Karat Gold Refine With OTC Chemicals NO NITRIC

[@justabouthadit5872]

Mr Kevin, what amazes me more than any acid reaction, any precipitation, or any purity of gorgeous gold powder is your honesty and genuineness. In these days of videos flooding the internet with the sole purpose of deceiving viewers and people just wanting to make themselves appear special or skilled, here you are bringing REAL, HONEST content time and time again that's not just thoroughly informative and educational, it's very much exciting and incredibly wholesome. You Sir are one in a bilion, you're worth more than all the gold you've ever refined, you make the world a better place every day. You're truly an amazing individual, I hope you know that and never forget it. The entire internet says THANK YOU!!!!

[@sreetips]

Thank you, it’s statements like this that lift me up when I get discouraged. May God bless you for your kind words.

[@jimames8154]

@@sreetipsyou, sir, are a very talented and impressive man - congratulations to you on your skills and your communications ability... most entertaining as well...

[@sreetips]

Thank you

[@stoneylawson1727]

I've never been bored by any of your videos, that's for sure. Amazing information you share with everyone. I never got into chemistry as a younger man but sure find it interesting now. Thanks for all you share with us. You have no idea how much we all appreciate your classes on teaching us things we never knew how to do, and without your videos a whole lot of us would have never got a chance to learn any of it.

[@sirlancer23]

I have been watching your videos for a couple of years now and its basically the same thing every time processing scrap gold/silver into pure gold/silver yet I am still fascinated and look forward to your videos every time.

[@buckwildebeest398]

He evolved. He gets better equipment, finds new and better processes. He talks to the audience, and keeps refining his refining techniques. Repetition helps drill it into my head, so I have a harder time forgetting. It never gets old for me, either. Almost like 50 First Dates, because I've got CRS.

[@jasonwilliam2125]

This channel gets better and better. No way this was done because of lack of available materials , i would suggest this video was made solely for our benefit and to give options to people who struggle to get chemicals. What a great way to share with us and help out . Highly recommended.

[@offgrid-j5c]

You are exactly right. He knows how hard it is to get clean strong chemicals in Canada and the USA. Here it is easier to buy a gun than get nitric acid,, and we are very strict on guns,, ( i disagree with those laws, btw)

[@AlabamaBedrock]

With the struggle I had getting nitric, you'll never know how helpful this video was. More time, but good results. Thank you and keep up the good work.

[@AlabamaBedrock]

@@birddog0 very true but the shipping cost at times can be almost as high as the acid it self

[@MasterArt115]

I've been absorbing, learning from and watching every video you've posted for little over five years now but this is the first time I'll be reaching out and leaving a comment on one of your many videos. Thank you so much for everything you do and the knowledge and patience and time you take to walk us through not only your step by step procedures but also your thought process and reasoning behind why you're doing what you're doing. As a Canadian I am only saddened by the many missed opportunities I've had to endure on being excluded from purchasing one of your expertly refined and poured bars. Thanks again for the countless hours of valuable knowledge. Best Regards

[@sreetips]

They don’t cover shipments outside the USA. So I could end up losing the gold and the payment for the gold in a dispute. Not to imply that you would do such a thing.

[@MasterArt115]

@@sreetips I completely understand - however if you made an exception next time you pour a bar I would sign away rights to any damages claim, complete the transaction with a wire transfer or crypto (digital gold) as well as cover the difference for UPS shipping door to door all for one of your coveted "streetips" stamped poured bars :)

[@timsexton]

That is fantastic where the gold solution changes from Orange Crush, to lemonade, to clear, and finally dark & stormy - all in a manner of about a minute. Great job, SREETIPS !!

[@Jaapio777]

Everytime I see a new Sreetips video it makes my day. Always interesting stuff to watch, and by far the best refining videos out there. Thanks man, for making my day once again.

[@ChannonWW2214]

I agree , he puts out some of the best videos very informative and right to the point.

[@billyjackcurtis4680]

The level of satisfaction i get from watching a master at work is no less then if I watched Picasso or DaVinci in their prime. Thank you.

[@MarkMarvin1983]

I liked this type of extraction because it had no nitric acid. And near the end you could see how clear the solution was. It also seems safer to dispose of as well. Nice job!!

[@jamesway5036]

It is nice to know there are other chemicals and acids that can be used in the refining of precious metals. When every dollar needs to be stretched a little bit more, this will help someone tremendously. One of these days, or years, I will watch your videos to go through the process. Thank you.

[@JamesAnderson-nz1ro]

I never get tired of watching the SMB reaction. I love to see the first spoonful going in and seeing that instant color change .👍👍

[@ponderinglife5582]

I’m completely mesmerized. Makes me want to take a class. I about died when I saw the final gold piece. You make it look very easy. I want to try but I am so intimidated.

[@sreetips]

I don’t think that there are classes for refining. And most refiners would rather take their secrets to the grave than share with the masses. I exploit this to have a successful channel. But it makes me a bit of an outcast in the refining community. If I need help then most professional refiners wouldn’t touch me with a ten foot pole. Because they know that anything revealed to me would end up on my channel. As a result I’m completely on my own and completely self-taught. With a little help from those on the goldrefiningforum.com

[@chiraldude]

Excellent tutorial for using over the counter chemicals for refining. So many people live where nitric acid is illegal.

[@peterhawkins4612]

I’m glad you are on the right side of the law. I dread to think what a man with your talents could produce.

[@FrostyBoom38]

Man... Sreetips... I wish I would have found your channel when I was in my college gen chem courses... Might have passed! The little that I did retain makes so much more sense watching you do this! Thanks for the cool video!

[@burriedhistory]

Great to see how well the OTC chemicals only worked on this refining 👏👏👏

[@fredrichardson9761]

Wonderful to see this great refining video! Another outstanding bar as well - your pouring technique is top notch. It looked like maybe there were a lot of gold nano particles going over into the waste container after the first to precipitations? But then I just can't imagine your loss is all that high (and of course you recover everything eventually). Great work and great video - I envy the person who ends up with that awesome bar! 👍

[@TroubledOnePaydirt]

Chemistry is just fascinating. The gas bubbler contraption is amazing.

[@Alondro77]

I did a small test run with the HCl-bleach method to dissolve gold foils, and that worked very well too. Precipitation with SMB was complete and quick. I will be using sulfuric for IC chips, as they can have silver, gold, platinum, and palladium. Sulfuric helps split up those metals. But, the sulfuric needs to be poured off while still hot or else the silver sulfate will start precipitating if it exceeds the solubility limit at room temp. Sulfuric acid at 96C holds 4X the mass of silver as acid at 24C.

[@sreetips]

An important refining nugget - good to know.

[@bbbruh8809]

Interesting, how do you separate palladium and platinum from the sulfuric acid though? Please share I d like to know.

[@sreetips]

I don’t like working with sulfuric acid. It’s gooey, gets all over everything, and causes problems with waste treatment.

[@Tonz_of_Fun]

So I have a question/suggestion. From your various refinings and the calculations of estimated yields; do you keep track of the missing percentage to see how much you get back after a waste bucket treatment? It might just be me but I'd be interested in seeing total approximate loss to the bucket and then the recovered yield from the bucket.

[@sreetips]

Since I only refine my own material I don’t keep track because I know that I can get it back from my waste container

[@miniatureshipyard]

Awesome way to show a different approach to refining without nitric as shipping costs have skyrocketed 👍 kudos

[@matthewcurry3565]

Nice video friend. I just figured this method as well. I also realized not long ago that it is the SO2 reducing the metallic ions in solution, and not necessarily the SMB, or it's elements. SMB's oxidation to SO2 into SO2 oxidation, thus reduction of metallic ions for precipitation. Just wanted to mention it would be AMAZING to get some formula ratios for acid needed per weight of material. I also just got one of those 4000ml flasks which is ironic as well. As always great job!

[@stevezozuk9622]

That good sir is absolutely beautiful material. I love watching the entire process , it's simply mesmerizing. You really do a great job , and you are a great teacher. Mostly I loved how you changed up the processes. The results are, as you put it simply stunning color. Thanks for the great show today. I think you should be very proud of yourself on this one.

[@beebob1279]

So cool. I've never been great at a chemistry but I can actually follow along with what you did. I do notice you have a hood to vent the gasses out of the room. I remember this from chemistry class in 1980 and the chemistry teachers' reason for doing so.

[@andybaldman]

You’d be dead without a hood.

[@beauhodges7957]

Video definitely shows how dangerous sulfuric acid can be, the importance of a fume hood, and the efficiency of nitric. Thanks Sreetips, have a good one!

[@alexamd]

это не азотная кислота,а концентрированная СЕРНАЯ 93%

[@sreetips]

I couldn’t believe how well it worked.

[@beauhodges7957]

@@sreetips it did work well. I'm excited to see how you utilize this new methodology in the future.

[@sreetips]

It’s takes much longer. It’s more dangerous. The silver is more difficult to recover. And it makes a lot more waste that must be treated before disposal. But at least I know that I can use it in a pinch.

[@josephpecoul6532]

This is amazing to me I would like to thank you Sreetips for letting us follow you along

[@peppenapoli6764]

Buy the way I watch all your videos again and again and really appreciate you sharing your hard earned knowledge

[@sreetips]

Thank you

[@jasonrickus4080]

Great information. Just getting started in the gold recovery process. I have about 20 lbs of circuit boards and am gathering the necessary tools needed to do so. I like how you incorporate everything into a video. Good or bad. Nice to see if a mistake is made and how to fix it

[@bbbruh8809]

Could you make so videos on circuit board gold recovery please?

[@sreetips]

The amount of gold is very low, and the waste is high. So I don’t refine very much escrap these days.

[@bbbruh8809]

​@@sreetipsOh that's kinda shame but I understand. So if I were to use this process with concentrated sulfuric acid on IC chips it should work because there are no metals present other then copper, gold, maybe some silver. But now that I think about it would tin presence harm the reaction in any way? And if so how to get rid of it? How would this process work with tantalum capacitors? Edit: Scratch that thats stupid idea. Tantalum can't be refined like this. How about palladium from mlccs or other capacitors? How would you precipitate the palladium out of the solution? I enjoy your videos because I'd like to start doing metal recovery as well, but I don't have any experience in this field except for basic anorganic chemistry (school stuff) So any info is greatly appreciated 👍

[@rtchow3000]

hello again sreetips, i watched this video refine gold using OTC chemicals without nitric. with a lot of patience, there were 59 steps I wrote down so I can try to repeat your gold recovery for jewelry and nuggets. the more I watched your video, the more insight I gleam from it. i feel a lot safer now instead of using nitric acid. by the way, the O'Reilly auto store sells concentrate sulfuric acid for car batteries for only $13.75 it comes in a cardboard box but in a plastic bag container. thanks for your hard work.

[@sreetips]

Boiling sulfuric is very dangerous - will go to the bone if it gets on you. And not right away.

[@andyrobinson450]

One of the best channels on KZbin by far!

[@julianmarsh2758]

Also, how is HCl + H202 dissolving gold, is it the heat or the absence of base metals, a bit confused as HCl + H202 is the RAM finger strip that doesn't dissolve gold. Thanks for your time as you always answer and all the best Mr Sreetips.

[@sreetips]

It confused me also. Bubbling A/P cold won’t put gold in solution. But add lots of heat and it will dissolve gold.

[@julianmarsh2758]

@@sreetips You are one kind, proffesional guy, If ever I'm in the States again I'll send you and your wife a gift...thanks, keep making these videos.

[@MikeGervasi]

Going backwards now. The gas really does make the gold pop. Funny bit is I'm sitting on thousands of gallons of all these chems here at work and all the lab gear. Only thing I DON'T have is a fume hood. Out of all the chems here room temp Sulfuric 93% gets my respect the most. It seems to find you and you only notice later when your jeans grow holes :)

[@igorbudzinski5008]

You’re the best so far what i watched on you tube, very explanatory A1 to you and just very understandable,thank you

[@arnedalbakk6315]

I get offer a place in chemical scool 40 year ago..... I regret that i say No. But thats life. Thanks fore all i have learn in this canel. Take care sir😊👍

[@sreetips]

I’m a retired Navy Engineer. I have a Bachelors in Aviation. I took a chemistry class in high school almost 50 years ago - got a “D” - you don’t need a degree in chemistry to be able to refine precious metals.

[@arnedalbakk6315]

Ok. That was interesting to hear. In Norway i think it very strikt to by many of your chemical you using to refining the gold. It is a shame, but i can understand it. Strong and dangeres in Rong hands😊 Thanks fore sharing whit me.

[@buggsy5]

Have you considered using a closed system and nitric acid - so you could recover the NO2 and reconvert it back to nitric acid? It would eliminate discharging all that NO2 into the atmosphere.

[@sreetips]

No, I haven’t. But it’s not a bad idea.

[@buggsy5]

@@sreetips Here are the relevant formulas: 4 NO2 + 2 H2O → 2 HNO3 + NO + NO2 + H2O So the net reaction is 3 NO2 + H2O → 2 HNO3 + NO The nitric oxide is reoxidized by the oxygen in air (or an O2 feed) to produce additional nitrogen dioxide. Note that water is used up in the reaction. Some will come over during the nitration, but more will probably be necessary. By bubbling NO2 through hydrogen peroxide, the yield is better. 2 NO2 + H2O2 → 2 HNO3 NO + H2O2 → NO2 + H2O All this can be done at ambient pressure, so there is no risk of blowing up your equipment. You may have to control the reaction vessel temperature. Since you use incremental additions of nitric acid for nitrations, the water formed with the H2O2 process shouldn't be any problem.

[@michaelsullivan479]

Answered in the same video, needed to watch to the end. Thanks!

[@LOT9T]

Scholar of the craft! Pleasure to watch, learn, and be instructed by kind sir.

[@allentruitt8632]

I like how this process broke the gold down immediately into a slush. But I feel like you skipped steps to ensure maximum yield. I know you'll get it later, but...I'm also curious if this different combination of extraction effects your later silver extraction?

[@whiskeytangofoxtrot5057]

when the spoon went in all i could hear in my head is the wicked witch of the west screaming "Im Meltingggg, Meltinggggg"

[@sreetips]

Made me think of Terminator 2

[@guygordon2780]

Wow, that 3rd gold solution was beautiful -- and so clean. It really shows off why you go to the trouble of refining it 3 times. Triple points for using 3 different methods to drop the gold. Man, those impurities don't stand a chance in hell.

[@Rob337_aka_CancelProof]

In a pinch I made a dripping apparatus a little different from yours because I don't have anything like that but I used a piece of aquarium tubing that you would use for a bubbler and after starting a siphon I tied a knot in it and just simply loosen the knot for a faster drip and tighten the knot for a slower one

[@patrickmorrissey2271]

@ 9:32 "That's spooky lookin'"... Yeah, no kidding... I was like, whoa....

[@guygordon2780]

Too bad he didn't release this on Halloween. :-)

[@josephpecoul6532]

43:20 then where the heck was the gold in that time it want clear man? That was suprising to say the least.

[@sreetips]

?

[@josephpecoul6532]

@@sreetips it makes me love it even more when I struggle to understand. Amazing.

[@guygordon2780]

The yellow solution ChloroAuric Acid. The yellow color comes from gold ions surrounded by chloride anions in solution. It is just a happy coincidence that it has a golden-yellow color. The color of dissolved ions has nothing to do with the color of the metal. Many copper ions are blue and nickel ions green. Color is created by the electrons in the chemical absorbing specific wavelengths of light. When the SO2 displaces some of the chloride ions it creates a new gold complex, one that has no color. The nucleus of the gold atom does not interact with visible light. In the X-ray spectrum you can 'see' the gold.

[@josephpecoul6532]

@@guygordon2780 ok I understand so its a light Spectrum thing ??? Cool you know I didn't do so well in school and. Totally got robbed with my education here in south Mississippi a very rural community and my peers only show me how to brew shine but told me nothing about the Chemistry it wasn't until later I got a little. Education on what would really taking place . But that doesn't negate the fact that I'm very curious I appreciate you taking the time to explain that to me and it does make sense thank you Guy.

[@guygordon2780]

@@josephpecoul6532 Ouch. I feel for you, bro. I was quite lucky on the education front in the upper mid-west, though understand things have gone downhill a bit since I was in school. But the very best education is constant curiosity and learning.

[@timhull8664]

Cool necklace, and a nice way of extracting the gold.

[@360Vacation2]

Fantastic work! I really enjoyed watching this one. Thank you Streetips!!

[@sreetips]

Excellent!

[@robertsletten7466]

The SMB 'flash over' is always my Fav. part

[@allrightenergy]

Hi Kevin, I was wondering. Normally we put the metals at the bottom, and using pure sulfuric the silver can go into solution. Then I noticed that you did a test using dilute HCL and the Silver-Chloride fell straight to the bottom, where if it covered the metals the chemical process would be stalled. So, I am thinking a solution may be to use a taller beaker and using some glass mesh material to hold the metals up high, then the use of other HCL and H2O might be useful to speed up the process. ???

[@sreetips]

Nice!

[@excitedbox5705]

SO2 gas is better because it keeps impurities out of your reaction flask. The fine gold nanoparticles it produces are also great for any chemical reaction that uses gold because the high surface area will make it super potent as a catalyst. Any time you can use a gas you will get a superior product.

[@matthewcurry3565]

Would you mind sharing the impurities that may be present in SMB to SO2's reaction?

[@sreetips]

I don’t know those impurities

[@MrKotBonifacy]

@@matthewcurry3565 Matthew, that SMB sold as "stump remover" is about 98% pure, that's what I've found - In other words, it falls into "industrial grade reagent" category. In industrial chemical processes purity isn't of great importance, so one would be hard pressed to find a list of specific impurities present there. It just doesn't matter, that's it - as long as it removes sumps, who cares? Same when you make soap - it doesn't matter whether NaOH is 99.9% pure or just 97-99% pure - and it neither it matters whether the impurities are NaCl or Na2CO3 or KOH. Or when you're making artificial fertilisers, it doesn't matter whether HNO3 used there is really pure or whether it contains some iron or zinc in it. (Although in case of nitric acid that "industrial grade" is very close in purity to "reagent grade" HNO3, while costing a tenth of the price of the latter, at least "here, where I live" - but I digress here.) Anyway, if you want to know specific impurities (and their amounts) for a given reagent you'd have to look for analytical grade purity, ("p.a.") because only for those reagents there's a specific list of impurities (and their amounts) listed on the label. Even for regular lab reagents, referred to as "pure" (abbreviated "p.", like in "HNO3 p.") impurities are not normally listed. Well, at least that's my experience.

[@matthewcurry3565]

@@MrKotBonifacy alright alright. Thank you for the actual in depth answer on this. So, when their safety data sheet says 100% it is actually around 97-98%? Where did you find that out if you don't mind me asking? I'm curious on seeing basically all data in general for fun haha

[@MrKotBonifacy]

@@matthewcurry3565 Glad you appreciated my efforts to clarify the matter. Now, I do not know much about this "version" of SMB sold as a "stump remover" and I never saw SMB safety data sheet. That "98%" figure I saw on Wikipedia (the entry "Sodium metabisulfite" section "Uses") while I was trying to clarify that "meta- / -pyro- / bi- / -sulphites / -sulphates" mess (there are few of those compounds with similarly sounding names but different properties). What I know for fact, however, is that the "technical/ industrial grade" reagents are never really pure, and that's why you normally don't use them in the lab (unless it is a drain opener from a local hardware shop used to unblock clogged drain ;-) Anyway, doing that "trick" with releasing SO2 from SMB with strong acid and then using that SO2 to precipitate gold leaves all eventual impurities behind, away from the precipitated gold. My guess is those impurities would be mainly by-products of the synthesis, i.e. "other" sulphites, sulphates and thiosulphate, plus what came into the synthesis with industrial grade caustic soda (NaOH). I just found a page of PanReac AppliChem (I'm not pasting link here as I suspect YT of blocking comments with links, but you can easily google it), and it says for technical grade of NaOH the impurities are as follow: Insoluble matter in H2O: 0.05 % Chloride (Cl): 0.01% Sulfate (SO4): 0.01% Heavy metals (as Pb): 0.005% As: 0.0003 % Fe: 0.005 % For SMB (they use the name Sodium Disulfite) there's a data sheet only for "pure" and "pure for analysis" grades. For "pure" the impurities are: Insoluble matter in H2O: 0.025 % Chloride (Cl): 0.02% Residual solvents (Ph.Eur/USP): passes test Thiosulfate (BP): passes test Thiosulfate (S2O3): 0.05% Fe: 0.002 % OK. 'nuff on it. Cheers.

[@jeffharp3814]

I really enjoy watching your videos. They are very interesting. I tried refining some gold twice following the video you made and my glassware keeps breaking in the process. The glassware is Pyrex and I follow along step by step. By chance do you have any ideas why the Pyrex is breaking and pouring everywhere? Thank you for your time.

[@sreetips]

Pyrex is tough but it’s not bullet proof. I recently set one of my beakers dry on a hot surface. It was only on there dry for as long as it took for me to reach and get my bottle of acid. As I poured in the cold acid I heard the beaker crack. But this is rare. I’ve never had a beaker break into pieces. You must be doing something to over stress the glass with too much heat or direct flame.

[@piloulefarceur8534]

12:30. "Our gold down there looks......like inquarted gold that's been parted with a acid !" Made my morning, thanks !

[@scrappydoo7887]

I honestly didn't know you could do that with sulfuric 👍 Excellent information sreetips, thank you

[@buggsy5]

The Inquartation method is a standard process, although nitric acid is usually used instead of sulfuric. The major shortcoming of not using nitric is the long processing times, which tend to increase the percentage of micro/nano particles of gold that can be lost in the acid replenishment and wash/filtering steps. If steps are taken for waste recovery, as Sreetips does, then this loss is less of a concern.

[@robertoescobar007]

A real Gold Gurú!! My respect Sir. I really enjoyed and learned. 🙌👏👏👏

[@gossman75]

Seems like the suferic acid is more dangerous than the Nitric Acid and personally it's harder to get rid of the silver as it seems to be making some sort of white powder at the bottom.

[@ousley421]

This is my new favorite method of refinement, peroxide rules. Iron removal is a pain but no nitric is great...

[@chasingcapsaicin]

When it goes clear, can it be left in that state. If so it adds credence to kings water being used to hide the gold from an invading force. I was told growing up it was aqua regia and that never made any sense to me.

[@ChannonWW2214]

Wow that was another great video St, so much information and just so easy to watch I couldn't even step away and I didn't even realize how long the video was and it was over great job..👍🤔😄🥃

[@offgrid-j5c]

I put some computer finger connections in 50ml Hydrocloric and 10ml 25% h2o224 hours ago. 60% of the flakes have released already. I made the 25% h2o2 from 3% stuff, So far so good! Thanks

[@GeezerTuber]

Why is the H2SO4 still turning blue? It seems you have gotten rid of the silver but there's still some other contamination(Cu?). CuSO4 is pretty colorful so I'm sure there's not much, but shouldn't you wash with H2SO4 until it stays clear? Your solution went green when you added the HCl. That seems like CuCl2.

[@sreetips]

Good observation. I thought the same. But apparently the sulfuric gets the silver out and leaves some copper behind.

[@markpennella]

Outstanding video! You went above and beyond!

[@matthewcurry3565]

Wanted to also ask; have you ever tried, or looked into peracetic acid? If you like H2O2 I'd look into it a bit. Very explosive apparently, but works in the cold, and seems to eat everything reactive including Cu, but your royal metals (It will eat Ag, but if you know you have a lot of other metals it may come in handy). Then you can do whatever like here using sulfuric to get the silver out, then refine with AP route as usual.

[@JamesSkellington-xj8nn]

Really like this method I bet it is a lot cheaper than traditional as well , 👍👍

[@candyvic63]

I live your videos! They are so informative. I love Gold ❤

[@sreetips]

GOLD!

[@hernandovasquez1801]

Every time I see one of your videos I advance in my knowlege of refining gold. I highly appreciated thanks. I am working in a refining job which is very similar to this video, I wondering if I could use copper instead of silver and if I would get the same results? Thank you.

[@sreetips]

I’ve not tried copper with this experiment.

[@MrKotBonifacy]

That reaction, or rather "the stage of the reaction" at 42:45 really surprised me - it reminds me of Wile Coyote that overrun a cliff, and "hangs" in the air, surprised, for a couple of seconds - before gravity decides to pull him down... Any idea what's happening there? Looks like there isn't any chloroauric anions in solution any longer, yet the gold SOMEHOW still remains dissolved...?

[@sreetips]

It’s a phenomenon

[@tonyquark493]

Obviously not as efficient and effective as nitric, but the end result is the same and less cleanup. Interesting. . . Great video as always!

[@pubbvp]

When you pour the metal from the crucible to the water, the drops are quite thick. Would it be a good idea to grind the alloy in order to have much smaller parts. IMHO, this is likely to increase the surface where the boiling sulfuric acid can attack the metal. It could maybe reduce the time needed to dissolve the silver and other base metals. Is this a good idea?

[@sreetips]

Even if it takes longer, I’d rather let the chemicals do all that work.

[@vossierebel]

Simply beautiful... process and result!

[@derekharden8922]

Can you use this same method for making the solution to grow your pure silver crystals 🤔 If so that would be a good idea for a video I would like to see how that would be made.

[@sreetips]

No, silver nitrate is the electrolyte for the silver cell. It can only be made by dissolving silver in nitric acid.

[@cwtrain]

My disappointment that you didn't marker "SREETIPS" onto the masking tape is immeasurable.

[@sreetips]

I’ll do better next time

[@MetsanAsukas]

I immediately thought the same thing haha

[@HellHoundOne]

😂😂😂😂

[@thebhut3446]

I'm telling you I'd buy "SREETIPS" brand lab and corning ware, chemicals, tape etc Absolutely!

[@Mrpyrite]

😂😂😂

[@Ziegen-Sauger]

Thank you, Mr., Sreetips. I am probing alternatives for the recovery steps. Most of my source falls under the computer eWaste umbrella. Rarely i get some gold-filled scrap when I have a super cheap offer. My challenge is to use Nitric in the recovery is getting economically unviable for me now that my hobby has gotten serious. I am using Sodium Nitrate more for the first refine step as well and trying to eliminate completely the use of Nitric before the second refine step. The issue is the high proportion of Silver in eWaste and scrap jewelry. I gave up on refining Silver, I just keep Silver containing droppings (in any form of salt or elemental) in a special container for later recovery when the volume justifies so. Killing base metals with HCl, with HCl/diluted H2O2 has been effective to me .... except when the Silver amount is enough to kill me. I have an exceptionally large amount of Lab-grade ultra-pure Sulfuric acid (one day I tell the tale why), that might be an alternative for me. I use it mostly when I have a large volume of integrated circuits and I want to get too wet etch them. Even though the waste volume when using Sulfuric is enormous for me, I will likely try one time to probe to see if my ops cost keeps low.

[@alexamd]

используй АММИАК, и медь с серебром уйдут в раствор,а фульминат золота перерастворяй промыв дисцилятом( неоставляй сохнуть! взрыв)

[@DonnyHooterHoot]

Now you have your very own jeweler's "scrap". Great video!

[@rocky-bk5me]

Its cool to see other ways of doing things and what to watch out for but i don’t like how this method leaves the precipitated gold so loosely powdered and non clumping and how it tended to go back into solution after smb process

[@AndyShive]

I'm a new refiner and your videos are great I'm having some trouble starting out though

[@sreetips]

My advice; get a fume hood first. I ignored this for my first year. Refined in my back yard. Today I have impaired lung function because I ignored this critical piece of equipment. No way to safely do these reactions without a fume hood.

[@999.9fine]

This may sound impatient of me even naive to the science but I wanted to know why the multiple boils could you not just do one boil with the total amount of acid used or is it due to the softening breaking down process of the silver from gold that needs the multiple boils ? great video as always 👍🏻

[@sreetips]

Fresh acid works faster than acid that’s already reacted.

[@999.9fine]

@@sreetipsthat’s something new I’ve learned thank you for sharing that, you do some great honest work thank you 🙏

[@sreetips]

Thank you

[@fatcat0915]

welcome back thought you where gone for good

[@imnobody0034]

Something you could do, you've got a vacuum filter, after you've precipitated the gold out of solution you could stick a paper filter in the vacuum and drain the wash off. Then burn the filter, when you melt the sludge.

[@arnedalbakk6315]

It is many ways to Rome, some of them are short, some of them are Long. This was a longe way. Exelent woork my friend😊👍

[@bentationfunkiloglio]

Pretty gold! Lot of effort extracting it.

[@Rob337_aka_CancelProof]

If I'm not mistaken if you were to add sodium chloride regular uniodized table salt or something like the pink Himalayan sea salt you end up with hydrochloric acid

[@TechneMoira]

very nice little gold bar, nicest yet :) too bad we in Europe can't buy one from you. On a separate note, I'd say it's pretty neat of you to show there are alternative ways to refining gold than the "classic" nitric acid method

[@jimcoppa6946]

Wow that's beautiful jewelry I would buy that all day long you should really think about making high quality jewelry you have the talent to do so

[@sreetips]

Excellent, thank you

[@alexej01]

That SO2 precipitation is my favourite reaction. Does anyone know what exactly is going on there? Why is the solution turning colourless?

[@sreetips]

This has been my experience: it only happens when the solution is very dilute, roughly 20 grams of pure gold dissolved in one liter of solution.

[@Rob337_aka_CancelProof]

One thing I have noticed playing around with the sulfuric acid is there's really no need to heat it so no hot plate required

[@sreetips]

I had to get mine real hot because I dissolve the silver.

[@randallgood9840]

Hi Sreetips. I love watching your videos. Have you ever tried inquarting karat gold with copper and using HCl and peroxide to dissolve all the base metals, leaving brown sponge gold to refine?

[@sreetips]

No

[@stevezozuk9622]

i should have watched until the end before commenting the first time lolol. That is a beautiful set you made with the bar and earrings nice touch.

[@11THEFEZMAN11]

I was just thinking about this type of project this morning, I have a 18k necklace I need to refine to 24k so I can use the gold to fume glass for Christmas ornaments

[@GeoffBosco]

This is gonna be one of those, "this idea is so obvious, there must be a good reason why nobody does it," kinda thangs. But, ever since I heard you say inquarting gold with copper is a perfectly good alternative to silver, it got me thinking: Other than extra time would it be practical to use copper ii chloride to dissolve the copper from the CU AU alloy?

[@sreetips]

I don’t know if it has the punch. But I’ve never tried it

[@GeoffBosco]

@@sreetips Gotcha. Thanks for the quick reply!

[@matthewcurry3565]

@@GeoffBosco Did you mean silver (II) chloride? I wouldn't think Copper chloride would do much to copper... -He also suggests AG inquarting to save resources. Copper's weight, and density is high so it eats up more acid to consume.

[@GeoffBosco]

@@matthewcurry3565 No I meant Copper (II) Chloride I just forgot the correct convention for writing it. If I want to recover gold foils from a ram stick I pulled out of an old PC I’ll put the trimmed ram “fingers” in a beaker then add HCL and a drop of H2O2. That will be just enough to dissolve a little bit of CU which will produce CU(II)CL which will in turn dissolve the rest of the base metal (including copper) that attach the gold foils to the fingers. This is a pretty standard process in recovering PMs from scrap electronics. I was just curious as to why CU(II)CL isn’t used by refiners in their processes. Especially if they’re looking to avoid Nitric acid.

[@matthewcurry3565]

@@GeoffBosco Are you meaning why they don't use a "softer", or more delicate balanced version of AP to get the base metals into solution as chlorides? - A redox reaction occurs. Based on standard electrode potential of chlorine and hydrogen peroxide, chloride ion will be oxidised by H2O2 to form chlorine gas. However, water produced from reduction of H2O2 will react will chlorine gas to form HCl and HOCl. The chlorine ion(s) is/are doing that job to make copper reduced to chloride.... Not copper chloride to eat more copper to chloride. You can use AP of course, but those ions potentially can grab gold. You'd just need to do test to make sure you aren't going to far I'd assume.

[@bkm83442]

So you pulled all the silver out of the gold, but what about the copper? Doesn't the green color indicate that other metals are still there? Copper doesn't dissolve well in sulfuric, it usually requires nitric acid to dissolve, doesn't it?

[@sreetips]

Nitric acid is expensive and hard to get for some folks. My goal was to demonstrate that karat gold can be refined into high purity gold without using any nitric acid.

[@virgisst761]

Good video. Just let me know if all this process works without heating??? Sure it would take much much longer but important to know if muriatis and hydrogen peroxide so as sulfuric acid will do the job without heating

[@sreetips]

Heat is crucial and necessary. I don’t either would work without heat.

[@mikeshaw201118]

Mr Tips. Can you tutor my daughter on neat hand writing please ? You have the neatest hand writing I have seen in a long time. I guess it is a generational thing ? I did like the video though

[@theaussienurseflipper.8113]

It's very difficult to get sulfuric acid here in Australia. Funny they have on the shelf in car parts shop, but U have to buy motor bike battery to get it. As those battery come dry. I don't think U can get that drain cleaner ever. I was thinking if I got old car battery filtered the acid out and after boil it, would that make it concentrate and 2ns would it be dangerous? Cheers Graham

[@sreetips]

I think it would work, but I’ve never tried it.

[@carlsmith2826]

Love watching your shows.

[@darrellb6583]

Just thought of something. If you keep getting contaminants check that your stir sticks not wore out / pinhole in it. I imagine that would contaminate. I'm probably 20 hours into your videos, I have been collecting junk gold every now and then think I'll be ready in a few months.

[@korpse6rinder]

Looked like more gold powder in your waste container than in your current project. Lol. Do you use electrolytic refining on your copper waste?

[@TheGreatest1974]

When the gold looks just like mud it amazes me how it changes to shining pure gold once heated.

[@joshuahankey]

Hi there, thank you for your videos, they are very helpful! I had question regarding the inquartation sulfuric acid step. Could you skip this step and immediately treat the karat gold with boiling HCL and H2O2 and precipitate with sodium metabisulfite? The sulfuric acid boils just seem very time intensive, and I couldn't think of a reason the H2O2 method wouldn't work right off the bat. Thank you!

[@sreetips]

Removing base metals first is the easier softer way. Trying to dissolve the karat gold with H2O2 and hcl would put EVERYTHING in solution. Making a very dirty solution. Making recovery of the gold difficult. Leading to loss of metal.

[@frankmorris7003]

This may sound stupid question but I'm to ask for the sake of curiosity! The question being can precious metals from catalytic converters be recovered and refined with strictly just the use of OTC chemicals????

[@sreetips]

I think- maybe. Bleach and HCl to leach. HCl and hydrogen peroxide to dissolve. The problem will be recovery using DMG. It’s not otc. Nor is ammonium chloride.

[@frankmorris7003]

@@sreetips is there any know possible substitutes that you would recommend for the recovery process and all intelligence on this matter is very much greatly appreciated!!! Furthermore mr.sreetips you greatly inspired me to take very deep dive back into all of my chemistry and intergrated physics/chem class notes frm my public school days!! Aswell inspired me to undertake this area of science to whole new level of scientific/alchemiac endeavor. So I greatly and humbly thank u !!

[@sreetips]

Both DMG and ammonium chloride available on eBay. Processing platinum group metals has extreme health hazards. They’re not suitable for amateur refiners. Too risky. Too dangerous.

[@Civils-Mcgivney]

Video is superb but out of all the videos that I've ever seen nobody really talks about the pH level how do you adjust yours? Thank you

[@sreetips]

The only time a check pH is when I’m rinsing acid or caustic solutions off of metal to achieve neutral pH

[@larrykester8593]

This is the video you referenced to me to refinr without Nitric? When you are doing gold filled material, do you use the same math calculations to see how much sterling to inquart? Or do you just add up the total gold filled material and then get your sterling estimate from that?

[@sreetips]

I don’t inquart gold filled scrap. GF requires a totally different process.

[@larrykester8593]

@@sreetips Maybe I need to go look at a gold filled refining video. I also have 124 grams of 14K gold. Would you suggest I break it down into two refinings?

[@sreetips]

I don’t know your proficiency. But first get a fume hood. No way to safely do reactions without one.

[@larrykester8593]

@@sreetips Im fairly proficient with Chemistry. I was a pretty good student and a lot of my advanced training in LE was a lot of math and chemistry. Meth Labs were always fun to deal with! I looked like Marty McFly in Back to the Future II. That yellow chem tech suit! Ugh! 😂

[@sreetips]

You don’t have to be a chemist to refine gold and silver. But it helps. I think my first batch of karat scrap was about 60 grams. Came out looking awful. Then I Inquarted with silver (at the urging of a mentor) and it came out beautiful. Made a believer out of me. You can see photos of it on the goldrefiningforum.com my user name there is kadriver