Karat Scrap Electrolytic Refine COMPLETE
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- Опубликовано: 31 май 2024
- eBay Bar Necklace: www.ebay.com/itm/266853370413...
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eBay pure gold crystal electro refined: www.ebay.com/itm/266853367425... 
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The timelapse at the end with the electrolysis eating away at the gold bar was marvelous.
Indeed, not only does it look awesome but I've never seen that before.
It was like watching a popsicle slowly dissolve exposing amazing crystal formations under the exterior.
I always love spotting the secondary precipitations in the waste container. It's like an Easter egg.
Start to finish is always my favorite, especially when you throw something different in! Really liked seeing the direct results of the lead precipitation, it's like something you know is there but normally not nearly as pronounced! Excellent and educational, tip of the hat to you sir!
Thank you
Again thank you for another excellent video! I can't watch your beautiful work enough.
Your work is soooo fascinating. I have learned an enormous amount of practical knowledge on a subject that I simply can’t get enough of. Thank you so much for sharing Mr. Sreetips. You do such great work and your respect for the subject matter and your audience comes through in every video.
I thought this bar was even shinier than normal - very nicely done.
Now that I’ve looked at it, it does look exceptional.
Great video! Love your relaxed but enthusiastic way of talking us through the process. Wonderful how i can still keep watching gold refining video and not get bored of it!
I thought that was keif in the thumbnail being lit by the torch 😂😂
I'm so impressed with you're videos, also that you go through all the comments.
Excellent work as always.
This electrolysis stuff is very interesting.
I've been reading my new CM Hoke book this weekend. Fascinating.
I loved actually seeing the lead sulfate this time. Cheers, sir.
The next run you do with the karat scrap electrolytic Gold cell is love to see the gold from the titanium under a microscope😏👀👀👀
Always amazed at how professional you are at recovering precious metals. I am not so inclined to do this myself as i am no chemist by any means.
I think I’ve been watching your channel for about 200 years, but this is the first time I remember ever seeing lead precipitate out after sulphuric acid treatment, even though you do it at every gold refining!
That’s because I actually seen some lead solder on some of the karat scrap in this lot.
I got into making jewelry in part because of you. Of course now I can recycle the failures using you as a reference to remember all the stuff I learned.
You are always welcome. Those who have opted out are really missing out. Great rapid-fire production! Thank you Sir!👍👍🤟
That’s an amazing process sir thank you for all your hard work time and money you spend on these experiments you show us week after week year after year!
I never get tired of watching gold melt! 🔥👑🔥👈😎👍
One of my favorites. Even though you had mistakes you didn’t edit them out. Thumbs up 👍🏾
First lead precipitation from H2SO4 I've seen on your channel Sreetips. I know you always put it in just in case but this is really cool because of the material you put in, the odds of precipitating lead was virtually 100%. That's really cool to see in action.
Good seeing the various approaches. Always interesting.
Going forward I suggest you keep the DC power source out of the fume hood. Some of the acid vapours which turn up in that area will destroy electronics.
Al alternate approach would be flexible heavy duty leads (similar to what you find in jumper leads of the middle quality) to carry the current and not fight your positioning too much.
Good suggestion, thank you.
Every time you make a bar of 9999 gold I just love it, its beautiful.
Really cool experiment SReetips. Best gold purification on the 'tube!
dude the way the anode bar reveals the crystalline structure underneath the surface as the cell eats it is so cool
Thanks for taking us on these experiment journeys with you. It is obvious this is horribly inefficient, but the results look fascinating. Always something to learn.
Actually, just about all pure gold bars or coins are refined like this, only on a much larger scale.
7:26 Impressive transfer of the ice without a splash!
I didn't know that 7-Eleven sold lab equipment?!
My wife and I are truly fascinated with your work! Expecting to try our first silver cell next year!
This was very interesting to watch as always. The time lapse of the electrolytic process was awesome.
I love these videos! I love the science and chemistry behind it. Streetips, if I may make a request, it would be fantastic if you could put the reactants and products for each chemical that you use. For example, when you use the Stump-out, show the reactants and products (equation) on the screen! That would be really cool for us nerds that like that kind of stuff. Thanks for your content! :)
I’d have to hire a chemist, or learn how to do it.
Spectacular as always! Thank you Sreetips!!
I have to agree the time lapse is crazy the gold looks like it turns into a crystal
Melting in a crucible with an electric coil around it could also be spectacular in its own way. Maybe it can reach even higher temperatures, so that it cools slower, and the bottom and sides of final bar could be smoother.
Thank you for the video, I liked seeing from start to finish in one video.
Such a wonderful result 👍🏻❤️
I like this method over using the acid over and over again. Looks simpler. Less mess. Higher purity.
Only the King of Inquartation can do this in under 24 hours.
Thank you - this channel processes allot of time
Also. After watching the full jewelers carpet (1 sq yd) I again heard irritation in your breathing, you know I'm a docker, a piece of incense left burning UNDER THE HOOD while you take the parrot to the spa when you all return - the nose knows love ya but we all know its the glow of gold once it's heated up illuminations all over the room
I have reduced lung function because I ignored warnings about refining in my back yard without a fume hood. Also, blurry spots on my eye lenses due to nitric fumes
@@sreetipsthe SMB seems to have the most fizz hmm then the GLOW of melt dish
I love watching people in comments freak out over Your spilled gold bits.
Gold Fever is real. Funny, but real. 😁
That never would happen if not for the camera in my way.
Great work as always.
196th! Haven’t seen this procedure done before now. Very interesting. Roger in Pierre South Dakota
The only thing in these videos that rivals the beauty of pure gold is the vivid color of pure solutions.
It would be interesting to see the resulting crystalline structure on the "Shark's Tooth" if you allowed the bar to solidify slower, giving a larger crystal structure.
And an electrical tip for you - It is the current that is the important variable when electroplating. The higher the current, the faster the process. A lower current will give a more polished/plated finish while a higher current gives the result you have.
The current is determined by the voltage and resistance of the circuit, and the resistance is determined by the conductivity of the solution and the distance separating the electrodes.
So the standard process is to set your system up, turn current all the way down, and voltage all the way up. Then turn the current dial up to the current you want. (In your case, 9A is what you have been running at)
This will adjust the voltage as the solution changes to make sure you stay at the required current.
For refining, the opposite is true. Constant voltage is what the book calls for. Let the amps fall where they may. Variable voltage could cause other metals to deposit, if present in the electrolyte.
@@sreetips I believe voltages are specified in most texts as it is one of the primary variables that is easily measured. There is a document online that states:
"The voltage and current that must be applied to a cell for most efficient gold recovery depends on a number of factors including eluate conductivity, pH, temperature and the concentration of all the different species in solution. At SDGM a cell voltage of around 3.5V is applied for optimum gold recovery."
It then goes into more detail:
"The rate of gold deposition increases with increasing current, up to a limiting amount, at which point the maximum cell current efficiency is obtained. Above this point the current is consumed by other side reactions such as the evolution of hydrogen and the deposition of other metals such as copper, and does not contribute to further gold deposition. The required amperage is determined by the plant metallurgists and entered into Citect as a control set point. The output of the rectifiers is maintained at the set point by a control loop. The optimum amperage is somewhere in the range of 30 to 50 amps per cathode."
Note that they state "We use this voltage", but further explain "...because it is the voltage that gives us the current we want."
But this was just a FYI - if what you are doing works for you, then keep doing it. But understanding the process allows you to improve it. The document implies that 40A is their optimal current, which may allow you to speed up your process. (And I am by no means an expert in this field, I just understand electricity and trying to understand metallurgy and chemistry)
The full document can be found here: rsteyn.wordpress.com/wp-content/uploads/2010/07/electrowinning-and-smelting-basics.pdf
Thank you for the longer video 😊
Another great series thanks so much Sir 🫡
Great content. Thanks Sreetips!
It always makes me so sad seeing old silverware being destroyed. 😢
Excellent video awesome content thank you for always sharing with us six stars brother
Genius, Chief. Keep going, please.
Great Work Sreetips 🐉 Thanks for sharing with us 🙏 God Bless 🦅
Another great video!
One of the most outstanding videos to date. 👊🇺🇸🧂
It is better to create the cathode with 1000 purity graphite bar. They can be cut with diamond discs so there is no possibility of contamination of the lower alloy.
I use a flat bar and modified the ingot part so that the gravitation bar is half the height of the ingot plus a square on the bar to avoid spilling the casting.
I also suggest that you apply electroplating to the crocodile clips to prevent corrosion of the metal with rhodium or platinum plus a heat shrinkable sleeve to protect the visible area of the copper.
Also the soldering part of the clamp to copper can be insulated with silicone without sections so that corrosion does not get inside the main cables.
Another method I use is a perforated crucible and add there is the shot the graphite is never damaged in the electrolytic acid for massive electroplating
Sounds like you’ve done it a time or two. Good suggestions, thank you
I think a highly polished plate of pure chromium would make a better cathode.
A mild steel spatula is not going to scratch chromium, and the highly polished surface should aid in releasing the gold deposit.
I think reversing the polarity of the cell for like 1 second would cause all the gold to pop off. But he'd probably want to do that in a different batch (or type) of electrolyte, so that would add another step/hassle. He might also try putting the cathode in the freezer overnight, the contraction caused by lower temps might cause the gold crystals to fall off.
Baby Shark's Tooth kinda Cute!!!; )
14:50 WHOA !, pretty cool waste container transformation
You can save a lot of chemical cost and get higher purity too this way
Another awesome video
18:37 Это фиаско братан.
Gooooood evening from central Florida! Hope everyone has a great night!
Richmond Virginia Capital city
@@riverfrance5676 👋 Howdy!
* whips tail *
Goooood evening
Do you have a Commercial fume hood or is it a self built one?
Do you have any type of scrubber on the fume extraction to deal with the nitrous oxide fumes?
I bought it on eBay. No scrubber. The fumes are nitrogen dioxide.
Awesome stuff sreetips 👍
Going into Denver tomorrow to get nitric acid, and the other stuff I need to refine my gold filled scrap. Summer of fun on the way.
Be sure to do reactions in a fume hood. I ignored this and did reactions in my back yard. The fumes will get in your lungs, hair, clothes, eyes and skin. So that now I suffer reduced lung function and blurry spots on my eyes from the nitric fumes. No way to safely do these reactions without a fume hood. The concentrated red gas (nitrogen dioxide) forms nitric acid in contact with moist body tissue.
@sreetips thank you for the info. Will be extremely careful.
@sreetips I may get a full body suit, or pajamas from the thrift store. Hat, scarf, mask and goggles. And after, just put the stuff in a bag and throw it out. And not even breath at all while I'm near it.
I can't believe you melted it. I thought you were doing all this to keep it in crystal form. It's worth more than bar form.
Same
I understand you need to be quick to pour the gold when molten but maybe being more gentle on pouring can improve the overall aspect of the finished bar? I mean to avoid those blobs and holes. Or is it an unavoidable graphite mold problem?
The key to a perfect bar is to get the mold real hot.
So when that 14k clip melted into the the .999 fine gold, did it not contaminate the golds purity when remelted it into the new adenoid bar?
Yes
This is sooooo coooool! 😮😮😮
I have nothing negative to give, we have opposition in all things. When you do good you will draw some negative. Keep up the good work please 😃
Mr. Sreetips in what situation do you use the “specially prepared” filters? Thanks for the fascinating content!
Gold filled
Another great video! Hey, after you added the Stomp and let the gold precipitate out, I noticed some specs floating at the top. What is that floating stuff? Is it lead?
No, those were pieces of pure gold attached to tiny bubbles. I added that to my off-line savings account (temp waste container).
Awesome video nice gold bar and sharks tooth thanks for sharing sreetips
First 👍's up sreetips thank you for sharing 🤗
Hey Sreetips, would this work in a titanium bowl?
It certainly is a great time to be a gold refiner.
The right business, with the right instrument, at the right time. Opportunity like this may not happen again for another thousand years.
14:57 bonus precipitation from waste solution.
Love the content but not gonna lie I feel a bit cheated that's a 3/4 videos crammed into one but also appreciate the work and effort to produce content quick enough that it's a steady stream all these process takes time which makes content hard so thank you to you and Mrs sreetips
Producing these videos takes a lot out of me. I wish I would have chosen something simple.
Question: in the fail attempt of the 14k Anode hanger does the amount of other metals comprising the 14k included in the anode adversely affect the purity of gold plated onto the cathode.
No
Given your amazing expertise in precious metal chemistry, have you given any thought to attempting to create some of the other gold mixes like rose or purple? Excellent video as always.
I’m a refiner, making gold alloys is going in the wrong direction.
Another video great!.😊
It seems there's a bead of solidified flux on the end of the bar?
I wondered that too.
Correct
What happened to the silver from the first 14k hook that melted into the anode? In the waste electrolyte solution?
Yes
Would painting some insulation on the back and sides of the cathode help to grow the gold only in one spot?
Or would a pure gold cathode work ?
I’ve used pure gold cathode, works beautifully. I’d hesitate to paint anything on the cathode.
Enjoyed!
Thank you
do you have any kind of filter trap on the fume hood to capture or keep the NO2 gas from escaping to the atmosphere?
No
You could almost hear the collective “OOHHHHH” of the viewers when that gold sponge splashed out of the funnel😅
Suggestion for Sreetips: Find a worn out cheap bar mold and grind a hook shaped channel at one end with a dremel tool. Pour the bar and hook as one flat piece. Once cooled, twist the hook 90deg to hook onto the beaker.
That wouldn’t have happened if that pesky camera wasn’t in my way (all the time).
Made an anode mold, good suggestion.
Does the wet gold get contaminated at all with graphite from the mold ? Does three nines sell for different than four nines?
No contamination from the graphite as long as it’s clean. Three nines is industry standard for pure gold. So the fourth nine is totally unnecessary unless needed for some specific purpose such as a test standard. The only reason I did it is for the show, and demonstrate that I can, and produce a new and interesting video for my channel.
Consider just welding the gold hook to the anode bar with another piece of gold? Ive seen you make gold repairs, so im confident you have the skill to do that. 👌🏼
Good job ❤❤❤
What’s the reason for not pouring the new gold over the shark tooth sitting in the mold where it was originally formed?
Didn’t think of it.
@@sreetips fair enough. Was wondering if there was a reason that didn’t occur to me.
The anode produced some sludge into the electrolyte while dissolving. Did you filter the electrolyte to see what that was?
Not yet, I’ll do it before its next use.
What was the little blemish on the edge of the final ingot? Looked like a bead or something.
Flux
Borax
Your electrolyte seemed more reddish after you were done. Is that just lighting or did something change?
Heat cause it to darken like that. It turns from orange/red to more yellow as it cools.
Curious - how do you know it's 4x9s and doesn't have, eg, titanium impurities either absorbed or from scraping off the cathode?
There’s going to be some titanium from scraping. But parts per million only. Not enough to report in an assay.
Where does the stump out go when you do the precipitation, does it get washed away with the follow up boils and rinses before the melt?
Yes I think you're right - the sodium metabisulfite dissolves in the solution, then gets washed away during the various boils/rinses/pour-offs. Some of it off-gasses as sulfur dioxide gas during the bubbling as the gold is precipitating.
Got this from “Butcher” on the goldrefiningforum.com
Sodium metabisulfite in gold solution:
Na2S2O5 + H2O --> 2 NaHSO3
Notice we actually make sodium bisulfite
Then
2 AuCl3 + 3 NaHSO3 + 3 H2O --> 2 AU + 6HCL + 3 NaHSO4
Smart way to do that😀🔥
I have a question - have You tried a centrifuge to make the metal settle quicker? or is it completely impossible to make one reliable enough to try it?
I have a centrifuge, but I rarely use it.
May ask what that orange circle is in the finished product?
Borax
What can’t this man grow??
So is the gold cell process cheaper as it’s less chemicals and steps than the aqua regia and stump out? Or is it just more pure?
It takes longer and it’s more pure. But I like the gold that it produces. This is the process that big refiners use to get four nines gold. The anode should first be refined with AR to get the lead out.
Looks like the same refining of the other bars. I mean it's not much shinier! Do you think it makes any difference going through that process?
Only to you, the viewer, if you like seeing the gold refined electrolytically. Three nines is industry standard for pure gold. So the fourth nine is totally unnecessary unless needed for some specific purpose such as a test standard. The only reason I did it is for the show. To demonstrate that I can, and produce a new and interesting video for my channel.
Would the electrolytic process leave the lead behind as it would other impurities? Then you would not have to do the initial refining?
Not sure, so due to lack of experience, and for insurance, best to refine it with Aqua Regia first to get the lead out.
Does unfiltered ice affect anything in solution? I'm mainly asking since there are elements in the icy center.
Parts per million only
@@sreetips Yeah. That makes sense.
Does any of the titanium from the cathode get scraped off with the gold? Are you worried about contamination there?
Maybe parts per million. Not worried.