You Sir are the Bob Ross of precious metals refining. I will never try the hobby, but I love watching a masterpiece's creation process. Great video, Thanks for sharing!

@sreetips

11 күн бұрын

Thank you!

@jimwednt1229

10 күн бұрын

Likewise! I have the unsettling premonition I would likely reduce myself to a skeleton on my first refining attempt ! 😬😅

@erickleven1712

8 күн бұрын

What Jim said. If I tried it, something would definitely explode. Doesn't matter if there's nothing that *should* react, it *would* react.

Well.. called that on the fine gold suspended in solution on the last video. 😅 If you’re precipitating gold from a very dirty solution, you really should use a fine filter to grab all of the precipitated gold, rinse it well and head right back to AR for a second refine. That gold will settle out of solution for days/weeks. Second thing, the reason why you don’t want to leave the fiberboard in for AR isn’t so much that it’s porous (it is) but that many boards have a copper layer sandwiched between the layers and chances are the acid won’t get all of it. What happens then is that the gold can cement out of solution onto that copper. Based on the color of the AR, there was plenty of base metal still in the fiberboard. Happy to see you using ferrous sulfate! I got into refining and learned how thanks to you and your videos, just melted up a 50 gram button from fingers and none of it would have been possible had I not stubbled across your channel a few years ago. Thank you for sharing!

I enjoyed this. I could tell this was 999 when the melted button solidified with no oxides forming on the finish. Well done sir!

@sreetips

11 күн бұрын

This button looks exceptional.

Thank you. MR. Sreetips. We wish you and the MRS. A belated happy and careful independence day & holiday weekend.

@sreetips

10 күн бұрын

Thank you!

Happy Fourth of July to you and your family! Thank you for helping our country remain free.

Now thats what i love most when whole batch is tackled..... Past video portions were small so whatever dissatisfaction i had is turned into full satisfaction from this full batch video.... Loved it

Something that might be of interest to you. You can take a 3 gallon bucket and drill small holes all over the bottom and about 4-6” up the side to make a sieve. Put all your boards in this bucket. Then fill a 5 gallon bucket deep enough to cover the sieve holes in the 3 gallon bucket. Then repeatedly dunk and swish the 3 gallon bucket in the 5 gallon outer bucket. The gold foils will pass through the sieve holes and collect in the outer bucket. You might have to drain and filter the outer bucket a couple of times to collect the foils, but you can use the same water over and over. Don’t make the sieve holes too big or the foils will be able to pass back in as easily as they passed out. 😊

@scrapman502

11 күн бұрын

I've done this several years ago. It works great doing large batches of fingers. I purchased two Halloween trick or treat buckets from Walmart, drilled hundreds of 1/8" holes in one bucket. and went to town on it. Only used it about 5 times though, as large batches of fingers are hard to find these days, I normally just rinse out as many fingers as I can from the solution using Water and the dump the fingers into a shallow bowl filled with water and pick out the boards one at a time with tweezers and inspect them. Any sticking gold gets sprayed off and then tossed out. Pretty much guarantees no gold gets left behind.

@sreetips

11 күн бұрын

That’s time consuming but effective. I may resort to pick and squirt for my next video. I’ve done that before.

I’ve tried adding aquaregia strait to the foils with boards after the nitric bath and found that indeed there was quite a bit of gold bearing ions that got absorbed into the wafer bards. Although it’s a pain in the ass, it is worth separating the board pieces before you hit it with the aquaregia for optimal outcome

@sreetips

11 күн бұрын

I’ll try that with the next batch.

Once you see a saturated solution like that, I’d recommend to decant, rinse, and put new water in and then add nitric. The acid has a harder and harder time working, thus slower reaction times and wasted costly nitric. Think of it like a big parking lot that’s empty at first with clean solution. The cars can all find parking spots easily as the majority are empty. As the solution gets full of base metals( parking spots filling up), less and less parking spots are available and the cars need to use more fuel and takes longer to find empty parking spots, thus slowing down reaction and requiring more nitric.

I came here for "specially prepared filter paper"

@nitr0junki3

11 күн бұрын

Same here. I really despise regularly prepared filter papers.

There's only one Sreetips! Good job.

What ever you do dont throw away those board pieces! Grind them up in a coffee grinder after they dry and run another couple hot hydrochloric rinses and press the liquid out under high pressure and you’ll find that there is indeed gold that was trapped in the boards

@markdavis1441

8 күн бұрын

Wow!

Oh hell yeah, Friday night Prime Time viewing. A little Heaven Hill Bottled in Bond and some Aqua Regia and I'm good.

@skinnywheelz

11 күн бұрын

I dont know why i read this comment in the Stoned Cold Steve Austin voice!😂😂

Senior: that blemish on the top looks almost like one of those mint mark/classification stamps you see on gold bullion. As always, you've put together an amazing presentation from start to finish!

Love that little indentation (beauty mark) that formed as it froze. Gives it a little extra numismatic value on top of the troy weight

Re: What's gonna be in the waste solutions? Copper? Yes, and comparatively speaking, LOTS of it, since the traces that get gold-plated are pure (or close enough) copper. Iron? Not impossible, but *highly* unlikely - Iron doesn't get used in any significant amount on circuit boards unless they include custom mounting hardware. The "cans" that some components are packaged, or transformer or ferrite cores would change that, but since you're working with cut-off edge connectors that have no components or mounting hardware, I doubt there's even enough iron to be detected, never mind measured, in your waste solutions (before you add the ferrous sulfate in the precipitation step, of course - Obviously, that's going to put iron into the "final waste"). Nickel? Even less likely than iron, and for the same reason - There's absolutely no useful reason to put nickel into the construction of a circuit board. About the only way it's going to be present is as an accidental contaminant. Tin? Yep, definitely gonna be some of that if there's even a speck of solder on the boards. Lead? Somewhere between "possibly" and "quite likely", depending on exactly how old the boards are and whether they're supposed to be meeting the relatively recent "lead free" standards. ("normal" solder typically = 37%/63% Sn/Pb, "Lead-free" solder = Sn/Ag/Cu, usually in unpublished, proprietary proportions that vary from source to source, with Sn/Cu nearly always being the largest part of the mix) Assuming you've got "certified lead free" boards (Newer than about 2006, if memory serves), there MAY actually be a trace amount of silver. Sorry to nitpick, but your repeated mention of iron and nickel in the waste solution(s) kicked my autism into high gear. From this refining, I'd expect you're going to have mainly copper, a reasonable chance of a small amount of tin, possibly some lead, an outside chance of a tiny amount of silver, and perhaps trace amounts of titanium. (WHAT??? TItanium? Yep - sourced from titanium dioxide - the usual pigment in any white screen-printing that might be present on the parts of the boards you're working with) (BTW - I use the same sound for my phone alarm - Wakes ya right up, don't it? :) )

@sreetips

11 күн бұрын

I will test the solution to see what’s in it. Copper in solution is blue. Iron in solution is yellow. Blue and yellow make green.

GREAT! I missed half of this after General Quarters was sounded. Spent the rest of the time at my duty station. :( *Brought back old memories.)

@sreetips

11 күн бұрын

That’s my wife’s ring tone on my cell phone!

@6000Chipmunks

11 күн бұрын

@@sreetips 😄

The Shine on That Button ✨️ 😍 🙌

@sreetips

11 күн бұрын

This one is exceptional.

Sreetips right when you said " rinse water " I blurted out " rinse acid " at the same time you corrected yourself! 🤣

My favorite part of these is Sreetips being 100% ready to show his mistakes. What if you used a baker’s cooling rack in a Pyrex casserole dish to spread out the fiberboard and let the gold flakes drop down. Maybe have some kid of vibration.

"Let me see your gold shine" - Project Pat

@skinnywheelz

11 күн бұрын

🤣🤣

Might be an idea after first separation and rinsing to pour the fingers into one if the ceramic dishes and remove those that are stripped already, then put everything else back into the beaker and give the solution more room to move, it''ll also reduce the weight a bit making it easier to handle. The main problem with recovery from circuit boards seems to be agitating them enough during the reaction as boiling doesn't seem to be as effective. You are a joy to watch though, I loved chemistry as a kid and this makes my inner scientist happy seeing these reactions.

It's always extra special when you're delighted with your result!😁

Awesome video ab beautiful gold button thanks for sharing sreetips

I want to drink this forbidden Orange Juice so bad

Happy 4th sreetips

Just got a job at a bullion exchange. The owner gave me a jar of 80s military electronics connectors . The assay ton shows great results. I think it was 14k plate heavy 3x

@sreetips

10 күн бұрын

I bought ten pounds of military grade gold plated connectors. I was able to recover 22 grams of pure gold from them.

You are welcome. A great production with a stunning result from the refine. Real fine! Thank you Sir!👍👍🤟

‏‪ 0:10 ‬‏ It looks interesting. I enjoyed this video. Very nice and skilled fisherman. I caught some fish♥️

You are my mentor. I'm still working on getting nitric acid, because I'm not a company, but after several years of being a faithful follower, I do feel confident that I should be somewhat successful when I start.

Wonderful video! ❤ the way you answer incorrect hypothesis. We use muriatic for etching. Looking forward to your next video.

Those 10,000 ml beakers are almost 240.00 each. I think learning to blow borosilicate glass is more profitable Mr. and Mrs. Sreetips! Thanks for the video Sir

@riverboat28

9 күн бұрын

Wish you'd do a mixed component recovery

I am always absolutely mesmerised and fascinated by your videos

@sreetips

6 күн бұрын

Thank you!

Made about 150 bucks on this one. Mostly academic. Less if you count the cost of electric, gas, and chemicals. Good video.

What if you incinerate the scrap, separate the ash, nitric the base metals and then aguaregia the gold

@Ferd414

11 күн бұрын

You'd get a nasty mass of glass fibers, a huge cloud of nasty black smoke, and a god-awful-hideous stench - Circuit boards since about the mid 70s are almost all a combination of fiberglass and phenolic resin. Incinerating them would be hideously nasty, and without a *MAJORLY HOT* fire, with LOTS of forced air or oxygen injection, the resulting smoke cloud would likely have the whole neighborhood calling the fire department.

@sreetips

11 күн бұрын

The fiberboard doesn’t burn down to ash very well

@Mrhalligan39

9 күн бұрын

@@sreetips Will it burn off at molten metal temperatures?

31:30 condition zebra will be set in minutes. General quarters routing is up and forward stbord and down and aft to port.

@sreetips

11 күн бұрын

You got it. That’s my wife’s ring tone.

watching this was fun until the 6 mim mark. Then the lights went out. now over an hour later, I can finish and blow out the candles.

Very nice work sreetips 👍

Much better when you do the nitric boils first thank you for sharing this wonderful video with us six stars sir

You can wash off most gold foil from fiber boadr cuts by rinsing them in a large pan of water through a coarse mesh sieve (about 5 to 10 mesh per inch). Then, for control washing of the fiber boards, you will need a solution of aqua regia of a much lower concentration. And the foils washed in the pan can be collected in the same filter for rinsing water.

A little less than midway through, i think the beaker of base-metal-dissolved could use some stirring, some physical agitation. In other finger-recovery videos I have seen, the last stubborn gold fingers needed at least a blast of dist water to come loose. I don't think a stirrer bar would work in there. Something like a lapidary tumbler, or something that would rotate the beaker at an inclined angle to tumble the boards. Except (hopefully) I don't think you'd need any added grit, just the boards rubbing on each other for an hour or two. I'm glad you did the straight-nitric dissolve first to isolate the gold. Good plan.

Good work team!

I know I have said it before, but I friggin love your channel. Maybe I should’ve been a chemist instead of an electrician.😂🧐❤

@sreetips

11 күн бұрын

I love this work. I can work alone, and the metals don’t talk back.

@melissaslate1621

11 күн бұрын

@@sreetips lol!!!! You got a good point there

Awesome happy Independence day 😊

Loving all the new big beakers and flasks. Maybe they are not new and im just now noticing them either way its an upgrade! Thank you

Been watching for a while. Always would have liked for you to do purity tests.

working hard man. Take care your health. Keep protection your hard job.

Minute details such as dissolving and removal of the base metals before dissolving and b removing the base metals first make quite the difference.

the analog clock in the timelapse is a nice touch

@sreetips

10 күн бұрын

Thank you

Also not sure if you’ve ever considered it for a video idea and or money saver; 1: take all your nitric solutions from the waste bins after all pms are recovered and filter. 2: allow the filtrate to evaporate and condense into crystals. 3: take a batch of the copper nitrate crystals and put them into a round bottom flask connected to a condenser and with an addition apparatus, slowly heat and add sulphuric acid. 4: the condensate will be concentrated nitric acid to use on future projects to save costs on low yielding materials, as well as easily recovering the copper sulphate waste and converting to copper metal.

I use this stuff to treat leftover acid from Karat refining. Coat the surface with acid, and leave it exposed to Air. In about a week it all flakes off. It can be rinsed with acid in between. It is better to coat the surface with acid, and let Air get to it, than to leave it submerged in acid.

@sreetips

9 күн бұрын

Nice

I'd be curious to see a follow up video on the filter gold and how much it weighs, something tells me you might be curious too!

@sreetips

11 күн бұрын

I am

62 👍's up sreetips thank you for sharing 🤗

you are my Teacher I learned from you alot thank you so much ❤❤❤

The one PITA about all this is washing all the dishes.😂

@sreetips

10 күн бұрын

For that, I wish I had an assistant.

I much prefer a good "taps taps lights out" over the ol' GQ alarm 😄

You Kicked the can Kev yeah I like those prices too

Great job 👍🏻

Very nice sir

Hey hey. Sorry I'm late, everyone.

@kyrebanorg9897

11 күн бұрын

do better next time bro. lol!

@troyrager1352

11 күн бұрын

Gaw, it's about time

@mcjdubpower

11 күн бұрын

Stay behind at the end. 😊

I'd like to see some consumer electronic scrap run through a ball mill until it's all a fine powder and then add hno3 until all base metals are dissolved then let that percolate out via iron. You can try to get gold from the scrap if you think it's worth it. Im mainly considering the copper from within multi layer boards and inside ics

I think gold corner bgas have more gold then gold fingers

I never realised America spells Sulphate as Sulfate. It's weird how spelling in the US evolved so separately.

I would love to see Aquaregia strait to the foils with boards and see how it works out...for shts and giggles.. Happy 4th from your biggest fan to the North (our holiday was a few days ago) Cheers eh

@TheLeadShed

11 күн бұрын

Nevermind, I kind of jumped the gun on that comment...Next time I'll wait till the video is done until I comment lol

Bahut acchi Jankari ji thankyou ji Sar ji🎉

@ 25:15 - why did you use Ferrous Sulfate instead of Sodium Metabisulfite? I’ve watched quite a few of your vids and never saw you use FeSO4.

@timvancourt7213

11 күн бұрын

Same here, I was scrolling through the comments to see if anyone said anything about it. I’ve always used sodium metabisulfite

@sreetips

11 күн бұрын

SMB could drop other metals, if present, and contaminate the gold. Ferrous sulfate precipitates all the gold and nothing but the gold. Ferrous sulfate is used when there are other metals in solution with the gold.

Beautiful lil button

VERY NICE VIDEO

This button represents a terabyte of data (that has passed through the gold when it was in the circuit board)

Do u think maybe the reason some gold fell out of solution during filtering because of the production of some ferrous sulphate from iron contamination and sulphuric acid maybe ?

@sreetips

11 күн бұрын

Who knows? Possibly.

crazy idea but when you boil the nitric from the gold solution I think you can distill it out by capturing the vapours and condense them

@sreetips

11 күн бұрын

I think you’re right.

All of that work and materials for a tiny bit of gold.

@sreetips

13 сағат бұрын

Getting pure gold, from any source, is never quick and easy.

Been enjoying the finger videos. Question, how about burning the fingers first? Some charcoal and an air source, should be able to melt all the metals, and get rid of the boards.

@sreetips

5 күн бұрын

The fiber board doesn’t burn well

Perfect 👍👍👍👏

Cut open a Cereal box and make yourself a big funnel ( duct tape to size) easy pour into big container. Leave the hole on the bottom big enough so they don't pile up and tip over 😮

@sreetips

10 күн бұрын

Use once, throw it away. Good idea.

Could the saturation cause the gold to come out while cooling down the acid?

@AndyGraceMedia

11 күн бұрын

Yes that's probably what's going on. Boiling down the solution to expel any last nitrate ions may force the solution to become fully saturated or slightly supersaturated when boiling depending on all sorts of variables, not limited to concentration, pressure and temperature. When the solution cools the change in enthalpy of the system may force some atomic Au to crash out, which in turn encourages the formation of microscopic crystals. That's the theory of thermodynamics anyway, but in practise it could be something else, but it''s a very good guess.

@Sauspreme

11 күн бұрын

​@@AndyGraceMedia oh nice! glad you think the same. I wasn't sure how all that worked, I just figured a solution can only hold so much solute, and it can hold a lot more when hot. So if you start cooling it down if it's at/near that max occupancy, it's gotta go somewhere right? :-P

@sreetips

11 күн бұрын

I don’t think there’s enough gold in solution for that to happen.

@Sauspreme

11 күн бұрын

​@@sreetips oh yeah, that's true! There really wasn't that much gold in solution.

@AndyGraceMedia

10 күн бұрын

@@sreetips Yeah did some rough calculations and looked up the molar concentration of gold chloride per mL of acid but it all hurt my brain too much. Think it's an order of magnitude too dilute.

have I already written that such material needs to be processed with the Chinese reagent Jin Chan" half an hour and gold in solution, nothing but gold.the reagent can be purchased on market places

that plastic stand for the nitric is sketchy af, i'd be nervous using that, a triangular gusset at the front to support the weight would make me a lot less nervous

Your videos are awesome. What made you get into refining? And does it take a while to aquire the scrap gold or can it be found pretty consistently?

@sreetips

5 күн бұрын

I had an intense desire to learn how to refine the scrap gold. We buy karat gold at local sales.

Great video as always. I use the Karter beakers at home here, but where do you buy those cool convex/concave? beaker cover glasses? I bought a set from Amazon but the heat of just boiling water shattered them. Thx!

@sreetips

11 күн бұрын

Those are oil warmers. Got them at the thrift store.

@donaldhoot7741

11 күн бұрын

@@sreetips Ah, thank you!

I would not have known without you telling me, so now I'm thinking this method is a real good loser too 30% or 70% recovery. I'm going back to your older video with the copper screen drain cleaner electric cell thingy. Maybe that's better than 70% recovery. 😊

Gud vid 💯💥

Hello Professor, I thank you very much for all the valuable information you provide. I am one of your followers. I ask you to provide a detailed explanation of reffining the metal iridium. think you sir.

@sreetips

10 күн бұрын

I do not have any experience with iridium.

@TaoufiqHalfaoui

10 күн бұрын

@@sreetips okey sir، Thank you very much for your response.

I wonder how many guys had flashbacks at the General Quarters alarm.

@sreetips

11 күн бұрын

That’s my wife’s rig tone on my phone

@Ferd414

11 күн бұрын

@@sreetips ROTFL!!! How fitting that SWMBO gets that tone! On mine, It's the ringtone/text message sound for my boss, and the "Hey, stupid! Something important needs doing!" timers/alarms on mine. :)

@sreetips

11 күн бұрын

I put her ring tone as red alert because I fear that she will need me if she’s in trouble.

@Ferd414

11 күн бұрын

@@sreetips Similar - For me "The boss" I spoke of is 85 years old, has been through multiple heart surgeries, and is *NEARLY* frail enough to qualify as a full-blown invalid.

Im willing to bet the missing 2 grams is in the filter

Wondering if it would be better to screen out and remove the pc boards just after most of the foils fall off?

@sreetips

11 күн бұрын

Probably

Gooooood evening from central Florida! Hope everyone has a great night!

@sreetips

11 күн бұрын

Goooood evening!

What a waste of time and expense to "extract" a tiny amount of gold. Actual time, cost of chemicals, cost of equipment, cost of electricity, The cost far outweighs the benefits.

Oh yeah, where can you buy those corelle casserole dishes?

@sreetips

9 күн бұрын

I get those at yard sales and estate sales.

Hello Kevin another awsome treatment of gold foils, I was wondering if it would be beneficial to treat the gold foils with hydrogen peroxide, instead of nitric acid. Also would it be easier to clean it up that way. Please don't think I am anyway trained, but it was purely out of curiosity and again thank you for another great video

@sreetips

11 күн бұрын

Nitric is faster

Great video i was wondering if with all the acids you used time etc did the 7 gr of gold make any money ? Take care keep on the good work 👌

@sreetips

10 күн бұрын

Gold is money. Gold is wealth. Paper dollars are a money substitute. If I immediately sold the recovered gold would I gain more paper dollars than I gave in trade for the fingers? No! I did convert the failing paper into highly valuable gold. But I should get back ten times what I paid. Which I will promptly convert into, you guessed it: GOLD!

44:00 eek I can see your reflection…..

Hiya professor Tips hope you and yours are well and another great film boss but I notice or didn't see you use sulfuric acid for lead removal is that because of the sulphate? And how you get on with the heat blocks for electric furnace I'm totally hooked on theses films very very good keep it up please

@sreetips

11 күн бұрын

I added some sulfuric for the second refining.

Maybe try a colander with small holes and you can just rinse with tap water and all you would get is gold foils

@sreetips

11 күн бұрын

Excellent suggestion.

If a solution becomes over saturated or too highly concentrated would it fall out by itself?

@sreetips

11 күн бұрын

Yes, I’ve seen that before. But there wasn’t enough gold in solution for that to happen.

I'm curious. Is there a reason you get rid of all except some traces of nitric acid before dissolving the gold? Does the chemistry have to be really precise?

@sreetips

11 күн бұрын

I’m trying to remove all traces of base metals that the nitric has in it. It’s those base metals in with the gold that causes problems.

hi there, friend, as always, absolutely loved you vid do you by any chance have a think about doing an experiment on modern day mlcc to see if they still contain platinum group metals

@sreetips

10 күн бұрын

I’ve got some that i ordered years ago. May have to break them out and make a video.

@kanedytham4597

10 күн бұрын

@sreetips thank you, friend. I appreciate you taking my idea into consideration. i really do appreciate it

What a beautiful button. Would have there been close to 3 grams in that filter paper? 👍🏻

@sreetips

10 күн бұрын

Some of it is in the filter, but I don’t think 3 grams.

You said in an earlier video that the cement copper from the waste was basically trash. Is it worth refining/cleaning to use in to cement your silver on?

@sreetips

11 күн бұрын

No

hi sreetips, great video. do you think the ferrous sulfate caused some of the problems of redissolving the gold. maybe different results than the SMB? I'm sure that question doesn't make any sense 🤪

@sreetips

8 күн бұрын

The gold came out of solution after I evaporated it down and before I filtered it and used ferrous sulfate to precipitate.