter bottles on amazon at a cost of about $65.
I buy from GFS Chemicals
Is it possible to smelt directly after the zinc precipitation stage?
Yes, it can be melted. Smelt means rendering metals from ore.
I have some platinum ore. Can you process it using aqua Regia??? Thinking about trying it out tonight using a magnetic hot plate stirrer.
Rendering metals from ore is called smelting. I don't have any experience there.
I like your videos I've always been interested in gold refining techniques this is all new. chemistry bug has bit me.
Stirring stick thing is amazing , I’ll get some for the mrs
Another really interesting video. Can you explain the bit where you arrived at 174ml please. Where did the 8.7 x 20ml come from? Many thanks.
The critical concentration is 20ml of liquid per gram of metal. Concentration above or below this level could cause problems when precipitating the metals.
Does the volume of the solution displaced by the stir bar effect the concentration to the point that you have to factor it in
No, the level I'm looking for is from 15 to 20 milliliter a of liquid per gram of metal.
For the 174ml, being 20ml per gram, is that particular to one or the other you add? HCL or peroxide or the combination of both? is there a ratio of acid to peroxide? I suspect if too little acid is used to too much peroxide surely the platinum wouldn't be fully dissolved?
I have a gulf ball size round piece of metal .it is platinum I believe. It weighs about 1 and three quarters of a pound . It is very heavy for it's size ....probably because it has been smelted so it is more pure and it is about the right density about 21 .Now the native or natural platinum nuggets I have are about 14 in density ..
.the loss in density is probably due to the other base metals and other pgm's in them. My question is this,...the ball I have that has been smelted, do I have to smelt it again to make it even more pure, or is smelting it once enough . Also where do I sell something like almost 2 pounds of platinum, and do I need to certify it and have it stamped, or can I sell it like it is?
I’ve used ARA in Dallas. Talk to JC there he can help you. You’ll need to set up an account. aragold.com
You are genio my respec mister👍
You are great 👌
If the platinum mixture is concentrated by you and then you put a bunch of distilled water in it is it still concentrated
No, adding water will dilute it.
Thankyou Sir, it is super cool!
I’m working on one of these projects . Hoping it pays off
Very nice video. That is about $200 worth of platinum, how much do you reckon you used ito consumables?
I don’t know because this is my hobby and I don’t track expenses for each batch
did he mention where he extracted the platinum from?
I think this was from some catalytic converters.
Great video thanks again .would you ever consider processing ruthenium .i have not seen any procedures for it yet i know its soluble in bleach.
I don't have any experience with that yet.
Very cool! Thank you!
great job
Nice experiment,
I have some of these salts in large a quantity. Anyone do these on a large scale?
You could try Elemetal Direct (note no “N”). But I don’t think they will take anything wet.
dear sir can platinum be obtained by adding aluminum in place of zinc?
I don’t know. I’ve never tried aluminum.
A fantastic series you've produced here. Many thanks. VERY educational. In fact I think I've come to the conclusion that Pt and Pd are just not worth the effort for me. I'll stick with Au/Ag.
But this does leave me with a problem that I'm not sure what is the best way to proceed. I have a little under 300gm of Pd salt I dropped with DMG. Rough calculation would tell me around 90gm Pd so definitely not something I can just let sit and forget about.. All filtered and dried but still just sitting there. I'm really torn as to how best proceed. Should I calcine or redissolve in AR? Should I do the HCL & H2O2? What about dissolving in ammonia? I'm THINKING about dissolving in HCL and H2O2, filter the life out of it and then drop with zinc. Wash with HCL and then what is left "should" be pretty pure. But I'm so fart out of my comfort zone here and I think I just don't have anywhere near enough experience to delve into these metals.
I've done this material. I dissolved in AR and experienced runaway reaction that spewed hot acid everywhere. Once the salt was in solution I cemented the metals out on zinc - there was much platinum in that material as well because the DMG brings down platinum as well. Once cemented and excess zinc removed with HCl, I dried the black powder to get a weight then dissolved in HCl and h2o2 to achieve a solution that was 1 gram of the black powder per 20ml of solution. Then I added ammonium chloride to drop the platinum. I filtered out the platinum salt and bubble chlorine gas into the palladium to convert the palladium to ammonia soluble salt of palladium. I dissolved the brick red ammonia soluble palladium salt in 10% ammonia, filtered, and reacidify with HCl to get the beautiful canary yellow pure palladium salt. Then burn the canary yellow salt in a fused Quartz dish. I'd love to get my hands on that much Pd salt, it would make a great video!
Thank you very much. This helps. The bulk of t he Pd has come from scrap electronics so I don't think the Pt content would be high enough to warrant the full processing, and frankly the idea of platinosis is enough to keep me away from messing with it.
But what a world we live in when Pt contamination is an actual problem to be overcome. :)
When refining palladium, ammonium chloride must be added, even if no platinum is suspected. The ammonium chloride facilitates the production of the brick red ammonia soluble palladium salt during the chlorine bubble. No ammonium chloride and the chlorine bubble won't work. That's when I discovered that DMG will drop platinum (not a well known fact in the refining community). Since it was palladium dropped with DMG I thought that ONLY palladium would be present. But when I added the ammonium chloride I was astonished to see platinum precipitating, a lot of it. There is no substitute for experience. If you want that palladium done right contact Lou Britton at aurisnoble.com located in Akron Ohio. He is an expert in PGM refining and he'll treat you right - no rip-off worries.
@@sreetips I live in Akron! Thank you so much for letting us know about Auris Nobel LLC. (means alot)
How do you precipitate rhodium out of aqua regia?
Andrew, rhodium is still an enigma to me. I don’t know how.
Why do you cook it down to a sponge rather than just throw it directly into the crucible?
The hexachloroplatinate will vaporize off into the air, causing loss of metal, if we hit it with a direct flame. Heating to drive off the other chemicals to form the platinum sponge is called calcining.
Great work , about of dissoved platinuim in hot hcl , maybe the oxydation was happen when cimentation was dry under presence of oxygen , im not sure.
I rinsed the black powder well before drying it out before I added the HCl. Maybe some nitrosol compounds remained in the black powder and provided the oxidation. It's an enigma. Platinum group metals do some strange things.
@@sreetips all the best .
How much time did it tooked to dissolve the platinum with the hydrogen peroxide?
Thank you
Couple hours
@@sreetips thats mean faster than nitric way
I don’t think it’s faster than nitric. But it’s close.
@@sreetips with nitric acid it tooked 4 hours and half so 🤷♂️
I was dissolving the platinum mixed black powder, not solid metal.
Does aluminum work to precipitate out gold from aqua regia?
I don't know. Aluminum is not widely used in refining gold and silver because it forms some compounds that can cause problems. This is what I've been told by more experienced refiners.
Well i appreciate you answering my questions so much, not very mamy people do, that i am going to tell you why i am asking, see im homeless and have been looking everywhere to get a couple thousand bucks just to shove off to the side, you knkw get a cell phone get a tent, some supplies
, then just fade away and not have to ask people for money panhandling for change, so i started looking into recycling electronics( a nightmare really) then i spent 2 ywars now experimenring with precipotation of metals and distilling my acids to do stuff with, then i had a thought about seeing if there was any gold in honey, and tried precipititating the gold ( if there was any) out of it, using muriatic acid and aluminum, but it was a travesty, out of a 32 oz container of honey took in what was left a lot of really black precipitate, so i took that in to a precious metals place, with one of those fancy metal scanning assay machines, and read that there was 5 % gold and 5% silver and a good amount of iron. Now i am trying to find the best way to just precipitate the gold and silver out, just dont ruin any markets or start wars over honey bees, but it would be interesting i think as an chemist to see how much you could get out of a jar of honey, apologies for the small autobiography here. And if you find a better way than i did please let me know, for now i am tryong muriatic acid, bleach and aluminum, with some zinc pennies dropped in a bucket.
Gold in honey. Who would have guessed that? Good luck with your recovery experiments.
@@sreetips yeah, but i havent found out how to stop it from becoming a big frothy volcano that even overflows a bucket.
Oh and before i go , sounds gross, however, if you look up gold in poop, you would read an article about millions of dollars worth of precious metals being flushed, however they said that most of that was actually from detergeants and shampoo and beauty products, i tried to get some conditioner and boil it in muriatic acid and and it turned a nice bright yellow, but i used aluminum to precipitate it and it wasnt going that well, so this time i am going to do muriatic acid and bleach and make some zinc powder out of pennies, and see if it will work better. Just ideas i am actually becoming a bit like one of those people going, " haha what can i precupitate gold out of next , whisky?" Actually did try that, no assay , so dont know if it was gold but there was this bright brown precipitate, wasnt enough to hold onto though.
I understand you are zinc precipitating then HCl to clean it. Will this idea of peroxide and HCl work for SMB gold sponge? Then SMB again to pull the gold only out, then if there is Pt its ready to ammonium chloride the solution for the PT? You and your video's have been a great help. You always explain each step. Thanks
I've not tried this so I don't know.
@@sreetips ok I sent another message its long about a precip thatb I didnt think worked and put back on heat and got a huge drop. What about that messsage, it very important what to do.
I get inspired from practice you friends. I want to know what is put in it that can stir stirring and turning around. It is not oxidized by acids
PTFE (Teflon) coated iron, there's a rotating magnet in the cooker base that moves it. PTFE is pretty much immune to acids, the biggest problem I can see is if the covering gets cut or cracks, the iron is going to become a major contaminate for whatever is in the beaker at the time.
we have about 200 grams of platinum lemel left over from jobs.we really need to start refining our own rather than selling it back to scrap and loosing about 70% on the $.
I used to do this when I was an apprentice and it exploded on me once when I got the mix slightly wrong.
its serious stuff
Refining platinum is nothing like gold or silver. It's much more dangerous. A fume hood is an absolute must. Platinum dissolved in acid forms a compound that is of the highest toxic skin sensitizers known. you would be better off finding a reputable refiner to do it for you. Or just sell it as-is.
sreetips thanks
Are you a chemist by trade or hobbyist? Some sketchy procedures going on...Nonetheless, did you end up processing the palladium? Quite expensive nowadays...
I got a "D" in the only chemistry class that I ever took back in high school over 40 years ago. You don't have to be a chemist to be a refiner, at my level (hobby). I've got over a dozen silver cell anode filters from my silver refining operation. There should be several grams of palladium in those slimes.
What do you call silver or gold after it has dropped out of solution and is like a fine dust? Is it nano silver or gold?
Cement silver
Are you near Phoenix Az. I've got about 20+ lbs I need to separate and refine.
I'm east coast. This is my hobby. I only refine stuff that my wife and I find.
really Interesting video! would you say the yield is higher in industry?
I don't have enough experience to answer. I only do this as a hobby.
@@sreetips thank you! How much hydrochloric acid can you keep after the process? Do you trow away all the chemicals used?
I've never kept any acids for reuse. It all goes into my stock pot for waste treatment.
What happened to the zinc. It evaporated?
The zinc goes into solution
Well done!....You understand, chemistry, metallurgy and Stoichiometry, the latter is very, very important....Make a good sniper you, lol, first round hits.....Stoichiometric equations.
How do I extract platinum group metals from ore and then how do I precipitate them. I have read some different things like crush pan roast pan dissolve in AR then precipitate each specific metal using different chemicals. Which chemicals are used to precipitate rhodium platniun and palladium I am about to start getting ALOT of VERY high grade ore containing gold silver platniun palladium and rhodium as well as some of the base metals.. any help would be appreciated.
Hi, what of Percentage
% oxygen peroxide did you use to dissolve the platinum and gold?
12%
Is there a book that I can buy
Refining precious metal wastes by C.M. Hoke available at gesswein.com type "Hoke" into the search block
hey I found a PGM ore with a nugget running through it...probably the size of a brain/human that weighs 16.4 lbs..it passed the peroxide test and I'm trying to figure out what to do, chemicals like you or use my smelting furnace
Not familiar with peroxide test. Get some in a test tube. Hit it with hot AR. Then test with stannous. That’s what I’d do if it were mine.
very informative
Were do you get your zinc?
rotometals.com (edited once for spelling)
I like your videos . You need XRF machine to know the metal purity(%) .Also it helps to calculate the amount of chemical use for the refining .
Last time I looked these XRF machines were in the tens of thousand of $USD. Has the price come down? I'd love to have one but at my level it's too expensive.
Good tutorial!!
Yay ! Congratulations !
You got it a bead after that HUGE amount of effort ! Awesome !
Do you think you'll d any Pt refining again ?
You already have some experience ....
I've got some more in my new stock pot and I've got some Pt jewelry. I'd like to do formic acid Pt drop and a bromate hydrolysis.
Well, you have taught me to never recover platinum. Out of your many awesome videos this one, gold pins, and the carpet looked very arduous.
Getting high purity precious metals, from any source, is never quick and easy. Doing it at home in your garage is not for everyone.
@@sreetips that's why you're the man.
What type of half face mask and filters are you using? I find it really hard to find something which will work for those types of aggressive acids. Also are you wearing the mask throughout the whole refining process? I just ordered my 3M 6500 half mask with some ABEK1P3 filters, but still not entirely sure how suitable they will be for refining gold and platinum.
I'm sure many of your viewers would appreciate a video in which you explain the fume hood and the filters its using to neutralise the acid fumes, as well as any PPE like the half mask and filters. You can also set up an associate Amazon account and post links to equipment used in your videos, would give you a little bit of extra income and I'm sure your subscribers would appreciate it :)
I wear 3M P95 but only during melting the metal. The acid fumes get removed by my fume hood
@@sreetips Thank you, is there any reason why the method you used to refine the platinum in this video was different to the method you used in your "Platinum Refining Practice With A Pure Platinum Coin Part 1of2
" video? In the other video you did use a reflex condenser.