if someone told me as a child that when I grew up I would spend hours watching videos of a guy refine precious metals I never would have believed them. Sreetips and the Hoof GP guy who trims cow hoves are my favorite channels to watch on youtube these days

@pennybridgefreeriders

9 ай бұрын

Hahah iknows right, getting the goldfever by watching this homecook mad scientist 🤣🤣❤️

@wolflarson100

9 ай бұрын

Yep!

@hannable3871

9 ай бұрын

I like watching them both as we'll.

@eacord6499

9 ай бұрын

You could be watching something worse. At least those 2 channels are educational and entertaining.

@PaulBrown-uj5le

9 ай бұрын

Hoof gp.... is he the Irish or the Scottish guy?...

It was incredible to see some of our questions demonstrated as a sorta "let's do it and see" experiment. Added a bunch of anticipation after the previous cliff hanger, and made for a special experience. I can't thank you enough for the creative treatment of these topics boss 😊

An awesome way to spend a Saturday afternoon!! Woot!!!

I knew it was still there. You can refine gold, you can melt gold, you can evaporate gold, but one thing you can't do is destroy gold. If you can destroy gold you can make gold.

@sreetips

9 ай бұрын

However, you can cause it to go up in smoke, literally. Beautiful purple smoke. While you cry over seeing your gold vaporize into thin air.

Good evening from Nottinghamshire UK. I hope everyone is happy and well.

@sreetips

9 ай бұрын

Good evening

It's funny, you know, but every time I see the gold in the dish ready for melting, it always looks like you're about to feed the cat! 😂

@jimalcott760

9 ай бұрын

I think it looks like my grand kids diaper….

@PaulBrown-uj5le

9 ай бұрын

​@@jimalcott760haha me too😊

I was really looking forward to this video

Gooood afternoon from central Florida! Hope everyone has a great afternoon!

@sreetips

9 ай бұрын

Goooood afternoon!

Really enjoyed these last couple of videos. looking forward to the silver cell time-lapse. Thanks again Sreetips 👍

I really enjoy watching you work thru a problem, you dont let it get to you. Just figure out how to continue and get her done. thanks another great video✌️

the peroxide mix was much better a choice than my suggestion but yeah the gold wouldnt be lost in the overcooking so i figured it was just a matter of rerefining ... and it was

Excellent series Sree. Have always wanted to see the H2SO4 reaction with lead. The crystal chloroauric was really interesting as well. You’ve been upping the game lately, switching up methods, adding some new production aspects. Well done.

@sreetips

9 ай бұрын

Thank you

@JFEnterprize

8 ай бұрын

@@sreetipsdo you have vids of how to reclaim metals from electronics? Is such possible for diy’rs? I see on eBay guys are selling brass lumps with metal in them. Would like to see a semi-pro reclamation of one of those if you havnt done one yet. My single and double displacement math isn’t sharp and not sure if Frey scientific still readily ships these chemicals to homes or else I’d possibly attempt so myself. 🎉❤

Wasnt worried a bit! Had the faith in knowing youd pull it back from the brink. The Mrs can relax now.. 😂 BTW, excellent shot of the gold flowing from the dish on the pour!

First 👍's up sreetips thank you for sharing 😊

I really enjoyed watching these two videos. This is what I call testing a positive control. The test being "Does sulfuric aclid really precipitate out lead contamination?" I think you answered this question. It would be nice, however, to get some elemental analysis of this sample of gold to verify you have not lead in it. You have a nice little chunk of gold that could be sent our for analysis.

@Jultsu

9 ай бұрын

This! Bumping so sreetips would see it better

You re-dissolved it! I would have never guessed! ; ; Great video!

Arkansas's middle section is folded and fractured. As the Caribbean plate was forced into and under it water boiled up through the cracks. Every time i see you dissolving and percipitating minerals i think of home. Today i was looking at 2 billion year old sea bed that had mercury sulfide forced up a thousand feet above the sea level. I cant help but compare it to the vents at Yellowstone. Thanks for the videos.

@sreetips

9 ай бұрын

Geology, mining, and refining are related.

@chemistryofquestionablequa6252

9 ай бұрын

That's really cool to know. We moved to North central Arkansas last year, the Heber Springs area where my wife's mom is from. What area were you seeing the sea bed in?

@sreetips

9 ай бұрын

I’ve never seen that sea bad.

@Michael-rg7mx

9 ай бұрын

@chemistryofquestionablequa6252 Northern Missouri was the South tip of rock in North America. The sea bed sloping away to the South. When small animals began they grew a huge coral reef where the sea was shallow with mud sloping deeper to where the gulf of Mexico is now. First Africa bumped into the East side so hard that it crushed the sea bed and folded it upward forming the Appalachian islands. It slid under the North American plate raising it upand folding where the Mississippi River now runs. Then South America came North. It smashed into the Caribbean and rode over it pushing it into North America and under it. Places where there were coral like Northern Arkansas and Florida had their reefs killed as they raised up out of the water but new coral grew in the warm shallow waters. In Arkansas it pushed up from Little Rock to Oklahoma a string of islands so fast that no coral grew. The Quachita Islands. The land fractured down like the Mississippi River did but this time East to West where the Arkansas River now runs.

@chemistryofquestionablequa6252

9 ай бұрын

@@Michael-rg7mx that's really cool to know, I'll have to se if I can find anyplace near me where some of that is visible.

Watching this is so relaxing keep up the good work ❤

Wow! That double eye pour surface is awesome. Looks like the bar is looking back at you. And I think that little straggler was the final drop from the pour as you lifted up. Thanks for another great video! You covered a lot of ground with this one.

Awesome conclusion fantastic recovery thank you streets

thank you sir, i enjoy watching your videos.

this sketchy backyard chemistry is one of the reasons I love YT, this is the heart of YT for me. proper equipment? how about casserole dishes from the charity shop. official hoses? how about garden hose. proper sealed tubs? home depot anyone. i love this, and the fact it all works so bloody well, its amazing

@PetraKann

9 ай бұрын

Standard lab equipment is being used here. The porcelain dishes are a precaution in case the liquid overflows during boiling or the beaker cracks and leaks which sometimes happens. He uses a fume cupboard. Very safe and professional set up at home

@nunyabisnass1141

9 ай бұрын

That's what I liked about chemplayer. Boiling MnO2 in KClO to make permanganate over a kitchen stove. Would never try that myself but it was interesting.

Not a chemistry major, but it seems to me that when you heated the gold solution to dry, you just removed water out of the equation. everything else was still there. Personally I would have started with distilled water, added some heat, and see what happened. You essentially did that, though more expensively, with the hydrochloric acid {HCL + H2O) and Hydrogen peroxide (H2O2 + H2O) I observed that it was starting to dissolve in HCL, but looked like it ran out of water to suspend it (I know it is technically acid, but it's the water that is keeping it suspended) Then you added H2O2, and viola, it all started to go. My theory is that the H2O2 was giving off the extra hydrogen atom into the atmosphere leaving nothing but pure water behind. Which leads me back to my original thesis.The gold was already broken down and bound to the nitrogen, hydrogen, and chlorine. all of which are water soluble. No need to make another aqua regea (sp?) it's all there minus the water. Would be cool, now that you know you can recover if you could test my hypothesis with say a button's worth or just try it next accident. I'm pretty sure I'm right and it'll save you like $30 in chemicals next time.

You’re welcome. Well within range of the estimated yield will get you well past the porch door. A possible solution could be to use an electrical outlet plug-in timer to run the hot plate, of course adding another moving part goes against the grain of simplifying and streamlining. I have to believe the main concern was the live wire and not the state of the product, not to mention your wellbeing…that’s love! Thank you Ma’am and Sir! 👍👍🤟

If you look really carefully from about 17:00 onward it appears that there was a chunk of gold stuck to the outside of the crucible near the spout.. then when you poured it the heat melted it and it fell off when you set it back down.. at least that what it appears to be to me...

@SuperDavidEF

9 ай бұрын

I just watched it again and you're right. The gold piece was already stuck to the outside of the dish.

I knew you'd have to use hydrochloric acid, what I didn't know was you'd have to add a little more h2o2 to get the more stubborn bits to re-dissolve, another fascinating video Kevin ty very much😊.

LOVE THIS! You are such a killer chemist.

❤

Good work Sreetips! You got the gold back. No microwave meatloaf for you tonight, no sir-ree. It's a steak dinner and a well deserved back rub.

A piece of gold walked into a silver bar. "AU, get outta here!"

@sreetips

9 ай бұрын

Good one!

Most likely what happened is that part of the chloroauric acid crystallized out, and part decomposed to elemental gold and chlorine. Rehydrating and re-dissolving the elemental gold with H2O2 was exactly the right approach :)

Good deal! I don't know a whole lot about gold refining, but know a bit about chemistry. I knew you'd be fine when I watched your video last night. It would be a pain in the butt to get it back and you'd probably lose a little to evaporation, but I knew you'd be able to recover it.

Since the Mrs was pissed about the burnt gold, i hope you played a trick on her and showed her the little piece of gold and said because of "your" daughter this was all of the gold you was able to recover...then show her the bar later after she chewed out the daughter(maybe even let the daughter in on the joke as well beforehand).

@sreetips

9 ай бұрын

Oh, I wish I’d have thought of that. That would have been a good gag. But I have pulled back from raising her stress level since we’ve entered our “golden years.”

I’m ready for a filter paper recovery/refining. I was telling someone earlier this week that I’m a sucker for anything you do involving fire. Lol. I’m a firebug.

@sreetips

9 ай бұрын

Me too!

I stopped at 4:28. I As I said in the other video, you only need to rehydrate it. , and you would have percentage of metalic gold. That's what the yellow is. Like any other metalic solution if the concentration gets to high the metal will come back out as metal. Gold is no exception. As the solution begind to evaporate it must drop out some of the metal. You have some of the finnest gold known to man sitting in the bottom

I bet Mrs. Sreetips was happy! hahaha Ya'll are the cutest

Awesome brother

13:48 I can't believe how well that worked! 🤯 .

Burnt your solution? Mr. White would not approve.

Hi, I love your videos. Just wanted to ask what is the percentage you charge for refining gold scrap.

@sreetips

9 ай бұрын

I don’t do any till refining. This is my hobby.

Thanks away this is very simple way to get the gold precipitation well

Would be cool to see you use frozen msb in ice cubes cool off the solution aswell as precipitation out the gold

@sreetips

9 ай бұрын

That would be a cool experiment.

I have to admit, I have been checking every hour for this update! I have been worried sick!

I think you can add aluminum and it turns red/ pink gold

Very happy to see you recover the gold with no losses. You never know, one of these accidents may lead to a discovery of quadrupling your yield of gold 😊

@Vile_Entity_3545

9 ай бұрын

Well unless he had a nuclear reactor to transmute the element of gold into lead then he was never going to lose anything. Elements do not disappear into thin air.

@scrapman502

9 ай бұрын

He never loses gold, it just gets left behind in his filters, poured out in his rinse jars and spilled onto tables. Ne never loses it! He Just temporarily misplaces it!

@8:33 NEVER use that ice tray for personal consumption, it has traces of harsh acids from your gloves all up in it!

@sreetips

9 ай бұрын

Correct. Good advice. I have a small refer used to make ice and keep certain chemicals cold. Dedicated and not used for foods.

Glad to see more boiling of the precipitated gold! Crazy how fast it’ll settle! After you perform an an HCL rinse, if you want to try something different to show the audience and clean the gold up a tiny bit more, rinse the hcl with distilled well, and then add some distilled water and about 15% sulphuric acid and then boil again. It will clump all your gold powder together into a nice ball you can pick up with your fingers and just set into the melt dish :)

@sreetips

9 ай бұрын

Good suggestion, I’ll give it a try.

@redbaronrefining5322

9 ай бұрын

@@sreetips awesome! I look forward to it!

@sreetips

9 ай бұрын

Actually I’ve had this happen when I tried dissolving the gold in piranha solution a year or so back.

Great video Sreetips! It's like watching everything in reverse this time 🤣Even the HCL bath you usually give the gold was in reverse if you really think about it. The gold came right out with that signature " red " caramel color. You know when you see that color it's gonna yield high purity goodness 👍

Keeping a stash of dried chloroauric crystals is a nice stealthy method of storage. Great for when the G man comes knocking

@sreetips

9 ай бұрын

The G man won’t know, unless you tell him.

That's the first time I've seen u drop a little bit from the pour, but am glad u got the gold back so a amazing job well done 👏.

Wonder what would have happened if you had gone straight to the melt dish vs rehydration and precipitation again 🤔

@sreetips

9 ай бұрын

Probably be like trying to melt silver chloride. I know sodium chloride (table salt) will go molten and not burn.

You should rename this video: “When Precious Metal Refiners Get Bored.” Lol! 😉👍 I just love all of the different ways you find to get to the same result. Or sometimes BETTER results. Never stop doing what you do, Sreetips! 🙂

You got me at Frosting 🎂 !!!

Is the frostiness on the bar from the torch over the mold? Have you ever tried turning that off just before the pour?

@sreetips

9 ай бұрын

No, and no

Nice recovery Sir. Looks like Mrs. Sreetips is going to let you sleep inside tonight. 😊

Well done as always.

Nice recovery :) I bet that will put mss Sreetips at ease, since you got the situation under control. You seem to favour the nitric acid method to dissolve gold (in aqua regia) over the hydrogen peroxide method. Is there a specific reason for that?

@sreetips

9 ай бұрын

No excess nitric to deal with

Would you say this is your biggest mistake to date? I often wondered if you’d ever lost gold down to knocking over a beaker or some other accident? A great set of videos, thanks for all you do.

@sreetips

9 ай бұрын

No, I broke beaker full of PGMs once during my stock pot one video series. I think it was part 8 of the 16 part series.

this video came up for me to watch but there was no sound but the first part was really cool but did not understand it to well would love for u to explain or do a video on it the next time you get pins Gold Recovery Using Salt | Recover Gold From Gold Plated Pins | Electrolysis Gold Recovery happy you was able to get your burnt gold back

@sreetips

9 ай бұрын

I used salt and vinegar to remove gold foils from trimmed circuit card fingers about 8 or 9 years ago. Thank you.

Nice one 😊🇬🇧

Hello tohether. Sreetips would you explain why and how you make the math for the refining to reach the necessary % for the Gold to be able to refine it. I did not understand how and why this Math is made and what the math is for 18K Gold. Thank you very much.

@sreetips

9 ай бұрын

Please see “how to calculate silver needed for inquartation” video posted on my channel.

Really cool reaction! 5 Stars my friend.

Hey Mr Sreetips is it possible to dissolve and recover gold using sulphuric acid?

@sreetips

Ай бұрын

No

Good deal man. Figured it would be pretty easy to revive. With gold being so limited by its reactivity,. There's not much option for what would be sitting in the beaker.

a habit that I developed when cooking something that takes time is to set a time on my phone to remind me to go check the oven before caramelization becomes carbonization. interesting video tho,

Nice recovery - all’s well that ends well.

Not sleeping on the couch tonight! :D

Very interesting to see you recover that burned gold. 👍

Another question if the answer is yes, then hopefully it'll be a challenge for a future video! Can you take the dehydrated gold & melt it to a bar? Maybe make a video using a small amount to show us. Reason I asked is it looked like dropped gold.

@sreetips

7 ай бұрын

Too risky. In that state it could vaporize and cause losses.

Is it possible next time your melting your gold powder to show some half melted gold and some gold powder? I always wanted to see the contrast of gold mixed with gold powder. Always thought it would be a cool shot.

@sreetips

9 ай бұрын

Will do.

I thought he’d use the hydrochloric acid to rehydrate as he does when he boils down the solution to eliminate excess nitric. Then drip in some nitric to create aqua regia but I assume the peroxide is less reactive.

@sreetips

9 ай бұрын

Peroxide ensures no nitroso compounds.

I would be happy if it even registered on the karat scale. This is the only guy who can legitimately look at a gold bar and say it's not shiny enough!

What is it that causes the hydrogen peroxide to put the gold chloride back into solution? Would the addition of more HCL done the same thing?

@sreetips

9 ай бұрын

No, it has something to do with oxidation. But I’m not a chemist so I can’t give you the actual specifics.

I'm guessing Mrs Sreetips isn't furious anymore 😂😂😂

@sreetips

9 ай бұрын

Correct. She was happy when I put that bar in her hand.

I was wondering when you started to work on the dried gold was the dried gold heavy still, I don't know if someone else asked this but I really wanted to know and by the way I love your videos!

@PaulBrown-uj5le

9 ай бұрын

Yes it would have been heavier.

@sreetips

9 ай бұрын

Yes, the mass is still there

I was pretty sure you had not lost the gold... however, which process do you believe is the best way to refine the gold? Great video! I appreciate you sharing!

@sreetips

9 ай бұрын

As far as precipitation; SO2 gas. For refining; the Wohlwill process, electrolytic gold refining.

Little known fact... can add Sulfuric acid to your urine to tell if u r being poisoned... white is lead sulfate... black is chromium sulfate... dont ask me how i know....❤

@sreetips

9 ай бұрын

Forensics

yes sir i told you you have to make AR to recovery the burned Aucl2 AR best than hcl+h2o2 nice job

Wow that's turned out beautiful gold bar thanks for sharing sreetips

Was the Purple stuff on top of the crust some PGMs ? If so, you might have the beginnings of a thing right there !

@sreetips

9 ай бұрын

I don’t think so. But there was some kind of contamination. SMB will bring down traces of PGMs with the gold, if present.

Have you considered applying ammonia rinsing and boiling to the precipitated gold powder as an additional procedure? This might ensure the removal of platinum group metals and copper. I believe this could enhance the purity, potentially yielding a lighter brown color rather than a dark caramel hue.

@sreetips

9 ай бұрын

Ammonia is not necessary and adds another step to an already lengthy process.

Hey Sreetips, have you ever tried using DEF fluid for diesels as the urea to denox?

@sreetips

9 ай бұрын

No

@dann409

9 ай бұрын

@@sreetips If it's 35% urea and 65 % distilled water, it should work right?Only downside is all the extra water. Does adding water at that stage negatively effect drop out?

@sreetips

9 ай бұрын

None of the professional refiners that I learned from used urea. It’s antiquated and not used by modern refiners. There are much better methods to control the amount of excess nitric in the gold solution. It’s not mentioned once in the gold refiners bible: Refining Precious Metal Wastes by C.M. Hoke. There are two chemicals that keep cropping up that people want to see; ammonia to remove silver chloride, and urea to remove excess nitric. I don’t use either one because they just aren’t essential. Hope this helps.

@dann409

9 ай бұрын

@@sreetips I really appreciate you taking the time to explain.

I hadn't thought that some of the gold could have dropped during the evaporation. That's cool.

Why not use a distiller to get the hcl back and stops bad fumes going everywhere

Does it seem like using Hydrogen Peroxide is better than using Nitric Acid? To me, it seems like it's cost effective rather than from a purity standpoint. Just wanted to hear your opinion about it

@gfhrtshergheghegewgewgew1730

9 ай бұрын

i think it's easier and cheaper for the amateur/home chemist to produce their own nitric acid than it is for them to produce their own 29% hydrogen peroxide, if you're talking strictly in terms of purchasing chemicals then hydrogen peroxide is cheaper yeah

@sreetips

9 ай бұрын

It’s cheaper and actually cleaner because no nitric present that must first be remove before precipitation. But it’s not as fast as nitric.

Could try ice with little to no gas in the precipitation process. Bartenders use it for presentation. It might keep the cloudiness in solution down while stirring in the sodium bisulfate. It’s just air but it could keep things cleaner looking. Also might be a good video just for experimenting.

Sir is this burnt gold chloride also soluble in water

@sreetips

7 ай бұрын

I’m not sure.

Nice recovery sir this was an awesome video six stars

Nice save!

I had no doubt you'd find a "solution" to fix it.

Have you made a video using MX3?

@sreetips

9 ай бұрын

No

Excellent video

@17:33 , is that drops of gold on the vraphite mold?

@sreetips

9 ай бұрын

Yes, tiny balls of pure gold. I sweep em up and save them.

When you are melting in the dish, is that second torch map gas or oxyacetelyne? Super cool looking bar, youtube community standards prevent me from saying what I saw there, but definately a small bust bar.

@sreetips

9 ай бұрын

Map gas

now, i want to see pure Gold Chloride crystals that were created due to natural evaporation. also, a gold electrolitic cell experiment, perhaps? And thank You for the experiment with lead on the last video - my curiosity is satied, but new ideas arise XD

@sreetips

9 ай бұрын

I just did the electrolytic gold cell a few months back. Used a titanium cathode. I’ll do another on evaporating to get those chloroauric acid crystals in a controlled evaporation. This one went too fast and got too hot.

Why did you add peroxide to the hydrochloric acid instead of nitric acid to form aqua regia like normal?

@dko916

9 ай бұрын

Same process solution as in the beginning. (I would guess)

@sreetips

9 ай бұрын

Because I didn’t think to use nitric,

Dear SREETIPS Why not use nitric acid instead of hydrogen peroxide to dissolve it?

@sreetips

9 ай бұрын

Because I didn’t think of it.

@user-cm9ok3dv2e

9 ай бұрын

@@sreetips thank you 😊

That gold bar kinda looks like a cassette tape with those two little dimples on it.

really enjoy that you take us on the experimental journey and not just on perfect roads. Have you ever thought of recording data points and doing analysis on the data?

@sreetips

9 ай бұрын

Use a computer.

What would happen if you took pure gold that needs to be refined and inquarted it with gold filled? Taking into account the ~3% gold from the gold filled

@sreetips

9 ай бұрын

I did it recently. Video posted maybe 6 or 8 months age. It didn’t do well. The gold crumbled to a powder during the nitric boils.

@mikew8214

9 ай бұрын

Thanks, I'll go watch it. Too bad it didn't work out too well.