Palladium Recovery From Silver Cell Slimes pt1

Part 2: • Palladium Recovery Fro...
Part 3: • Palladium Recovery Fro...

[@doittoday1]

Seldom do I watch an entire video that’s over an hour but your great nature and the care with which you do these procedures makes me stay tuned. Your videos are never boring because it’s obvious you have the desire to teach. I thank you for your enthusiasm and please keep them coming.

[@sreetips]

Thank you for your comment.

[@patpawlowski7635]

Thanks sreetips for putting so much time into these videos for us. I really look forward to all of them every week and have a lot of fun watching he process and your operation.

[@andromeda1892]

this is the number one refining channel on you tube!! you have upped your game sir. thank you for sharing your knowledge and putting the effort in. i bet it can get overwhelming having to film your work. cheers.

[@MrDannyd9]

30:40 The same happens with gold. It is because the alloy metal creates interstitial space between the precious metal particles. Aqua Regia does its thing because it removes the oxidizes from the metal (with HCl); however, the alloy metal doesn’t allow the oxide to form, so the nitric can attack the precious metals without help from another acid.

[@judithyoungquist8409]

Absolutely enthralled by your vids! I’m going to go back to the beginning and watch from the beginning! Thank you so much for sharing with us!

[@sreetips]

I've got several more coming soon. I finally got some pure platinum metal last night. The video is uploading as I write this. I'm literally making it up as I go, and you can tell because I make a few wrong turns. Thank you.

[@opiewanau6303]

Thank you for doing another very Informative Video! The detail and oratory are great. Again, Thank You.

[@catch22frubert]

Hey Sreetips! I just wanted to thank you for doing some refining of the platinum group metals. Not many people have done work with the platinum group, so it's much appreciated that you have done these for us. I'm particularly interested in the platinum group from a chemistry standpoint, because of their many cool abilities and uses in other important reactions as a catalist. It's also very cool that most don't oxidize and are stable for so long. So again, thanks for the awesome videos! I'll be patiently waiting for your next videos.

[@dbaca148]

New to the refining process. Been watching all of Streetip's vids. Just ordered my first jug of nitric. So much to learn. Great lessons!

[@sirfartsalot1328]

Take it slow. If you can, get a copy of "refining precious metals wastes" by C.M. Hoke and read it over a few times. Take baby steps, have good ventilation, and be patient. Practice good personal safety because this hobby can kill you if you're not careful. Also, there are Facebook groups that are strictly focused on this hobby. They are a wealth of knowledge as well as the forums. Studying up before doing anything will help you understand what's happening before you start using acids and other hazardous materials.

[@servettimur9040]

Thanks for this nice hands-on and real and applicable video and information at all stages. I will highly recommend it to my students

[@archeonist]

Yep, it has been said already, this is the nr.1 refining series. Normally I don't wach video's longer than ten minutes but every minute here was informative! Thanks for taken the effort in making these video's!

[@scottbaehren7920]

Most instructive videos I've seen. They are fascinating! I would love to learn how to do all this stuff. Thank you so much sreetips for the time and effort.

[@keithstreeter9054]

I do look forward to watching these videos, I’m making my way through every one! Thank you!

[@julianmarsh7993]

AS you know I worked in Labs, none of us ever fluted a filter paper that well........Great video's I watch each one at least twice.......Another gold placer or even a pound of gold concentrate ore would be good. Thanks God bless you man.

[@XavierAncarno]

Can’t wait for the next Palladium video. Thanks for educating me.

[@shinhayata7342]

Just watched the Palladium videos, excellent job 👍👍

[@none.892]

Awesome video, as always! I can't wait for your upcoming videos. They are sure to be a blast!

[@agnesh24agawane]

You are doing really great job Sir. Spreading knowledge that to of a processes which are established by trial and error methods and are a intellectual property. Great Job.

[@SK-yw5ih]

I love adding a little SMBV (Sreetips-Made Baller Videos) in my youtube solution before I settle overnight. Sreetips man, you are my favorite youtuber at the moment. Your depth of knowledge and content is so profound, and your presentation is extremely well done. While I'd love to try my hand at refining, it is so out of my comfort zone, I'm happy just watching a pro do it, because I simply don't have the nerves to handle glass beakers full of boiling toxic liquid acid solutions worth 1/10th of what you do. You've got nerves of PTFE!

[@snoozin99]

I agree with the others, even though I seen this video last year, its' still the best content for refining on youtube! Love your work and thoroughness in all your videos, and I always learn something new I didn't know or something I missed the first time through :) Have a great day and we are blessed to watch you work P:)!

[@solace6717]

I love the detailed explanations, this is probably the most detailed videos I have come across on KZbin on hot to extract noble metals, I love the whole explanations and process followed in separating the noble metals from each other, thank you for the time and effort.

[@markhirschmann9967]

Bit late to the party ,but having worked in a platinum refinery ,one way of dealing with the filters was to calcine them ,i.e incinerate them in a silica tray at high temperature just leaving the solids behind .Other than that I enjoyed your video

[@russellpindar7717]

Another cracking video. Well put together and well edited. I echo what others have said, I like the longer, "full story" videos.

[@wadehampton1534]

Wonderful video, sreetips, and very informative. I'm glad I watched this, because I'm going to be setting up a silver cell as my entry into refining precious metals. I'm excited to see the palladium salts that came out of the slimes, and the little gold bead, fascinating. I'm off to watch PT. 2 and see how you turn that yellow powder into palladium!

[@keithstreeter9054]

I personally don’t mind if the video is long. The information that you’re presenting is invaluable! I hope that you never take these down, at least not ‘till I have taken all of the notes that I need to take!

[@hillbillyaquatic5802]

Love your video keep on keeping on I lean more and more every time

[@isaacclark9825]

Rolling on the floor laughing. The narrator says "adding sugar slowly to avoid boiling over", but the subtitles say deliberately provoking a boil over just to show off.

[@sreetips]

Either way, it’s a mighty cool reaction to watch

[@misoman]

Thank you for the stannous test! I missed it! Yes, I have no life :) Interesting as always, thank you!

[@krotos2009]

Love that sugar reaction with sodium hydroxide haha I cant wait to try it for my silver.

[@allenheilig3737]

thank you sir you've explained a lot to me I've been getting pretty good results with my silver and gold stuff once again thank you sir

[@sreetips]

Part three of my latest silver refining series will be out soon. I'll make a small silver cell in that video. Thank you.

[@paulpowell8207]

Another night you have kept me up watching, love your videos even though I have watched enough to know what your next step is, I have to watch til the end. It's just about 1am, good night and well done again

[@derekfuller1599]

I've never really had an interest in this type of thing but since I found your channel I have watched many hours of your content and I really enjoy it. I'm learning so much about a subject that I will most likely never have a use for :). Thank you for such rich entertainment.

[@chieunguyen1586]

Rất bổ ích! Cảm ơn ông đã rất chân tình chia xẻ kiến thức cho mọi người! Tôi mong muốn được học thêm nhiều hơn nữa từ ông!

[@lion9419]

Sir it was great sir I love to watch ur videos great great work may Allah bless u peace and harmony love u sir

[@Gday_Its_Will]

i love the long videos thank you mate

[@shaneyork300]

I started watching the paladium refining videos and I wanted to see where the paladium originated!! Pretty dang good to get what I am guessing to be well over a thousand dollars after the paladium refine out of the silver cell filters!! Question:: I know you like to put myths about ewaste to the test, I'm would like to know if you'd consider doing an mlcc refine???? I laughed a little when I heard this because of the education I've learned by watching your vids! But I've heard from several ewaste KZbinrs (NOT REFINERS) that the older or vintage mlcc's have 80% silver and 20% paladium in them!! I immediately thought of you and how you'd probably like to BUST THAT MYTH!!!! 👍👍👍👍 Have a GREAT Day Sreetips!!!

[@intothecalm420]

This video was SO much better than the program my wife was watching. Thanks!

[@pri3stburgess168]

Your a legend. Basic setup but professional outcome

[@sreetips]

Thank you!

[@coltenwatkins7188]

Thank you Sreetips. These videos are very fun to watch and learn with. Personally I like these long ones. Thanks again.

[@bobspistolsandpaydirt8607]

Great video.... very detailed...

[@mikeconnery4652]

It's the molecules, the molecules are so few that they are just released when the silver is desolved. This will also happen with your silver incortation of gold.

[@mikeconnery4652]

Inquartation?

[@frankzahn7773]

You could have saved a lot of nitric by running the slug through a sieve and wash it before adding the nitric acid. Then add the silver to the next silver cell. Save some money.

[@readoryx373]

Beginner here, will ask anyway: could the stubborn black/silver residues been made more extractable by roasting at 600f for 45 minutes in between refinings, to oxidize stubborn bonds?

[@sreetips]

Possibly

[@bbppbb11]

Love love love these vids!!!!

[@hedgehog7562]

You are truly amazing, Wow! Thank you for sharing your knowledge with the world. The cups , plastic funnels, flasks, and bowls are easy. Who is your supplier of the chemicals?Great job, Please reply.

[@sreetips]

I get most of my supplies and chems from eBay.

[@almotrfe]

Great work fantastic video ,keep it on

[@qtmeto]

Hello, I have palladium in nitric acid, could you tell me how to precipitate it with oxalic acid?

[@Enjoymentboy]

Excellent video, as always. I've thoroughly enjoyed the whole process but I'm left with a question: How many lbs of silver would you guess you've run through those filter baskets to get this recovery?

[@sreetips]

I can't remember the number of filters. Let's say twelve. Each filter had at least 1.5 kilos of cement silver run through it. So I'd estimate about (12 * 1.5 = 18 kilos). 18 kilos divided by 453 grams = about 40 pounds of silver - estimated.

[@FollowMe2aMillion]

Another great video friend.

[@GQSmooth00]

Great video as always Sreetips. One question, is there a benefit to melting the cement silver into shot for the silver cell versus using the silver power in the anoded basket on it's own?

[@sreetips]

I tried adding the powdered silver once and it created a problem. It was a long time ago. I think it clogged the filter.

[@michael636336]

Also Cl and S are next to each other on the periodic table. That explains why Au and and other PM's form complex equally well with Cl- and S-2.

[@dylandownright8844]

What do you use to clean your glassware? Bon ami? Been using clr with an isopropyl alcohol rinse on my glassware with a final distilled water rinse, but my drop beakers still trap gold powder on the walls.

[@sreetips]

If I get gold stuck to inside of a beaker I add about 10 or 15ml hydrochloric acid, cover on low heat, then add a few drops of nitric acid. The fumes inside the covered beaker will dissolve any gold clinging to the insides of the beaker. Then I just rinse it out into my stock pot after it cools. I use alconox glassware cleaner with a scotch brite sponge in tap water, then give it a quick rinse with distilled water.

[@johannesdesloper8434]

I didn't watch it 100% but what I saw was a great video. Recently I made a video myself and was confronted with how hard it actually is to make something decent :D. Never thought of the almost inevitable editing studio.

[@emanOsamam]

Thanks for all your information

[@quinnmccormick]

When you do the surgar. Use a wider opening 0n the fask. For more control.

[@raymondcote6669]

Outstanding video!

[@anon0054]

Fantastic video! Amazing the amount of other metals in the silverware. Do you think this was done intentionally or was the silver just not purified when making the silverware?

[@sreetips]

Silver is a carrier of platinum group metals and gold, especially older pieces of silver.

[@rodola647]

sreetips interesting

[@davidcrandall1548]

I would like to see the next video on getting the Pd out of that yellow filter. Can't find it.

[@santababy1952]

I'd like to see a video of how you process the filters. It is so clear this refining takes so much time. I hope you count that into the price of the things you sell on eBay. You are an awesome teacher. Is this what your job is? Your videos are so much fun. Have you ever written a book on how to do this? I am retired and have a lot of time on my hands and I think I could really get into this! Like I said, you are an awesome teacher and I have already learned so much. I even guess how much gold in gram weight you had.

[@sreetips]

Laura, thank you. I'm a retired U.S Navy Engineer. Refining is my hobby. But I do work at a jewelry repair shop setting diamonds and replacing watch batteries a few hours per month.

[@santababy1952]

@@sreetips My father was an engineer and got his start in the US Navy long before your time. He was also a metallurgist earning his masters in that. He worked for Western Electric and seriously was a jack of so many trades. He, like you could invent many ways to make an apparatus he needed rather than go and buy a new thing that did the same thing which is why I definitely believe he would have been quite at home refining precious metals. I have always been a rock hound though professionally I was a nurse until an injury to my back brought on early retirement. I would love to apprentice along someone like you who has the patience and knowledge to go through so many steps and consume so much time to achieve such small quantities of precious metals, however I think by the time you finish making all your pure silver crystals you may be able to have a full brick of fine silver! As for selling it, I agree, the price is so manipulated for precious metals. So I decided to buy myself some silver and a few gold coins. I did some reading and have heard it said that you should have 20-25% of your assets in precious metals so indeed you are setting yourself up well for your future income stability. I love watching you work and though I know little about chemistry, I am learning good bit. Thanks for your ability to make it all so interesting.

[@cookingwithh2o]

I love watching you videos, thanks for posting them. But one question, what is the name of the rod that you to stir the solutions? I want to order one online, but don't know the name of it. I hope to really hear back from you soon, I have so many other questions as well. But one at a time.

[@sreetips]

Glass stirring rod

[@michael636336]

On your stockpot. Use Na2CO3 to precipate metal ions. CO3's are less expensive and less soluble than OH's.

[@captainjerk]

Very cool video! I like the longer ones. Many steps, and several different procedures represented here. You go alotta work ahead of you! So when you make the silver st of chess pieces, are you gonna make a gold set as well? Thanx again buddy!

[@sreetips]

I don't know yet. I've thought about plating one side. Making low karat gold on one side; 25% gold alloyed with 75% Sterling silver. Adding sapphires to each piece on one side and rubys on the other. Adding pure gold bands to one side.

[@captainjerk]

That sounds gorgeous! Can't wait to see what you come up with! BTW, if it's not a breach of protocol, what do you do for a living? Are you a jeweler?

[@OwlTech333]

Hi! Thanks for the video! 6:34 I don't think the green colour of a nitric solution indicates palladium presence . In my experience palladium tends to colour the nitric solution brown - from "tea" to "cola" (depending on the concentration). Nickel is more likely to be the culprit of the green colour, but I could be wrong, Take care!

[@sreetips]

All the silver in this video was cemented on copper or silver chloride conversion. Either way there is no way for nickel to get into the silver. Nickel is higher up in the list than copper so it won't cement out on copper when the silver is being cemented. Nickel dissolved in nitric is green. Palladium dissolved in nitric with sterling silver will appear green due to the copper in solution.

[@OwlTech333]

I guess you could be right then

[@Qwertypp10]

Great video :) Why are you using hydrochloric acid to precipitate silver chloride, instead of for example sodium chloride?

[@sreetips]

Because it's cheap and sitting in a bottle right there for me to use. Dissolving salt in water takes another step. Plus I learned it that way and it works nicely for me.

[@T-rock_chr0n1c]

I was curious do you keep your test stripes and refine them after the staniscloride tests?

[@sreetips]

No

[@matthewmoffatt9934]

one more question.. why do you refine the silver before you run it through the silver cell? wouldn't you lose most of the other precious metals in the first refining process. I know it would pollute the electrolyte with copper sooner but wouldn't it save a little more platinum at least?

[@sreetips]

No, it all gets cemented onto the copper. Then it forms the slimes in the silver cell. There is very little platinum in the silver.

[@ElTurbinado]

I have a question; could you have put the undissolved silver at the beginning back in the silver cell to save some nitric acid?

[@sreetips]

I've never tried that but I suppose that it could be rinsed with distilled water and then put into the anode basket in the silver cell. Not a bad suggestion. I may give it a try the next time I process my silver cell filters. Thank you.

[@AppliedCryogenics]

It was satisfying to see the whiteness of those boiled filters.

[@raymondcote6669]

Your attention to detail is commendable But on that note. You really need a better stir stick. Round snd thin doesn’t cut it Maybe a paint stirrer, then discard it

[@GarysBBQSupplies]

Hi Sreetips. Just curious why you don't use a stir bar to help dissolve the slimes to prevent a runaway reaction? Thanks for the great vids. I have learned a LOT!

[@sreetips]

I guess I didn't think about it.

[@Shad0wBoxxer]

Everything he does is a experiment and he is learning as he goes, i watched it and didn’t even think about it and thats after watching his whole stock pot series!

[@UFObuilder]

Excellent work I really enjoy this

[@sreetips]

Thank you

[@abockrath]

I've just watched a five year old video and I'll be interested to see if you reply. Does the silver come out more or less pure from the silver chloride method of recovery versus using copper to cement the silver out of solution?

[@sreetips]

If properly rinsed, silver chloride conversion can produce three nines silver.

[@shaneyork300]

Excellent, excellent, excellent!!!!👍👍👍👍

[@hibbanimran2010]

Mdakbal

[@hibbanimran2010]

8448519060

[@1hardman161]

Nitric/water hot soak i filtered off. Stannous tested its real green. If I put DMG in then torch to burn the precip, then can melt it to a button. The left over nitric/water liquid, put copper pipe in to drop my silver? Do I denox the nitric/water, but not add HCl, just water?

[@sreetips]

I don't think that burning the precip will work.

[@1hardman161]

@@sreetips Ok I meant calcine to burn off nitric then borax melt it. I was told since I cant get DMG that I could use cyanide[that I have], it will be a blue precip, filter, burn[calcine] then torch. Also the zinc precip from AR dry was 70, pulled off the filters I put 56gm into hot HCl 24hr, then filter, rinse real good, then put it into hot nitric/water 24hr, then filter rinse and dry. I now have 36gm of dry tan[sponge?]The zinc would have precipitated all metals in the AR, then the HCl and nitric/water soak's would have removed the metals I dont want leaving me with gold&pgm's, correct?

[@mikeconnery4652]

Excellent video

[@jeffreyroeth2784]

I have seen you convert silver nitrate to cement silver with copper and in this video into silver chloride then to silver oxide and finally with sugar. Copper seems to create less waste rinse etc. Does Silver chloride method yield the same as copper method? Watching your videos always teaches me a little bit more each time. Recently my sterling dissolves in nitric has been yielding lots of purple sediment and green solutions. I am hoping this means I have palladium and gold yet to recover.

[@sreetips]

Jeffery, silver chloride conversion does create more waste and potential for loss of metal via incomplete conversion. I prefer cementing on copper because it gets the silver, gold (if any) and PGMs (if any). Then I run it through the silver cell to get pure silver Crystal. The slimes in the anode filter will have the other precious metals that can be recovered,

[@nickmiller3796]

Amazing as usual. I am curious if you also go after the lesser metals like copper from these solutions?

[@sreetips]

I just bought 20 pounds of copper at a yardsale for $10 - it's so cheap and readily available that buying is easier than trying to recover it.

[@thekwoods7234]

Yep agree there however on large scale e waste I think they do recover copper 90 per of recovery is copper but once in solution im not sure the cost effective way to retrieve

[@lisakruckeberg-sanchez9537]

@@thekwoods7234 cody's lab youtube has a video on recovering copper. streetips and cody are my go to for info on refining.

[@erbalumkan369]

silver jewelry may be coated in a thin layer of rhodium. Rhodium does not dissolve in AR. So you might have some rhodium in that black residue?

[@danielescamilla9926]

thank you i ve learned a lot but i still have a question (in your video you mentioned that the solution after the paladium was precipitated bluish silver-copper and that you will precipitate later the copper but you didn't) are you gonna precipitated the copper from the solution? or do you have another video on this matter? i'll apreciate you answer, thank you...

[@sreetips]

Please see my latest video uploaded Friday May first 2020

[@sreetips]

In that video I show the copper cementing out on iron

[@davidtwining4059]

Those slimes are like money in the bank.

[@krzysztofkocierba8537]

Thanks Streetips, excellent guide. But tell me what you do with platinum whih was soluted with silver? Did you pour it into the sewage? It is better to pour leftovers into the stock pot and add some thin copper wire, which after a dozen or so days reduces the residual precious metal concentrated it to next refining. About silver reduction: 49:39 - left beaker the suspension is blue - it still contains copper. It is better to rinse thoroughly, until the test with ammonia does not give a blue reaction. You can have abuot 99.9% purity without again refining.

[@sreetips]

I add the platinum solutions to my stock pot. Please see my stock pot refining series. It's possible to get high purity silver the way you described. But the only way to be sure is to run it through the silver cell.

[@krzysztofkocierba8537]

In my job I use chemical refining silver, but ever before reduction I am testing silver chloride with ammonia for the presence of copper and nickel. It significantly reduces costs and time. Furthermore, I think that your Bach is great. I also remember him from childhood and I do not know what song it is. Probably a dance with some kind of suite, but ...

[@sreetips]

Rinsing the silver chloride until the ammonia test is clear from blue color produces lots of waste. But it does make some pure silver powder. What about the palladium? It's worth about 70 times more by weight than the silver. Silver is a carrier of palladium and traces of gold and platinum.

[@krzysztofkocierba8537]

You are right. Really big stockpot is a solution.;)

[@gomezgomez9156]

I’m kinda glad the accidental boil over happened without it costing a run I always wondered what it looked like, this way we got to see it but not in catastrophe

[@ut000bs]

For those who might be wondering, the market ask price for gold today is $1,573.90 oz. For palladium it's _$2,502.00._

[@PrometheusZandski]

Just a fantastic process to watch. I was wondering why you didn't remove the slimes from the filters with hot water, then dry and weigh them. Then do a test run on a small amount. This would have allowed you to calculate concentrations of different precious metals, and better estimate the amount of Nitric and DMG needed.

[@sreetips]

I just didn’t think of it

[@PrometheusZandski]

@@sreetips You are a busy guy, you can't think of everything. Love your videos. Makes me feel like a real chemist.

[@SURFEAMORETERNO]

Thank you sreetips.

[@matthewmoffatt9934]

Hi there; I have enjoyed your videos for quite a while now and thank you. I do have 2 questions about this video. first why did you not attempt to precipitate the platinum with sodium chloride, and then precipitate the palladium with chlorine? and second, isn't palladium salt extremely soluble in water? thanks for your time! matt.

[@sreetips]

I didn't try to precipitate the Pt because there was very little to get in the first place, trace amounts only. DMG makes palladium easy and it get nearly 100% of the metal as the bright yellow precipitate. It's easy to filter out and It's easy to wash with distilled water because it does not dissolve in water.

[@matthewmoffatt9934]

Thank you for your quick response! is it the brick red palladium salt that is soluble in water? I apologize, I am new to refining palladium and there is several ways to do it, I just would like to know the best way. I am assuming that unless there is more than trace amounts of platinum definitely do the drop with DMG.thanks so much for your time and I look forward to your upcoming videos.regardsMatt

[@matthewmoffatt9934]

and I meant ammonium chloride not sodium chloride in my first message lol

[@davidbarron107]

hello sreetips. what size whatman filter would you recommend for filtering. what would be an all round filter. could you recommend a few filter sizes for me please. ill will be refining gold and silver.thanks in advance..love your videos. so informative.your reason I got into this

[@sreetips]

I use #1 fast flow, #2 medium flow, or #3 slow flow. #2 is a good all-around general use filter. The size will depend on how wide your funnel is. I use 12.5cm when filtering silver solutions. I like 7cm and 9cm when filtering gold solutions.

[@davidbarron107]

thanks so much for the quick reply..thanks from Ireland

[@jasonjack5915]

I know I'm late commenting here I use other silver refining methods than the silver cell, I wonder what would happen if you incinerated the filters, would yield be positively or negatively affected?

[@sreetips]

The last step before adding to the anode basket was incineration. So I don't think it would be good to incinerate the filters again.

[@ollim619]

Nice work! Does anybody think about rhodium as PM involved? Because over here in germany lots of silver-rings and -necklaces are rhodinated to prevent from tarnishing....should appear as a black undisolvable powder with high melting point.

[@sreetips]

There is probably some rhodium in my filters and in my stock pot.

[@mikeconnery4652]

Fantastic video

[@patrickochoa617]

Would placing your used Dacron filters in an Ultrasonic cleaner be better?

[@sreetips]

Not sure

[@bhargavadmar5032]

Which filter is best for all recovery work like sliver,gold & palladium

[@sreetips]

I like #2, 202, or medium flow for most filtering that I do. Ashless is good if melting the metal while it’s still in the filter. #3, 103, or slow flow for filtering gold solutions with very fine sediment.

[@Jewelrymaker]

You should start a patreon. I would definitely support you!

[@pushpatp9881]

What material is anode bags/basket made of can u please giveinformation about anode bag material plus supportings

[@sreetips]

I’m using Desron vacuum filter bags from Ace Hardware.

[@mnap89]

What happend with the platinum that was in the main solution? You extracted Pd with DMG, then Ag with Hcl and poured all remaining solution to waste bucket or stock pot for futher Pt recovery? Looking forward to see Pd recovery :)

[@sreetips]

Platinum was in trace amounts only. There was a touch of color in the solution after extracting the gold. I think that was about it. The stannous test of the silver solution was null. So little of it that there was not enough to try and recover.

[@quinnmccormick]

Sometimes I think leaving the spoon or the Stir stick in the boiling liquid can keep it from boiling over according to food

[@TechneMoira]

I was wondering... you extracted several precious metals, among which platinum and gold from silver sludge. Can we assume that silver ALWAYS contains a little bit of gold, since gold will readily form an alloy with silver? As for the platinum forming an "alloy" with silver, I've read that Platinum can bind with Chloride in a specific chemical reaction to form Pt(NH3)2Cl2. When Silver Chloride and a small amount of Nitrates is added (in the form of Nitric acid), a complex chemical reaction seems to occur where there is a transitional form of platinum and silver. My chemistry knowledge is buried deeply, but I suppose it's a kind of Redox reaction. Some of the byproducts of this reaction seems to be compounds with the chemical names cis-[pt(NH3)2(H2o)2](No3)2 and AgCl. That's as far as I can take it. Since I'm not a professional chemist, nor a professor in Chemistry, I'll leave it to people far smarter than me to explain the chemistry behind these reactions :) It seems the Platinum complex described above, is something used in new cancer treatments by the way. Anyway, thanks for the video, as always very entertaining and instructive.

[@sreetips]

Silver is a known carrier of platinum group metals and gold. Especially older silver pieces made back in the day when reagents weren't as good as they are today. I bought an old silver cup weighed 750 grams, not marked, nobody wanted it so I dissolved in nitric and got over a gram of gold from that one item.

[@thekwoods7234]

@@sreetips minus the cost can this be scaled to a profitable business model? Or not for the average person I ask as a scrapper who has hoarded e waste and love the thought of processing but even the I.c chips seems to be where chems could cost more then recovery any ideas or tips would be amazing be safe and God bless

[@drinventions9742]

Ok,,rather than asking on the forum,, maybe you know,,why is it that when adding HCL to form silver chloride that it forms a yellowish color on top at start? I’ve always wondered about that,, then upon stirring it go’s away and the chloride is formed an solution turns blue,, which I know the blue is copper,, Could it be the free chlorine just before chloride conversion? Great video Kadriver ... (Darinventions)

[@sreetips]

I'm not sure about that. If you find out why then please post the answer. Thank you.

[@jb0008]

Do you refine for other people? Say for a percentage, I have a very large amount of rhodium and an needing help with refining.

[@sreetips]

This is my hobby. I only work on my own material.

[@ajanisabir8324]

Where did you buy the silver cell slimes

[@johnjjrjr]

Steetips what do you make of a red solution after a nitric acid bath with military grade pins and other pins with heat for several hours. When diluted with distilled water it turns pinkish. The red solids settle on the bottom after a hour or two. Thanks J

[@sreetips]

Sounds like colloidal gold to me.

[@johnjjrjr]

@@sreetips Thanks do I need to worry about getting rid of that red or will all be well in the end. Could you tell me what caused it?

[@quinnmccormick]

😁what of you put some of your concoctions under vacuum?