I'm not sure if it is something that you would be interested in making, but a neat thing to see would be a bunch of vials of all the different transition metal solutions you see during refining next to each other for reference. Something like copper in sulfuric, copper in nitric, copper in hydrochloric, and same for the silver and gold and platinum and palladium. You can probably get nitrates and sulfates and chlorides of the platinum group metals online. Something like that would make a cool reference video for amateur/new refiners, and you could pull them up in future vids as a comparison of 'dirty' solutions to pure ones.
I love watching your stock pot refining videos because you start with an unknown mixture of materials and then have to separate each group of elements one step at a time.
Hey kev I just finished my 1st gold and silver recovery , I want to thank you so much from the bottom of my heart for posting these Educational videos I’m so glad I stumbled upon your videos now I have something to do with my life
I absolutely enjoy watching your videos, regardless of their subject matter; from fixing a fume hood and installing a vapor machine, to sorting carat scrap and refining precious metals. You're definitely one of my favorite RU-vidrs. I only wish I had enough $$$ to afford one of those "sreetips-stamped" Au bars.
Gooood evening from central Florida! Hope everyone has a great night! I could have sworn you were done with PGM refining lol. Looking forward to the series!
It started with a smile of enjoyment, but right around the 35 minute mark, the smile was definitely derived from this display bordering on masochism. Though im not sure how much pleasure you personally extract from working with the PGMs. Sisyphus of the fume hood. Love your work man, love the series. Its gonna be a wild ride.
Sreetips says I have a four-parter coming my way and I don’t have to watch the video at 12pm EST?!?!?! I’m always going to be a sreetips fan. This is just a hell of a good day for me. Haha.
After completely watching this, I ran my keep it 100 gold crystals on my channel in nitric. The solution went bright red orange, I dosed it with a couple drops of sulfuric, to rid the iron best of my knowledge from memory. The solution remained reddish, decanted it, to submerge the telluride in AR. The decant solution cementing out with a tiny copper wire "when black right away" looked that orange and was about 3g for roughly 1oz of dirty 50/50 quartz/chalcopyrite telluride. The AR solution after 72 hours with the copper wire also, never precipitated but went black. I never tested though, and the precipitate didn't smell like sulfur even when burned. What was interesting though in the pyrometallurgy test, is I smelted the same stuff at 2500 degrees, nothing melted, believing the gold I found might be iridium. In the hydrometallurgy test the same thing happened I got the orange percipient, bit the left overs that didn't solute even after AR where lots of silvery metallic particles golding their shape. The science guy with the fizzy hair explained that that ore I found might be the ultra rare band of iridium deposits from the astroid that killed the dinosaurs. Bad news is after all the science experiments, I got nitric on my hand looking at the percipient, rinsed immediately, but that didn't save me, everything quickly dropped out, and an emergency restroom visit took place shortly afterwards, And the fumes from my hands was enough to severely burn the sphincter. Lmao but really, be careful it is not a fun thing to happen.
Any plans on making more silver refining videos? I know you probably only refine Sterling as a by product of gold refining but I love watching the silver dissolve and also watching it cement out onto the copper.
FYI. In the case you didn’t see it yet. NurdRage did a nitric acid (90%) recovery, and copper recovery from copper nitrate. Might cut back a little waste. About three months ago.
If you want to check for the presence of copper, just add ammonia to the solution. The resulting copper-tetramine-complex has a vivid blue color. Much more sensitive than judging an acidic solution of copper.
Hi! Question: Why don't you use a strainer at the beggening in order to separate lil parts of copper from precious metals mud instead of spendind acid and time to disolve them? Thanks again for all the knowledge you share, all schools should have a teatcher like you!
Stannous tests can be unreliable when theres an excess of oxidizer in solution.... Im always extra cautious when refining material with unknown contents... Be careful with wastes... Dont wanna throw values out with the bathwater so to speak
another fascinating process! i still have about 2 ounces in solution and the metals keep cementing, dissolving and cementing again. still dont know what happened. but the process is very interesting. today i stir, the next day i see gold crystals covering the pins. gold cementing on copper cementing on steel...🤣 ps: i tested with stannous but i cant see anything, i just wonder why the gold cements. im still reading hokes book till i understand every process
It’s the reactivity series of metals. As long as base metals are present the gold will cement out on them just as fast as it dissolves. This will continue until all of the base metals have dissolved completely. Im quite sure it has befuddled many a novice refiner including me when I first encountered it.
Hey Master chief, when you add that nitric it seems to me that you essentially making aqua regia and putting precious metals into solution. I've found that dehydrating and lightly incinerating the material gives me the best returns from stock pots.
Thank you! I was waiting impatiently for a stock pot video! I saw your response to my question about schools not reaching out... that is rediculous! You sir are STEM! You are more fascinating than the tin foil hats creating the beginnings of the singularity with their headless robot dogs! What State are you in, if you don't mind me asking?
Hello sir, this seems to be interesting series... I am realy curious, what PGMs and how much will be there. You process lots of jewelery, so, it might be something... Not sure, if it is worth the effort, but entertaining no doubt...
Do you ever have to reduce the water volume in the stock pot? Or is that when it's time to refine it? Just wondering if you would boil the water off or let it evaporate naturally.
To bad their isn't some kinda basket u could put the copper in and let the other metals cement off it that way when time comes u can pull the basket of copper if theirs any left in it and all the other junk stays at the bottom so ya don't have to worry bout trying get all the leftover copper pieces out of it
@@sreetips just finding something not to big not to small so that the cemented metals go through but the small pieces of copper stay in I'm sure some small bits will get through but would make the task u just done a little bit easier knock a bit of time off
@@ericbeeman8717 any plastic basket, colander, strainer, whatever that is a compatible plastic would work. i'm sure some polymers will get eaten up by the chemicals in use
@@sreetips What about that massive Buchner funnel someone gave you? You can get porcelain colanders but stainless steel mesh with an epoxy coating would be perfect.
And add sodium bicarbonate to your stock pot now before adding anything more and you can drop the copper out to make copper carbonate and reduce your waste storage
Only reason I suggested that is to drop the copper out of your refining waste and a neutralizes all your acids I don't know how you clean your final waste for disposal
I was hoping to see you actually take a full stockpot and recover the acids along with the metals. Most people don't know that the Nitric, Hydrochloric and Sulfuric can be recovered. Granted in diluted form, but that can be rectified and concentrated again. Please show people the full chemistry of precious metals recycling
Any metal lower than copper in the reactivity series of metals including tungsten, mercury, silver, gold and all six sister metals in the platinum group.
Always torn between stock pot and the jeweler videos.....both are great. glad to hear you sounding better. Curious, at around 13:21 on top of the solution there appears to be some metallic looking stuff there right in the center. What is this? Or is it the lights playing tricks?
Has anyone come up with a viable way to extract rhodium using just laboratory equipment yet? Or is rhodium still only viable for multi billion dollar industrial scale refineries?
Your sludges could be anything. I know that you're very careful about going PGM>Au>Ag>Cu and, finally Fe. I'm thinking that green solution is actually Ni. A spot test with dimethyl glyoxime would be definitive. That'd make sense because your 14k and 10k stuff, along with gold filled jewelry is going to be Cu plated, then Ni plated, then Au flashed. Same with circuit boards. But yeah. Anything left after the HNO3 boils would be PGM, less Pd...
@@sreetips ok because I was yelling "wait dont use that" to the video. Lol Love your content have suggested your channel to several people! Thanks for your hard work and knowledge!
I have been watching you for a couple years now .. I would be curious if you where to incinerate that green work shirt if you would find trace of gold in it 🤔🤔
By the way you wrote that date, You are (or were) a Military man. I am forbidden from using that notation, even though it removes ALL doubt. My birthday, 6,4, 58 could be April 6, or June 4. 04 Jun 58 removes all guessing. (Yes, I AM an old "Phart!") steve
You ever flirt with the idea of melting down some of your copper to cast into a large anode of sorts to use in your stock pots? Just so your don't get little pieces of copper mixed in with your mud? You got the equipment now that you got your home forge set up.
Привіт вам з України!!! Велике Дякую вам за це відео, завжди все супер приємно дивитися і усе дуже добре поясюєте як завжди все на вищому рівні! Мільйони лайків!!! А завжди забуваю спитати що ви робите з тою міддю в ведрі, чи ви її в подальшому переплавляєте? Дякую!!!
I have lots of silver switch buttons that I've been saving do you have any step by step vids on refining stuff like that, would really appreciate and enjoy watching that I'm no chemist nor refiner please help thanks and keep up the vids
@@sreetips copper base most of the time with a silver top almost every switch made is this way, because of the small arc that occurs during current breaks, I get mine mostly from old appliances, any kind of electronics, and lots of old light switches, there small but seem to be high content and normally I've seen attached to a copper or bras base structure, I cut anything I can away, fou d your channel and been watching hoping to someday refine the silver out, also planning to start collecting old silver wear and silver plated home decoration stuff to refine for the silver thank you again for all the great informative vids
