I don't know if this would be intetesting for anyone else, but I would love it if you demonstrated the weight of the combined liquid (without gold in solution) and solution with disolved gold. I know it is a moot situation but I feel it would be a neat comparison. Chemistry is cool! Science rules. And you are the youtube King of alchemy ❣
Had the same thought but different concept. Gold bubble vs conventional bubble. Can I do it and will in it fall faster? Can I recover the gold with a method I made? Basically a bubble reactor. Essentially an air drying process. We will see.
I’ve done this experiment. I weighed the gold solution and the same volume of plain water in the same container. I did it in the video with “Wohlwill” in the title.
@@spokehedz yes atoms are atoms and gold atoms are far more dense than any of the other atoms that you're going to encounter in this process, mainly, oxygen, hydrogen, chlorine, nitrogen, sulphur, copper, silver and small amounts of various other elements. Not that these atoms aren't generally found in elemental form in solution but rather as ions and complex molecules. So yes, the gold bearing solution will be significantly heavier than the same solution minus the gold.
Wow seeing the different densities of the liquids after the first filter was really cool. The gold solution is always really interesting as it gets so concentrated too. That red color is incredible.
Wow! Great vid. Different dissolving, different precipitations……like a greatest hits compilation. Been going back through your previous stuff and this particular one really stands out. Thanks for putting in all the work!
Precipitations are a tricky thing, because if it happens too fast, inclutions can be formed. There are a few ways to mitigate this... - reduce the concentration - increase the temperature (the resulting crystals tend to "rearrange" in the forming process to give more uniform / less irregular shapes) - slow down the feedrate (gives the mixture time to reach equilibriium) - use seed-crystals as a starting point to form the bulk (aka pieces of condensed matter) My suggestions for the SMB reduction step: dissolve and filter your SMB (maybe hot saturate), do the precipitation at around 50-60° C (sorry, I'm metric ;) ), use a magnetic stirrer and add the SMB solution first slow - then faster with your separatory contraption... this should give you a more uniform product and controlled reaction. For the reduction with the iron salt... a magnetic stirrer and elevated temperature should do. Maybe adding a 1/10 of the reduction solution first (to produce seed-crystals) and after a couple of minutes the rest... For washing the precipitated gold.... 2 mL of your hydrochloric acid in 1 L of distilled water should be enough to keep all the iron and other salts in solution, as the pH of this solution is less than 1 pH. This should save you some hydrochloric acid in the future ;)
Absolutely awesome sreetips!!! That powder is so clean looking. And that bar is screaming look at my stunning beauty! You have the refining and pours mastered there sir. Thank you for taking us along on your adventure!
I must say . I've been getting into refining .I've watched my other videos . Doing my research .in preparation of taking refining to a level .after retirement. By far I'm impressed by the meticulous detail in your videos . You are a true asset to me gaining the knowledge of your expertise. The lengthy videos you produce ,are the best I've seen . In my professional academic profession now ,being a automotive computer technician. Is extremely stressful. They are very sophisticated & demand precise diagnostics . For the reason of being extremely expensive . I hold the manuals, to be my bible in knowledge. Again , I've seen nothing better ,in the way of knowledge. I've experimented in a few batches & had no problems following your advice . Also recovering the the byproducts of Silver . Thank you .keep up the great videos . Maybe if enough folks do thier own refining. We could bypass the government & get back to the gold and silver standards . I've always said ,capitolism fails when credit infiltrates.
I find dropping the gold slowly in big batches helps stop that from happening. The indicator it was dropped too fast is the gold crystals forming on the beaker.
I’m still a really big fan of the oxalic reduction process and sponge the most. This was a really interesting way to show the differences in methods and especially wastes products. Awesome video sreetips
Wow, I never realized there was so much chemistry involved in purifying gold. I thought it had a lot more to do with different temperature cycles. Cool!
Thanks again for sharing your life an knowledge with us. Grateful to learn so much! I really did enjoy seeing 2 different was of precipitating the gold out... I still find the SMB fun to watch an less rinsing. But not equally interesting to observe... Thanks Mr. Tips
At 13:28 on 1 side of the thin dissolving bat you can see the mint press marks. On side 2 you can still see the con centric rings from when it was poured and cooled.
Strange Things: Yes, you had some nitrates "hiding" in he gold precipitate, (co-precipitated). You could avoid it by adding the SMB slowly to a more dilute gold solution. But what you did (HCl then more SMB) works just as good. The general rule for high-purity precipitation is to go slow -- like overnight.
Thank you very much for the video. I learned a lot. one of the best video I have seen lately. I hope in the next few video you could maybe show us how to grow gold crystals like you do with silver. again thank you very much.
I think it's really important to mix the solution with a stir bar during the smb dropp. It might also help to reduce the concentration of the solution by adding distilled water, it raises the PH of the solution and gold should stay out of it.
@@niagarajoe4402 Considering the amount of gold, that was not enough water at all. I'm talking about 5-10x more water. There might be hidden buffer effects that stop the PH from rising. The stir bar is necessary because there might be hidden pockets of acid in the mountain of gold.
@@dingo23451 You are right. Diluting it further lowers the acidity. When working with such a big batch, it is probably a good idea to measure the PH and bring it up to a neutral state with distilled H2O.
i was amazed when you melted the powder, i thought you will dry it up to show the powder gold, then wet up the powder and melted up the wet powder into a refined gold. good job.. ,
I wonder if putting a bit of graphite between the melt dish and the thermal wool would keep them from sticking to each other. Worth a shot. Awesome video, as per usual.
When you heat liquids and dissolve into them, it creates a "super saturated" solution which when cools down might have an impact on your refining.. or precipitating.. I am sure there are ratios for gold/vs nitric acid, but it would be great video creating your own ratio table. See how much nitric is required for 1g, 10g, 100g for records. Could also experiment with how much hydrochloric acid is necessary to "carry" the dissolved gold and whether more or less distilled water is better... Using gold to consume the excess nitric is brilliant circumvention...
You should also dissolve the SMB in distilled water and add that as a liquid to drop the gold out of solution. If your chloroauric acid is plenty watered down, then the gold will drop out of solution more efficiently, and you’ll lose less gold to gold waste.
Could you do a video on all that gold waste to see how much went over? Or do a refining of all the waste(the waste buckets) that would be pretty cool to see.
Got the jealousy bone worked up after watching this one Senior Chief, LOL. I just processed 2 and a half grams today and had to fight to get it, but was worth it. Great video as always! Have learned a lot from your videos, so I hope you keep them coming. Also, have you ever tried dissolving the SMB in water prior to using it for precipitation? Always wondered if it would be a benefit for large batches like this.
I love the book shout out and your helping others showing it as it is a well written book. I have seen many people asking about ^him^. The name is Calm Morrison Hoke and was a brilliant woman in science before women were accepted in those fields. She used her initials for that exact reason. I find it funny the assumption still runs today, but Hoke is a woman, a chemist, and wrote a fine book.
@@sreetips that it does. It could use an update as old as it is. Science didn’t change, but vocabulary and materials sure have. Maybe you could write one? Seriously. Your channel is awesome and I’m sure if you wrote a book on it, it would be as good as your channel.
The two different densities of liquid is so cool! I wonder if the 'hidden extra gold' when you work in large amounts is "big chunks" of gold (compared with what they are when they are dissolved, they would be huge), that due to the high overall concentration of gold in solution. Because, how else would it be able to make it through the filter?
A very good video again.......You try to keep us all interested with different things, a placer gold one would be nice again, maybe speak with Dan Hurd.
Super cool to see you refine 16,000 dollars worth of gold! Maybe it would be more efficient to do a bunch of small batches to ultra high purity, and then melt together.
Great video! In case anyone was wondering why not just use h2o2 to start to avoid nitric acid all together is that hcl and peroxide works best with gold foils or powder but is not very effective for bars - ask me how I know :)))))
Okay, I'll bite.... How do you know? I've been a little curious about that myself because it seems like it would be cheaper and much less potentially harmful waste produced. I have a personal thing for efficiency and optimization and my father says I'm lazy so I have to constantly point out to him that there's a fine line between laziness and efficiency. Suffice it to say I prefer efficiency expert over lazy but I suppose that's kind of splitting hairs unnecessarily
You need to be using distilled water when you’re dissolving your gold. The acid can dissolve metal, but you need water for the metal to dissolve into. If you have 100mL of aqua regia with gold dissolved into solution, you should add 100mL of distilled water as a final step before filtering. This will drop out common impurities like silver.
3:15, love how light refraction gives us 2 angles to see this process at.... checked the link cause I wanted to buy some, only to see that you're only doing US locations.... unfortunate for me, I'm north of the border....... as usual, great content.....
wow, dealing with thousands of dollars like that takes skill and courage!! make yourself a tea with the left over powder:)) now that would be an experiment:)
Just wanted to point out that C.W. Ammen "Recovery and Refining of Precious Metals" says to evaporate the aqua regia to nearly dry to expel the nitric, then re-hydrate with hydrochloric acid, again evaporate if any fumes of nitric remains, re-hydrate with hydrochloric and repeat until no nitric fumes before you dilute with distilled water to get a less than 5% acid before precipitating the gold. Sulphur Dioxide is the purest gold precipitation - and can be bought in compressed gas cylinders - Sodium Nitrite is the next purest followed by Oxalic Acid and Ferrous Sulphate is the dirtiest.
Remember any time you put ions of any metal into solution it will contaminate the recovery if it is not dissolved into the solution that can be fully rinsed out with "deionized" distilled water during filtration, as even sodium, calcium, lithium will alloy with the gold when melted into a button/bars.
Have you considered trying the Wohlwill process again to electrolytically refine a larger amount of gold? That ought to allow you to skip the repeated acid-based refining steps, since the gold anode only needs to be 95% pure. Then again, it would require keeping a large amount of chloroauric acid on hand to serve as the electrolyte. The last time you tried it, you used a 24k gold cathode, but stainless steel can apparently also be used toward that end. I wonder what the difference is, since if they work equally well, why would anyone use an expensive gold cathode? I recall that the Royal Canadian Mint refines all their gold electrolytically using stainless steel cathodes. They also seem to avoid acid entirely by refining the doré bars they buy from mines to 95% purity by pumping chlorine gas through the molten metal during assay (a.k.a. the Miller process).
i always wondered what it would look like to make a somewhat large electrolytic gold cell, albeit its cost i think it would be a viable way to refine large ammounts of gold if you already have the materials on hand. plus the gold would be extremly pure and crystaline too probably (which would probably make them more expensive)
Ferrous sulfate 2 is light-green, almost colorless(ferrous sulfate 2.5 is brownish-green). Ferrous trichloride is yellow (deep-yellow). I think that rich-yellow color in 1st hydrochloric rinse is FeCl3 not HAuCl4. (Fe3(SO4)4 + HCl FeCl3 +H2SO4)
The yellow color that leeches out is just chloauric acid held up in the gold particle sludge on the bottom layer. Having a stir bar in the yuge beaker would never let it settle down with the gold and with a couple extra spoonfuls of SMB you'd be over with it in a jiffy 👍
Good torch flame handling practice is never light the torch over the substrate as well never shut off the torch over your substrate. You can potentially blow out your sample from the dish as well as blemish your final product.
This is great,! some chemish ha!, i used to see my father and brother dissolving gold, and also white gold to use it for plating jewelry, and it defend what is the grade,18k , 14 k plating. combination of silver, copper and gold. but for white glod i dont know what combination they used. they used hydrocluric and muriatic acid and netric to dissolved the metal. Then they used 12vdc and the jewelry and soak it in the solution when they are plating. He also get back some of the silver that stick on the copper rod the he leave inside the tube with the solution, he then collect those sludge that stick on the rod and put then in the bolw wiith water and heating it up. these combination of sulfuric acid and water that he used to submerged the jewelry that he heat to cool down by soaking it. then heat up the slimey sludges sulotion until it turned into silver but in chunk not powder. the gold he dont do it because is a long process and he give to his friend that know how to acquired back the gold, ... one time by brother in law his putting the milk powder into the container and heating it up until all liquid is evaporated by evapuration, he think i dont know what he is doing, I told him that your collecting the gold and he just smile and be quite... great job for turning the gold into powder..
Man it gives me indigestion to watch all that gold go in and out of this mortal realm like that! lol. I think ill try a silver cell first. This is a great channel, I gotta find that book now.
It is smart to mention that your ice is made from distilled water but, to save time, and not mention it multiple times each video, you should add that "all ice is made from distilled water" into your disclaimer at the beginning of your videos. Love your work!
I don't know if this would be intetesting for anyone else, but I would love it if you demonstrated the weight of the combined liquid (without gold in solution) and solution with disolved gold. I know it is a moot situation but I feel it would be a neat comparison. Chemistry is cool! Science rules. And you are the youtube King of alchemy ❣
I'm placing my bet on it being "within the margin of error" on weight. Atoms are atoms. The form they take, they still have the same mass.
Had the same thought but different concept.
Gold bubble vs conventional bubble. Can I do it and will in it fall faster?
Can I recover the gold with a method I made?
Basically a bubble reactor. Essentially an air drying process.
We will see.
I’ve done this experiment. I weighed the gold solution and the same volume of plain water in the same container. I did it in the video with “Wohlwill” in the title.
@@sreetips I was wondering as well about this. I will definitely watch your Wohlwill video.
@@spokehedz yes atoms are atoms and gold atoms are far more dense than any of the other atoms that you're going to encounter in this process, mainly, oxygen, hydrogen, chlorine, nitrogen, sulphur, copper, silver and small amounts of various other elements. Not that these atoms aren't generally found in elemental form in solution but rather as ions and complex molecules. So yes, the gold bearing solution will be significantly heavier than the same solution minus the gold.
Always quite fascinating to see the different ways these precious metals get dissolved and turned back into solid
Wow seeing the different densities of the liquids after the first filter was really cool. The gold solution is always really interesting as it gets so concentrated too. That red color is incredible.
Wow! Great vid. Different dissolving, different precipitations……like a greatest hits compilation. Been going back through your previous stuff and this particular one really stands out. Thanks for putting in all the work!
You sir are a master of patience and alchemy. So much work!
The shine on the Corning-ware at 12:30 is mesmerizing! All of your videos are great, I've learned so much. Thank you!
Precipitations are a tricky thing, because if it happens too fast, inclutions can be formed. There are a few ways to mitigate this...
- reduce the concentration
- increase the temperature (the resulting crystals tend to "rearrange" in the forming process to give more uniform / less irregular shapes)
- slow down the feedrate (gives the mixture time to reach equilibriium)
- use seed-crystals as a starting point to form the bulk (aka pieces of condensed matter)
My suggestions for the SMB reduction step: dissolve and filter your SMB (maybe hot saturate), do the precipitation at around 50-60° C (sorry, I'm metric ;) ), use a magnetic stirrer and add the SMB solution first slow - then faster with your separatory contraption... this should give you a more uniform product and controlled reaction.
For the reduction with the iron salt... a magnetic stirrer and elevated temperature should do. Maybe adding a 1/10 of the reduction solution first (to produce seed-crystals) and after a couple of minutes the rest...
For washing the precipitated gold.... 2 mL of your hydrochloric acid in 1 L of distilled water should be enough to keep all the iron and other salts in solution, as the pH of this solution is less than 1 pH. This should save you some hydrochloric acid in the future ;)
Absolutely awesome sreetips!!! That powder is so clean looking. And that bar is screaming look at my stunning beauty! You have the refining and pours mastered there sir. Thank you for taking us along on your adventure!
The time lapse is so fun watch. I enjoy your content. Thank you Sreetips.
I must say .
I've been getting into refining .I've watched my other videos .
Doing my research .in preparation of taking refining to a level .after retirement.
By far I'm impressed by the meticulous detail in your videos .
You are a true asset to me gaining the knowledge of your expertise.
The lengthy videos you produce ,are the best I've seen .
In my professional academic profession now ,being a automotive computer technician.
Is extremely stressful. They are very sophisticated & demand precise diagnostics .
For the reason of being extremely expensive .
I hold the manuals, to be my bible in knowledge.
Again , I've seen nothing better ,in the way of knowledge.
I've experimented in a few batches & had no problems following your advice .
Also recovering the the byproducts of Silver .
Thank you .keep up the great videos .
Maybe if enough folks do thier own refining.
We could bypass the government & get back to the gold and silver standards .
I've always said ,capitolism fails when credit infiltrates.
This was excellent!!! Thank you so much for the demo. It was a big help with some of the questions I was having about my refining!!!
I find dropping the gold slowly in big batches helps stop that from happening. The indicator it was dropped too fast is the gold crystals forming on the beaker.
The SMB is definitely the way to go! The other method was way more costly, wast making and time consuming. Great video!!
Can hear excitement in your voice, especially when you talk bout the high purity solutions
Love your channel, we all learned a whole lot. Keep it coming. Thank you!
I’m still a really big fan of the oxalic reduction process and sponge the most. This was a really interesting way to show the differences in methods and especially wastes products. Awesome video sreetips
Wow. The gold solution that you make is such a pretty orange/red color in large amounts.
That’s One of my favourite refines, making amazing quality gold even better. Nice!🤜❤️🤛
56:00 I saw other comments about that time lapse, but didn't expect that! Best time lapse I've seen on UA-cam!
It’s a great job 👏! I started to watch,couldn’t stop more.
Wonderful video as always, glad to have something entertaining and educational to watch on this rainy day!
I find the chemistry so fascinating.
Wow, I never realized there was so much chemistry involved in purifying gold. I thought it had a lot more to do with different temperature cycles. Cool!
You make me want to try to precipitate out my morning green tea!! Awesome video.
Great video with in depth explanation. Thanks Sreetips
So so beautiful. Amazing quality Gold. Beautiful.
I don't what it is but I love to see the first spoonful of SMB going in and seeing that color change . So cool 👍👍
Thanks again for sharing your life an knowledge with us. Grateful to learn so much! I really did enjoy seeing 2 different was of precipitating the gold out... I still find the SMB fun to watch an less rinsing. But not equally interesting to observe... Thanks Mr. Tips
At 13:28 on 1 side of the thin dissolving bat you can see the mint press marks. On side 2 you can still see the con centric rings from when it was poured and cooled.
Отличный результат🎉.
Love the jewelers scrap video fascinating to watch
I have the most awesome appreciation for your video, I thank you.
You always keep it interesting, and great work with the camera, as well.
I get so excited every time you drop a video lol
Wish I knew chemistry enough to do this at home... some day
Always cool watching you do this stuff be safe everyone 👍🇺🇸
Strange Things: Yes, you had some nitrates "hiding" in he gold precipitate, (co-precipitated). You could avoid it by adding the SMB slowly to a more dilute gold solution. But what you did (HCl then more SMB) works just as good.
The general rule for high-purity precipitation is to go slow -- like overnight.
Thank you very much for the video.
I learned a lot.
one of the best video I have seen lately.
I hope in the next few video you could maybe show us how to grow gold crystals like you do with silver.
again thank you very much.
Super pure Gold acid looks so tasty haha wow. Almost moves syrupy or like slightly gelatinous liquid to.
Great job Mrs Sreetips🎉
I think it's really important to mix the solution with a stir bar during the smb dropp. It might also help to reduce the concentration of the solution by adding distilled water, it raises the PH of the solution and gold should stay out of it.
He did add distilled ice cubes and water…remember how concentrated the gold solution was before? It was in like 250ml …..and stir bar is unnecessary
@@niagarajoe4402 Considering the amount of gold, that was not enough water at all. I'm talking about 5-10x more water. There might be hidden buffer effects that stop the PH from rising. The stir bar is necessary because there might be hidden pockets of acid in the mountain of gold.
@@dingo23451 You are right. Diluting it further lowers the acidity. When working with such a big batch, it is probably a good idea to measure the PH and bring it up to a neutral state with distilled H2O.
the color of real money is brown! Love this, man you rock.
Loved every second of this video 🙏
Those time lapse shots were really cool
I think what you do is absolutely amazing I would definitely want to become a protege of yours and learm how to refin
Nice vid.... Im always taking notes.... and thats a good method .... Thanks for the lesson my friend..... ✌️🐥🧐😁
I hope to try that soon
i don't understand how or why but I will gladly watch these hour long videos any day. Sreetips is the GOAT.
I've never seen solution of gold be so red.. it's completely saturated with gold, so awesome...
i was amazed when you melted the powder, i thought you will dry it up to show the powder gold, then wet up the powder and melted up the wet powder into a refined gold. good job..
,
I wonder if putting a bit of graphite between the melt dish and the thermal wool would keep them from sticking to each other. Worth a shot. Awesome video, as per usual.
I find the sound of the fume hood oddly soothing
Great clip🎉. Thank you, and take care.
When you heat liquids and dissolve into them, it creates a "super saturated" solution which when cools down might have an impact on your refining.. or precipitating..
I am sure there are ratios for gold/vs nitric acid, but it would be great video creating your own ratio table. See how much nitric is required for 1g, 10g, 100g for records. Could also experiment with how much hydrochloric acid is necessary to "carry" the dissolved gold and whether more or less distilled water is better...
Using gold to consume the excess nitric is brilliant circumvention...
Harold_V on the goldrefiningforum.com taught me that - adding gold to consume excess nitric.
@@sreetips厲害的師父，就是善用與巧妙，我是這裡的新手，許多讚嘆還在發生
Great content as always. looks like it might be time to upgrade to a bigger fume hood
You should also dissolve the SMB in distilled water and add that as a liquid to drop the gold out of solution. If your chloroauric acid is plenty watered down, then the gold will drop out of solution more efficiently, and you’ll lose less gold to gold waste.
Could you do a video on all that gold waste to see how much went over? Or do a refining of all the waste(the waste buckets) that would be pretty cool to see.
Good show! Great gold! Thank you Sir!
When you did the first drop you could see every little scratch on the beaker when the gold would collect in the grooves!
Thank you I have to try this excellent video very knowledgeable five stars sir
Gooood afternoon from central Florida! Hope everyone has a great day! Great video!
Hello neighbor I'm in Lakeland and I guess I'm not the only one around here looking to hedge some bets on the economic future of the nation
You can go on the gold standard yourself. Don’t need to wait for anyone to start it up. Cash is trash, gold and silver are real money.
@@Rob337_aka_CancelProof Howdy neighbor!👋
That's great the crystal structure in gold looks different than silver
Hard work with awesome result. Love it. 😍
My favorite videos are when you and the Mrs go and find scrap jewelry and process them into pure gold.
Bro, that PiePan Omega is beautiful.
Got the jealousy bone worked up after watching this one Senior Chief, LOL. I just processed 2 and a half grams today and had to fight to get it, but was worth it. Great video as always! Have learned a lot from your videos, so I hope you keep them coming. Also, have you ever tried dissolving the SMB in water prior to using it for precipitation? Always wondered if it would be a benefit for large batches like this.
I love the book shout out and your helping others showing it as it is a well written book. I have seen many people asking about ^him^. The name is Calm Morrison Hoke and was a brilliant woman in science before women were accepted in those fields. She used her initials for that exact reason. I find it funny the assumption still runs today, but Hoke is a woman, a chemist, and wrote a fine book.
It’s got a lot of good info
@@sreetips that it does. It could use an update as old as it is. Science didn’t change, but vocabulary and materials sure have. Maybe you could write one? Seriously. Your channel is awesome and I’m sure if you wrote a book on it, it would be as good as your channel.
The two different densities of liquid is so cool! I wonder if the 'hidden extra gold' when you work in large amounts is "big chunks" of gold (compared with what they are when they are dissolved, they would be huge), that due to the high overall concentration of gold in solution. Because, how else would it be able to make it through the filter?
A very good video again.......You try to keep us all interested with different things, a placer gold one would be nice again, maybe speak with Dan Hurd.
Awesome video and nice gold bar thanks for sharing seertips
Super cool to see you refine 16,000 dollars worth of gold! Maybe it would be more efficient to do a bunch of small batches to ultra high purity, and then melt together.
It was almost neon when you devolved it with hydrogen peroxide. Really cool process.
Great video! In case anyone was wondering why not just use h2o2 to start to avoid nitric acid all together is that hcl and peroxide works best with gold foils or powder but is not very effective for bars - ask me how I know :)))))
Okay, I'll bite....
How do you know?
I've been a little curious about that myself because it seems like it would be cheaper and much less potentially harmful waste produced.
I have a personal thing for efficiency and optimization and my father says I'm lazy so I have to constantly point out to him that there's a fine line between laziness and efficiency.
Suffice it to say I prefer efficiency expert over lazy but I suppose that's kind of splitting hairs unnecessarily
Put a clock in your fume hood so we can see the time fly
Good suggestion
Looking forward to this one
55:56 loved this time lapse 🔥
You need to be using distilled water when you’re dissolving your gold. The acid can dissolve metal, but you need water for the metal to dissolve into. If you have 100mL of aqua regia with gold dissolved into solution, you should add 100mL of distilled water as a final step before filtering. This will drop out common impurities like silver.
Very interesting also a great video
3:15, love how light refraction gives us 2 angles to see this process at.... checked the link cause I wanted to buy some, only to see that you're only doing US locations.... unfortunate for me, I'm north of the border....... as usual, great content.....
eBay won’t cover precious metal shipped outside USA. I could potentially end up with no metal and no payment. Not to imply that you would do that.
wow, dealing with thousands of dollars like that takes skill and courage!! make yourself a tea with the left over powder:)) now that would be an experiment:)
Great video 😯‼️💯
Just wanted to point out that C.W. Ammen "Recovery and Refining of Precious Metals" says to evaporate the aqua regia to nearly dry to expel the nitric, then re-hydrate with hydrochloric acid, again evaporate if any fumes of nitric remains, re-hydrate with hydrochloric and repeat until no nitric fumes before you dilute with distilled water to get a less than 5% acid before precipitating the gold. Sulphur Dioxide is the purest gold precipitation - and can be bought in compressed gas cylinders - Sodium Nitrite is the next purest followed by Oxalic Acid and Ferrous Sulphate is the dirtiest.
Remember any time you put ions of any metal into solution it will contaminate the recovery if it is not dissolved into the solution that can be fully rinsed out with "deionized" distilled water during filtration, as even sodium, calcium, lithium will alloy with the gold when melted into a button/bars.
I had a bad dream I was watching and sreetips dropped the beaker of gold bearing solution! I woke up with the sweats!
I had exactly the same image in my mind when he was decanting with only one hand... 😅😅
That would be a nightmare
جهد جبار وعمل رائع
I've got to get me one of these funnels! The gf product I'm working on is taking forever with my work schedule!
Man you had me FREAKING OUT when you had 9.5 T Oz of gold dissolved in joust 250ml of liquid. Made my heart skip a beat.
That’s quite a lot of gold in a small amount of liquid.
Have you considered trying the Wohlwill process again to electrolytically refine a larger amount of gold? That ought to allow you to skip the repeated acid-based refining steps, since the gold anode only needs to be 95% pure. Then again, it would require keeping a large amount of chloroauric acid on hand to serve as the electrolyte.
The last time you tried it, you used a 24k gold cathode, but stainless steel can apparently also be used toward that end. I wonder what the difference is, since if they work equally well, why would anyone use an expensive gold cathode? I recall that the Royal Canadian Mint refines all their gold electrolytically using stainless steel cathodes. They also seem to avoid acid entirely by refining the doré bars they buy from mines to 95% purity by pumping chlorine gas through the molten metal during assay (a.k.a. the Miller process).
i always wondered what it would look like to make a somewhat large electrolytic gold cell, albeit its cost i think it would be a viable way to refine large ammounts of gold if you already have the materials on hand. plus the gold would be extremly pure and crystaline too probably (which would probably make them more expensive)
This clip most be the best i ever seen😊🎉
This was suspenseful
I watched about 8 hours of your videos and decided to retract my previous comment. You produce great content.
Ferrous sulfate 2 is light-green, almost colorless(ferrous sulfate 2.5 is brownish-green). Ferrous trichloride is yellow (deep-yellow). I think that rich-yellow color in 1st hydrochloric rinse is FeCl3 not HAuCl4. (Fe3(SO4)4 + HCl FeCl3 +H2SO4)
This is my favorite channel
Thank you!
The yellow color that leeches out is just chloauric acid held up in the gold particle sludge on the bottom layer.
Having a stir bar in the yuge beaker would never let it settle down with the gold and with a couple extra spoonfuls of SMB you'd be over with it in a jiffy 👍
Good torch flame handling practice is never light the torch over the substrate as well never shut off the torch over your substrate. You can potentially blow out your sample from the dish as well as blemish your final product.
Love these videos sreetips!! Would love to see you make a 1 kilo gold bar
😂🤣😂1kg.... I suggest you check out the 32oz bar video
I've watched for 3 years how have I missed this video lol
@@mitchwolff13 that was a scary one so much hot acid to deal with, definitely check it out 👍👍
Another fine(.9999) video.
This is great,! some chemish ha!, i used to see my father and brother dissolving gold, and also white gold to use it for plating jewelry, and it defend what is the grade,18k , 14 k plating. combination of silver, copper and gold. but for white glod i dont know what combination they used. they used hydrocluric and muriatic acid and netric to dissolved the metal. Then they used 12vdc and the jewelry and soak it in the solution when they are plating. He also get back some of the silver that stick on the copper rod the he leave inside the tube with the solution, he then collect those sludge that stick on the rod and put then in the bolw wiith water and heating it up. these combination of sulfuric acid and water that he used to submerged the jewelry that he heat to cool down by soaking it. then heat up the slimey sludges sulotion until it turned into silver but in chunk not powder. the gold he dont do it because is a long process and he give to his friend that know how to acquired back the gold, ... one time by brother in law his putting the milk powder into the container and heating it up until all liquid is evaporated by evapuration, he think i dont know what he is doing, I told him that your collecting the gold and he just smile and be quite... great job for turning the gold into powder..
Awesome stuff sreetips
Man it gives me indigestion to watch all that gold go in and out of this mortal realm like that! lol. I think ill try a silver cell first. This is a great channel, I gotta find that book now.
23:18 I wonder how much of the splashes on the walls is 24K gold 🤔
Yeah, let's refine Sreetips fume hood! 🤣🤣
Great video
It is smart to mention that your ice is made from distilled water but, to save time, and not mention it multiple times each video, you should add that "all ice is made from distilled water" into your disclaimer at the beginning of your videos. Love your work!
Tap water is fine. I started doing that because some folks were squawking about it.