It does not matter how many times you watch, you always pick up something new from your commentary. Fantastic stuff and what a beautiful bar at the end :)
I like the addition of the clock because it keeps me from asking stupid questions like “how long does this or that take. I also like watching the stump out work. If you put 10 minutes worth of that in 1 video, I’d watch it for ASMR purposes ❤
I'd say that about 50% of the appeal to these videos is the rinsing...THE RINSING!, and the impeccable hygiene in general. Nice bar, by the way, I want to sink my teeth into it.
You are welcome. Always a treat to see your latest project produce another spectacular result, and getting there is more than half the fun. Thank you Sir!👍👍🤟
Do you think the 2nd filter step could also have been skipped using the ice and beaker for the next reaction? I do like seeing the gold after the hydrochloric boil as it goes from dark chocolate cake to milk chocolate sponge. The gold looked fabulous after the 2nd refining. Love your work as usual my friend..👍
Even though I totally understand the chemistry involved, I'm still fascinated by the colour of the solution because I know there's a metal in there, but it's been *dissolved* and still has the colour I'd expect it to.
The little white flame looking stuff on the bottom of the beaker when SMB is being added, is really neat to watch. Fascinating, absolutely fascinating.
I've been bed bound due to health issues and I love your videos. My only complaint is that you don't post more often, but I understand it's a hobby and I'm thankful for what we get!
6:06: Completely untrue. It doesn't take any longer, and the nitric acid can still penetrate the inquarted gold just as well. The reason the nitric acid appears to be weak and take longer to dissolve the base metals is because you didn't add enough nitric acid to begin with. Please try my method on one of your future videos. Measure the amount of nitric acid required to dissolve all base metals in one go and add a little more for good measure. For 10k gold inquarted with sterling silver you can use the 3.4506 constant multiplied by the weight in grams of the karat gold to determine how much nitric acid in ml you need to dissolve all the base metals. For 14k gold you can use the 3.7512 constant. For 18k gold you can use the 4.05 constant. After around 3-4 hours, there will be zero fumes left in the beaker. At that point, decant the base metal solution as usual then rinse well with several distilled water rinses and boils until there is absolutely zero color left and the distilled water remains crystal clear. Then, do a second nitric acid treatment, and you will notice zero color change or fume production. Proceed again with several distilled water rinses and boils to rinse the gold well, and then you can proceed to aqua regia. Please try this method. Your subscribers need to see this. Thank you, sir. Copper Inquarter
The fume hood is good for human safety but also because nitric fumes will rust literally every piece of steel in your workshop, sink, pipes, etc. That stuff is really high on the corrosive scale. Also please don’t dump it down the sink or toilet, into the yard, sewer etc… Be like streetips and treat your waste properly. 👍🏻
the first smb precipitation when you first start to let it settle after stirring looks like some sort of pumpkin cider or something, kinda scary how apetizing some of this stuff can look considering the chemicals involved
That's one good looking Gold Bar... @sreetips why don't you show the stannous test after precipitation with SMB.. Just to see what's left in solution.. Any orange or green
Did you know that in 1940, when Germany invaded Denmark, a Chemist dissolved his two friends' Nobel Peace Prizes in Aqua Regia and put it up on a shelf until after the war? If the Germans had found them they would have confiscated them for the gold content.
100% don't mess with chemistry unless you understand chemistry. You absolutely can die playing around with it. But if you understand you're a wizard Harry.
The bar came out really good, given that you even tried to save on effort at some stages. You seem to be really optimizing the process both in terms of labor reduction and the quality increase!
Would love to see an experiment where you do a full process of aqua regia x3 and acid boils x 3 for 1 ounce bar, and then a second bar with aqua regia x2 and acid boils x 2, and then get the two bars tested for purity to see what the differences are..?? Keep up the great videos
"Spooky to watch" Eagerly awaiting the Sreetips Halloween Special. "Now we inquart the haunted gold with the spirits of these silver forks I bought at the creepy yard sale" Have blacklights, spider webs, and pumpkin stickers.
Thank you so much for all your hard work,but I can’t help but when you add sulfuric to drop lead I wonder if you could get a surplus nitric bye trying to dissolve lead again .".
Why do you do multiple refinings if you just sell the gold to a refiner which will refine it again? Is it financially advantageous, or maybe I'm mistake about what you do with the gold afterwards. Thank you for the great videos. Your excellent at explaining what you're doing and why.
Great vid sad part is a lot of “ gold dealers” won’t buy unserialized self poured bars unless they have XRF on site to determine purity or drill it. Love the vids though.
While I like the clear video shots in the resent refining episodes, I still think having a secondary containment vessel would be prudent. Maybe a clear Pyrex vs the Corning Ware as a compromise. Your lab, your rules. Stay safe.
I am glad you aren't doing the nitric acid removal outside, it's always unpredictable which direction the nitrogen dioxide gas will go, even with a gas mask on lol
Correct, even if you approach from the upwind, the air will wrap around your body as you get close to the reaction, pulling the fumes right at you. Even holding your breather, turn and walk away ten paces, you can still smell it. The fumes get in your hair, your eyes, in your clothing, and in your lungs. There’s no way to safely do these reactions without a fume hood.
So where does the gas actually get vented to? Does it go through like a carbon filter and then to the outside, or does your hood have something to process the nitric dioxide internally?
Random request. For a video, could you leave out the expected yield from your equations so we can try guessing the final weight? lol. I try doing it from time to time based on the starting gold weight and how much enquarted gold/ gold sludge there is 😅😅😅
The result is what I watch it for. As a chemist, I’m always looking for sources of error that creep into the process… He isn’t exactly sure if his input, so any result will be a guess.
Just for shts 'n' giggles, could you make a super saturated solution of sodium metabisulfite, then add a stirr bar, then add the Dissolved gold slowly. Might make for a visually pleasing gold drop?.. Mabe?! 🤞👍 Thanks for Sharing Mr Sretips All the best Tim
20:56 I disagree with this. When all of your solid gold is gone, there is only 1 place it could be. It’s a complete waste to lose some to a filter strip, which can quickly add up to a lot of good due to the concentration. Stanis Test it after you precipitate to make sure you got your gold back out of solution at the end.
I get every bit of my gold back. I pour it into my waste flask. That’s my off-line savings account. Any gold in the filter gets saved and processed. I rinse the funnel (after the paper is removed) down into the flask. Stannous test is always a good idea.
it seems to me that adding the non reagent grade stump out adds impurities back in. Would it not be better to dissolve the stump, and filter it before adding it for precipitation? I would love to see it added slowly in ionic form to the gold and watch what happens with a stir bar.
I’ve done it before, but it’s been a long time. Someone suggested pouring the gold into a sat solution of stump out. I might try that for my next gold refining video.
You keep clogging your filters. You perhaps can IMHO use the gravity effect of a sluice filtration system to remove the heavy elements before the paper 📜
It does not matter how many times you watch, you always pick up something new from your commentary. Fantastic stuff and what a beautiful bar at the end :)
I like the addition of the clock because it keeps me from asking stupid questions like “how long does this or that take. I also like watching the stump out work. If you put 10 minutes worth of that in 1 video, I’d watch it for ASMR purposes ❤
After watching many of these I would love to see a time lapse of stump out working on an actual stump
I don't think setting it up would be possible, but a time lapse of the silver crystals growing in the silver cell would be awesome.
Gooood evening from central Florida! Hope everyone has a great night!
Hey fellow central floridian!!!
Heyo from Colorado Springs!
Goooood evening!
Gets better every video .. Youve come a long way in your refining processes.
This bar was absolutely beautiful!
A brand new Sreetips video!?! I needed this tonight. 60 hour week at work just ended. I’m beat.
As always, just completely in awe of your process. Refining two metals at once is genius. And I dig that neon clock!
Time-lapse is awesome with the clock in the background, thanks! (And that's a neat clock!)
I appreciate your nitric acid explanation. I also appreciate the variety of clocks in your videos.
I'd say that about 50% of the appeal to these videos is the rinsing...THE RINSING!, and the impeccable hygiene in general. Nice bar, by the way, I want to sink my teeth into it.
I love the drop the patterns that it makes are memorizing and beautiful thank you for sharing another awesome video with us six stars sir
always a good watch, and you do a great job with your production quality on video as well - just the right amount of commentary - very educational.
Always a pleasure to watch your progress in action, and the results are FANTASTIC!!!
Never disappoints! Great vid. That SMB cloud NEVER gets old.
That's a fine chunk of gold, .999 fine.
Glad you added the clock, it kind'a gives a perspective of how much time some of these reactions take.
Fascinating process, you clearly know your chemistry.
You are welcome. Always a treat to see your latest project produce another spectacular result, and getting there is more than half the fun. Thank you Sir!👍👍🤟
I just love you, your a Wizard! I sit and watch your videos amazed every time. Thank you!
Wow beautiful how sharp you can see the precipitation of the gold 👍🏼🇬🇧😃
Thanks for the video Mr Sreetips. That 2nd precipitation was amazing to watch. Well filmed.
Love what u do on this channel best channel at what u do. Fantastic work 👏 👍 👌 😊😊😊 amazing
Thanks for that
Thank you for adding the clock to your videos.
Do you think the 2nd filter step could also have been skipped using the ice and beaker for the next reaction? I do like seeing the gold after the hydrochloric boil as it goes from dark chocolate cake to milk chocolate sponge. The gold looked fabulous after the 2nd refining. Love your work as usual my friend..👍
Damn, that bar looks perfect. Congratulations.
Beautiful! Love the added light on the precipitation.
29:35 a drop of dishwasher "rinse aid" here will help settle that much faster and help stay settled.
Who said Chemistry was boring ? This stuff Never gets Old !
Hello sir, the quality of your videos and of your poured bars goes up and up constantly... Amazing...
Even though I totally understand the chemistry involved, I'm still fascinated by the colour of the solution because I know there's a metal in there, but it's been *dissolved* and still has the colour I'd expect it to.
Nice work Sreetips, thanks again for sharing your work with us.
What I look forward to most every day is watching SREETIP release new videos
The little white flame looking stuff on the bottom of the beaker when SMB is being added, is really neat to watch. Fascinating, absolutely fascinating.
Amazing work my friend
That bar... so lovely!
Try putting the light behind the beaker pointing towards the camera. That should give you real good illumination to see the reactions
I've been bed bound due to health issues and I love your videos. My only complaint is that you don't post more often, but I understand it's a hobby and I'm thankful for what we get!
I’m getting older myself. When producing these videos it takes a hundred and ten percent of me. And I’m wiped out for a day or two after posting.
@@sreetips I'm sure of it! I hope you took it as a compliment. The videos you produce are great!
I’ll get some new videos posted this week. Thanks for watching!
My favorite part is the reaction of the SMB.👍
Thank you again from Berea Kentucky
6:06: Completely untrue. It doesn't take any longer, and the nitric acid can still penetrate the inquarted gold just as well. The reason the nitric acid appears to be weak and take longer to dissolve the base metals is because you didn't add enough nitric acid to begin with. Please try my method on one of your future videos. Measure the amount of nitric acid required to dissolve all base metals in one go and add a little more for good measure. For 10k gold inquarted with sterling silver you can use the 3.4506 constant multiplied by the weight in grams of the karat gold to determine how much nitric acid in ml you need to dissolve all the base metals. For 14k gold you can use the 3.7512 constant. For 18k gold you can use the 4.05 constant. After around 3-4 hours, there will be zero fumes left in the beaker. At that point, decant the base metal solution as usual then rinse well with several distilled water rinses and boils until there is absolutely zero color left and the distilled water remains crystal clear. Then, do a second nitric acid treatment, and you will notice zero color change or fume production. Proceed again with several distilled water rinses and boils to rinse the gold well, and then you can proceed to aqua regia. Please try this method. Your subscribers need to see this. Thank you, sir.
Copper Inquarter
Love the neon clock that blue brings out the blue tint real good
The fume hood is good for human safety but also because nitric fumes will rust literally every piece of steel in your workshop, sink, pipes, etc. That stuff is really high on the corrosive scale. Also please don’t dump it down the sink or toilet, into the yard, sewer etc… Be like streetips and treat your waste properly. 👍🏻
Adding that clock is brilliant🤯
Thats the best looking gold bar ive seen in a long while
That's one of the best bars you've poured in some time Mr Tips. Impressive shine on this one sir.
The pour filled the mould perfectly, so satisfying and verve racking to watch. I thought you were about to have another overflow 😂
You truly do have the Midas touch.
And thank you Sir.
Oh I love your videos! Learning so much 😸
I believe the term you are searching for is "saturated" regarding used but active nitric acid being saturated with base metals
the first smb precipitation when you first start to let it settle after stirring looks like some sort of pumpkin cider or something, kinda scary how apetizing some of this stuff can look considering the chemicals involved
The gold solution with ice looks nice for a hot summer day drink.
I always say the puddle of gold in the melt dish before the pour is a "forbidden egg yolk" cracks me up every time
That is one of the prettiest bars you’ve ever done
That close up of the nitric fumes coming from the silver jar was so neat and another stunning gold bar at the end. 👍
Not only was the refining perfect but you poured that Gold into the mold like a Boss! I hope i can find everything in your video on Amazon 😁
WHAT a POUR...!!!! Great job, you nailed that one!!
I like the addition of the clock
That's one good looking Gold Bar...
@sreetips why don't you show the stannous test after precipitation with SMB.. Just to see what's left in solution.. Any orange or green
Didn’t think to do it.
One of your best bars yet. Top ten, gotta be.
Did you know that in 1940, when Germany invaded Denmark, a Chemist dissolved his two friends' Nobel Peace Prizes in Aqua Regia and put it up on a shelf until after the war? If the Germans had found them they would have confiscated them for the gold content.
I’ve heard it. That’s an awesome story.
That was a Perfect poor, nicely done.
100% don't mess with chemistry unless you understand chemistry. You absolutely can die playing around with it. But if you understand you're a wizard Harry.
The bar came out really good, given that you even tried to save on effort at some stages. You seem to be really optimizing the process both in terms of labor reduction and the quality increase!
27:35 Sometimes it's the little things in life that make you happy
Sreetips entered a new speedrun category - refine 3ozT 999 gold from karat scrap - 12:00
This bar looks amazing, kudos, love watching your process
My favorite moment is when the gold powder becomes an ingot.
reliably great content
Would love to see an experiment where you do a full process of aqua regia x3 and acid boils x 3 for 1 ounce bar, and then a second bar with aqua regia x2 and acid boils x 2, and then get the two bars tested for purity to see what the differences are..?? Keep up the great videos
"Spooky to watch" Eagerly awaiting the Sreetips Halloween Special. "Now we inquart the haunted gold with the spirits of these silver forks I bought at the creepy yard sale" Have blacklights, spider webs, and pumpkin stickers.
Thank you so much for all your hard work,but I can’t help but when you add sulfuric to drop lead I wonder if you could get a surplus nitric bye trying to dissolve lead again .".
Thx sreetips another fine video 🇮🇪
Awesome as always!
That's a fine looking bar Mr Sreetips.
999 pure 24k doesn't get much better than that.
Very beautiful little bar. Thanks for sharing with us.
I am guessing that it was 999 fine? What more would you need to do it to make it 9999 fine?
Electrolytic gold refining will get four nines gold.
Add a little sand to your capture dish to even the heat to stop 🛑 cracking your glass 🍷
There is supposedly silver in solar panels. I would like to see the master try to get silver from broken panels.
Why do you do multiple refinings if you just sell the gold to a refiner which will refine it again? Is it financially advantageous, or maybe I'm mistake about what you do with the gold afterwards. Thank you for the great videos. Your excellent at explaining what you're doing and why.
For the show
Great vid sad part is a lot of “ gold dealers” won’t buy unserialized self poured bars unless they have XRF on site to determine purity or drill it. Love the vids though.
It's always amazing to watch you work.
Thank you Sreetips!
I can only agree :) It IS a spectacular bar and it's fun to wtch you make it
While I like the clear video shots in the resent refining episodes, I still think having a secondary containment vessel would be prudent. Maybe a clear Pyrex vs the Corning Ware as a compromise. Your lab, your rules. Stay safe.
Agree
I like to thank you for shareing! 🤓👍
I am glad you aren't doing the nitric acid removal outside, it's always unpredictable which direction the nitrogen dioxide gas will go, even with a gas mask on lol
Correct, even if you approach from the upwind, the air will wrap around your body as you get close to the reaction, pulling the fumes right at you. Even holding your breather, turn and walk away ten paces, you can still smell it. The fumes get in your hair, your eyes, in your clothing, and in your lungs. There’s no way to safely do these reactions without a fume hood.
So where does the gas actually get vented to? Does it go through like a carbon filter and then to the outside, or does your hood have something to process the nitric dioxide internally?
It goes out the stack into the air, just like my car exhaust. But the gases from my car do far greater harm than my occasional chemistry experiments.
@@sreetips No judgement from me. It has been the only piece of your setup that I couldn't figure out and I finally got brave enough to ask.
Random request. For a video, could you leave out the expected yield from your equations so we can try guessing the final weight? lol. I try doing it from time to time based on the starting gold weight and how much enquarted gold/ gold sludge there is 😅😅😅
The result is what I watch it for. As a chemist, I’m always looking for sources of error that creep into the process…
He isn’t exactly sure if his input, so any result will be a guess.
Sreetips, can you give us a rough summary of the volume and costs for all the supplies you used to purify 82 grams of AU to 4 9s?
Less than fifty bucks all in (not counting the gold).
watching those nitric boils pull is like the most relaxing part of the videos man!! why are you skipping past that??
To save time.
I think maybe I am turning narcoleptic.
149👍's up sreetips thank you for sharing 😊
Just for shts 'n' giggles, could you make a super saturated solution of sodium metabisulfite, then add a stirr bar, then add the Dissolved gold slowly. Might make for a visually pleasing gold drop?.. Mabe?! 🤞👍
Thanks for Sharing Mr Sretips
All the best
Tim
That’s a good suggestion, thanks!
@@sreetips Thanks Sreetips! I really enjoy watching you experiment with Gold.
Have a good weekend
Cheers Tim
Spectacular looking bar ❤ ... what type of disposal gloves do you use?
Nitrile
Very nice for looks awesome
20:56 I disagree with this. When all of your solid gold is gone, there is only 1 place it could be. It’s a complete waste to lose some to a filter strip, which can quickly add up to a lot of good due to the concentration. Stanis Test it after you precipitate to make sure you got your gold back out of solution at the end.
I get every bit of my gold back. I pour it into my waste flask. That’s my off-line savings account. Any gold in the filter gets saved and processed. I rinse the funnel (after the paper is removed) down into the flask. Stannous test is always a good idea.
I like the new clock
it seems to me that adding the non reagent grade stump out adds impurities back in. Would it not be better to dissolve the stump, and filter it before adding it for precipitation? I would love to see it added slowly in ionic form to the gold and watch what happens with a stir bar.
I’ve done it before, but it’s been a long time. Someone suggested pouring the gold into a sat solution of stump out. I might try that for my next gold refining video.
Another awesome gold bar thanks for sharing sreetips
Great vid as usual
You keep clogging your filters. You perhaps can IMHO use the gravity effect of a sluice filtration system to remove the heavy elements before the paper 📜
$3,627 & $58.50 a gram 😮 nice!!!
great bar I like the clock it tells us how long it takes you thanks.
Great looking gold!