Did sreetips Just Destroy $2700 In GOLD

[@MadScientist267]

I know this won't make much sense out of context .. I want to thank you for being one of *THE* most honest people on KZbin. Your successes, your failures, it doesn't seem to matter to you, and this is only a good thing... Whatever happens, you address things for how you see them. And you present that to us in raw form. I for one greatly appreciate the lack of *any* sugar coating. Thank you Sreetips, if that's your real name... [🤣] *ALL* of your work is greatly appreciated. Doesn't matter if we can use it directly or not... It is all useful. Please never stop being you, man. This is the kind of content the world needs. And I'm here to see all of it.

[@sreetips]

Thank you,

[@mikeconnery4652]

I wonder how many times this has happened. Knowing how to fix it would be great to know.

[@arnedalbakk6315]

So agree my friend. I yust love this canal 🙂 Have a nice day. Arne. Norway

[@ravenmischief8006]

​@@sreetips I just wanted to say thanks for showing your mistakes. I learn from them just as much.

[@weekendwarriorweldingdiypr4604]

Fortunately gold doesnt react with oxygen, and we all know you're just going to re-agua-regia it and re-precipitate it and itll be just fine.

[@Vile_Entity_3545]

Yea. It just does not transform into something else. To transmute gold into lead you would need to put it into a nuclear reactor. Plenty of donuts will believe it is ruined and lost though.

[@brianhbinesh]

At least 5 times haha

[@cv990a4]

Luckily, alchemy is not a thing, short of fusion and fission reactors. Sreetips cannot transmute base elements to gold or vice versa.

[@apveening]

Hydrochloric acid will suffice, no need for nitric.

[@MadScientist267]

Actually it does react with oxygen but only in specific conditions. This is what the H2O2 (here) or the nitric traditionally does, donates oxygen, briefly creating an oxide that the chlorine in the HCl then can attack. It's a "pretty" dance on paper.

[@Hossak]

This is why this channel is so good - unadulterated videos showing the highs and lows. From my point of view I cannot think of a form that gold would take that would render it completely impervious to re-dissolving in aqua regia. However I could be wrong and maybe a certain percentage will remain unreacted - we will have to stay tuned! :)

[@MadScientist267]

Sreetips is awesome like that. Success is a series of failures. He knows this. Presenting the failures is what makes a good scientist what they are.

[@disgruntledtoons]

The obvious first step is to simply add distilled water to the chloroauric acid crystals. We already know that it readily dissolves in water. The only real concern is that some of the gold may have become airborne particles and went up the fume hood.

[@williamfoote2888]

It’s not going to be airborne. It might spatter out if he bumped (over boiled) the solution.

[@guygordon2780]

Correction: add HCL.

[@knowldedge5012]

why would they become airborne, is not a volatile substance?

[@QIKUGAMES-QIKU]

Yahaar Me Munnie

[@OwlTech333]

39:36 you did most of the hard work so from here it’s easy even NaOH and sugar will get your gold back from the hydrated solution, or you can switch the sugar for oxalic acid… or you can use sodium nitrite solution to hydrate and precipitate the gold at the same time… options are countless

[@sreetips]

I took the easy, familiar route; rehydrate with HCl and hydrogen peroxide, filter, precipitate with SMB. The ingot still came out trashy looking. Might have been the dirty melt dish.

[@OwlTech333]

@@sreetips knowing your work, I’m sure all gold was accounted for… Mrs Sreetips can have her mind at rest :)

[@sreetips]

I re-refined the gold in my latest video. Came out looking very nice!

[@AndyGraceMedia]

I just got to the end of the video and I'm super impressed. When you buy gold (III) chloride crystals they come as a bright lemony yellow solid. You can see some in there, especially around where the crystals were forming at the meniscus at the phase change from liquid to solid. The purple/brown solid looks to be the hydrogen tetrachloroaurate in the anhydrous form (I'm guessing as I've never had a couple of thousand bucks to burn away!). You really ripped most of the water molecules out of that one! Nice work. Yet another interesting, if unintended experiment in the name of science. I don't think Mrs Sreetips has much to worry about. Some more HCl and H2O2 or AR should sort that one out fairly easily although an extremely tiny amount will have sublimated into the air.

[@PaulBrown-uj5le]

A very tiny amount 😊

[@AndyGraceMedia]

​@@PaulBrown-uj5le True it will be tiny but gold chloride does have a tendency to sublime when heated. Can't tell you at what temperature that becomes an issue because I can't remember - I did inorganic three decades ago - but I'm sure it will be online somewhere.

[@JaredKaragen]

Just add HCL. AuCl is very hygroscopic. You didn't change it's chemical structure per se, it's just anhydrous (mostly)

[@minnidot]

i never realized i was interested in gold processes until i found this channel

[@Skandalos]

Careful, it's highly addictive.

[@sbd4de3]

Great video Sreetips! I asked you sometime back if you could do a demonstration of what would happen if you had lead in the solution. Thanks for the demonstration!

[@TinaMucklow]

We should have an Annual Sreetips channel meet up / hang out. Open bar between 5pm and midnight ! We can meet in Vegas and we could bring precious metals to melt and play with lol

[@silver_salvage_savage]

Good thing about gold, it can't be destroyed. I figure some dilute hydrochloric would do it. Maybe just water?

[@PaulBrown-uj5le]

Everything can be destroyed.

[@silver_salvage_savage]

@@PaulBrown-uj5le 'cept gold. Look it up

[@PHUCKyoutube689]

If you have a particle accelerator or a nuclear reactor you can.

[@waynoswaynos]

I'm pretty sure, from what I've read, that you can reduce that dried Chloroauric Acid to metal again with just heat. Same as if you can precipitated with SMB. Don't even need borax. But I have read a lot and could be crossing this up with another thing! You certainly can't kill it, even if you had melted it into the Pyrex glassware. Before the discovery of things like SMB this was a way it was done. Also, you can purify with crystallisation as well as filtration can. So if you had stopped earlier and left it to cool and collected the crystals, and did this a few times, you'd get very high purity gold. Usually you find that the crystals collected at the start look different to the ones collected at the end, signifying that there is another metal or compound present.

[@Sanzus2]

Well thankfully you've got the shop to hide in! 😊 I would think rehydrate with h2o or dillute hcl? Looking forward to the recovery!

[@JoshuaRosaaen]

Loving the cliffhanger element to your pattern of storytelling. Thank you for lubricating the process with some lead...which led us to this place of opportunity to discover what happens together in a fun and exciting way. Looking forward to the next steps here. Thank you so much for these insights.

[@gfhrtshergheghegewgewgew1730]

15:49 solution in the funnel looks unironically like sunny delight, haven't had that stuff in years, i don't even know if i even see it in stores anymore

[@William_Borgeson]

Now that's a cliffhanger, and I honestly never thought I'd see one on your channel, well done! I love that you do this just to educate us, and it's greatly appreciated. I know it's still recoverable, but seeing mistakes, and how to avoid/correct them is fantastic, thank you.

[@joek511]

I did the same thing yesterday. In fact I've done it many times. You have highly acidic crystals, they just need hydrating. Some gold will already be in metallic form, beautiful gold. Super Super fine, like tiny specks of glitter. Not a problem just drop it out.

[@base_cannon6066]

On this exciting episode of Sreetips gold refining: Sreetips burns his gold TO A CRISP!

[@skinnywheelz]

🤣😂

[@PaulBrown-uj5le]

Lol

[@alekssakota3825]

Heating the Auric solution until it dries is actually a good method after using Aqua Regia to evaporate any leftover nitrates, which could redissolve precipitated gold back into the solution. It that case however, it is enough just to dry it out, not burn it down.

[@apveening]

That precipitate at 11:00 is most likely lead chloride (PbCl), as that is not very soluble (much better than AgCl, but much less than AuCl).

[@mouserr]

either rehydrate with hcl or redo aqua regia ... the gold is undamaged just trapped in the dried acid

[@apveening]

HCl should be sufficient, no need for nitric.

[@oculusangelicus8978]

I think that adding distilled water first to rehydrate the crystals, if they can be called such, and then add fresh aqua-regia and then of course heat and I think it will go right back into what it was before bring brought down to this dry form. If this works out this may be a way to store gold in a form that would not be recognized by the average lay person, and you could label it Refining waste and no one would be the wiser. LOL

[@apveening]

Just hydrochloric acid should do, no need for nitric.

[@sreetips]

Plus, it’s probably not detectable with a metal detector.

[@ArielleViking]

I'm looking forward to part 2 of this one. Will you rehydrate it, will you redissolve it, or will you do something completely different with it? It'll be fascinating to see. 👍

[@MikkellTheImmortal]

16:52 I would put money on it that you have removed all the lead that you added. If you were to weigh the powder left from the lead sulphate and chloride it should weigh a bit more than the lead you added. I'm surprised at how fine the lead sulphate is. On that note, what process gives you the finest particle size of gold?

[@sreetips]

Conditions vary. I’ve seen it do fine that the amount of gold powder seems like you got ripped off. But then it’s all there (expected yield) when I go the melt. I don’t know what causes that to happen.

[@kylecissell958]

Well I am guessing that since you have a mix of yellow and brown in the beaker, some of the gold has become the anhydrous (brown) and some is still in its monohydrate form (yellow). Now it is possible that the excessive heating may have converted the Gold (III) chloride into Gold (I) chloride driving off Chlorine gas in the process. If that did happen then when you go to rehydrate the powder it is possible that not all of it may dissolve. 😅

[@PaulBrown-uj5le]

Yeah, possibly, it could be a mix of both like you say or there could be something else going on we don't know about, but that's the next episode of Sreetips crazy gold show😂😂😂

[@AndyGraceMedia]

This is a great answer! The anhydrous form should be red-brown and agree with the (III) to (i) oxidation state. Bright, lemon yellow to a darker orange-yellow. More heat would result in dismutation --> elemental Au + more in (III).

[@MikkellTheImmortal]

4:12 I honestly expected that you would need to let the stanis solution sit and dissolve the tin and stir it up, but no, that's pretty interesting. What colour does osmium come out as (if you know).

[@sreetips]

I don’t know

[@HE-pu3nt]

"Gold lost!" "Mrs Sreetips - FURIOUS." "I'll be sleeping between the hood and the melt table tonight if I can't find the gold." Good work Sir.😂.

[@TroubledOnePaydirt]

Left us on a cliffhanger! Well played sir. Well played. 🤨😂😂😂

[@bradleyj.fortner2203]

Gold is an element. It's pretty hard to destroy.

[@AndyGraceMedia]

Heavy ion beam physicist: Hold my beer!

[@josephcormier5974]

Sir just add distilled water and hydrochloric acid I would think that would bring it back? This has been very informative and interesting thank you for sharing this with us six stars

[@jonathanemerson2436]

Random question. If i bought a bunch of gold, dissolved it into solution so it just looked like yellow water, kept it in a 5 gallon Poland spring jug, overtime would it fall out of solution? Asking in an apocalyptic scenario where a gold bar is much more easy to identify an steal than yellow liquid

[@apveening]

Dissolved gold won't come out of solution without some external cause. There is that true story about the Nobel gold medals that were dissolved to keep them safe from the Nazis.

[@B-System]

Gold wouldn't come out of solution, but your Poland Spring jug would disintegrate in short order. Assuming it's kept sealed in a vessel that it can't attack, metal solutions in aqua regia are stable indefinitely.

[@PaulBrown-uj5le]

First off what's a Poland spring jug😂😂😂

[@sreetips]

I think it will keep indefinitely.

[@arnedalbakk6315]

Hello Mrs and Mr sreetips. I am so happy to join the best chanal om youtube again. I have going to cronical pain in my body,but finally i get good help from my doctor 🙂 What a shame you gold loss. I have not see the full clip but i read the first words. Have i nice day both of you Sit. Arne

[@sreetips]

Good to have you back.

[@arnedalbakk6315]

@@sreetips Sir...and so many new people in the sreetips family. Say hello to you family my friend. God bless the family and you Sir. You doing yust fine 💌

[@arnedalbakk6315]

And thanks for having me. I have really miss this canal. But the good thing is a lot of clip i can see 🙂 Arne

[@ricknelson947]

A nice cliffhanger for the weekend. Is it still gold, or really expensive brownies?🤔

[@BodaScambaits]

I read the title, and before watching, I am saying. Gold can not be destroyed!

[@alanpecherer5705]

I can't see why you couldn''t recover your gold out of that dark residue with a straightforward aqua regia treatment. You might have to cook it for a while. I shall follow with interest!

[@apveening]

Hydrochloric or maybe even plain water should suffice, no need for nitric.

[@okboomer6201]

Did we all count the drops of HCl?

[@TroubledOnePaydirt]

I counted 34… lol…

[@Buggy.MealwormsTV]

Great show! Can't wait to see how this turns out. Thank you Sir.

[@glOckcOma]

Another amazing Streetips video. Sucks that this happened, even a highly skilled pro like yourself can have slip ups sometimes. Just shows you're human. Hopefully there is a way to resolve this issue with no loss. Also, you're welcome for suggesting to add lead to see sulfuric acid in action, I knew it would be a cool experiment, even though I got flamed by a few commenters for suggesting it.

[@93matarl]

yes that is lead chloride Pb(NO3)2 + 2 HCl → PbCl2(s) + 2 HNO3 is the formula according to Wikipedia also there might be a reaction with lead oxide directly with the hydrochloride PbO2 + 4 HCl → PbCl2(s) + Cl2 + 2 H2O i think this is the one following the gold until you add the sulfuric acid.

[@gregolsson4370]

Thank you for adding lead and showing how sulfuric acid reacts with it. I requested that test in an earlier vid!

[@mickg6480]

Ever since I began watching your videos, I wondered about the lead thing. Now I know. Very informative and interesting. Since you ad sulphuric acid in each refining step, do you encounter a lot of lead when you process your paper filters en masses? I would think hundreds of them would contain an accumulation of lead.

[@sreetips]

There’s probably lead in there when I do my filter paper. But I always add some sulfuric acid to precipitate it out.

[@hanaashaheen4907]

شكرا يااستاذي العزيز على المجهود واريد معرفت شيء هل وضع الثلج فى البيكر على المحلول لقتل النيتريك بديل اليوريا وتحيد النيتريك ارجوا الرد على السؤال💖

[@sreetips]

No, Ice does not kill excess nitric. Nor does urea. The best way to kill excess nitric is to evaporate down to a syrup, then rehydrate with HCl. I add ice to precipitate out and silver chloride so it can be filtered out.

[@hanaashaheen4907]

​@@sreetipsشكرا لك استاذى العزيز على الرد و الإجابة تحياتي لك 👍💖

[@joshuahopper3036]

Very informative video. I love it when you introduce things like this into the experiment for your benefit and ours. Been watching your videos for years and am glad you finally did this. Go Sreetips!!

[@williamsundermeyer7379]

Thanks streettips.. The alchemy stuff I've read is the red is very very powerful .. Like 1/4 what you grab in twesers In a quart of everclere. Than put a drop of that in your fav beverage 2 times a year

[@TechneMoira]

Why don't you pour the extra silver nitrate solution through your partially filled anode basket, mr Sreetips? That way you can replenish the amount in the bowl below AND you enhance the conduction through the silver shot somewhat, in my opinion

[@sreetips]

Because I fear that some of the very fine particulate may get washed through the filter into the silver cell.

[@Nemesis04208]

I believe the precipitate that was in your solution was lead nitrate or lead 2, lead chloride is soluble and nitric acid but lead acetate is not, so it may also be lead acetate

[@Joe.Rogan.]

Oh man.. what a cliffhanger. I've always wondered what would happen if you cooked the gold for too long... I always figured you would just have to rehydrate the burnt crust but now seeing it in person I don't know if it's going to be that easy.

[@MadScientist267]

I have a strong suspicion that will readily go right back into solution. If water alone doesn't get most of it, a little extra help from a bit of HCl/H2O2 would get things right back where they started

[@emeraldkind]

I think it will desolate pretty good in aqua regia. Maybe a small amount lost but it can be recaptured in his filter collection. I don’t think he has actually lost any gold.

[@MadScientist267]

@@emeraldkind Nope. He's good. Just a scare.

[@robertallison9653]

@15:10 I would have let the acid time to work and settle down a couple minutes to precipitate down @9:44 I've asked you before, but for my followers, do you use tap water ice? It's loaded with exotic compounds including Chloramine, Hydrofluoric acid all up in municipal tap water, I can't even spell the compounds and spell check isn't helping me.

[@sreetips]

Tap water, contaminants in parts per million. Not enough to affect a precious metals assay.

[@charleswise5570]

I absolutely loved this line of experiments! Seeing sulfuric acid precipitate lead was really interesting.

[@mr.g-sez]

so the stannous chrystals make your solution look white?! i always wondered why it looks so different than mine. mine old stannous turned yellow, is that normal? it still woked tho but i think it went bad

[@Heymrk]

Hey, that Tin was processed in my hometown! I don't live in Alabama anymore, but I do miss Birmingham.

[@TroubledOnePaydirt]

Finally!! A new video. I been checking the channel all day today. Lol… 👍🥳

[@terischannel]

I sent you an email a couple of years ago about a stockpot that was given too me. I finally decided to tackle the problem. Im running into some weird issues. Im considering trying electrolysis for the copper, silver and gold. But, I don't know what this sludge is made of 😂. So far I have taken 5 200g samples but there's something interacting with the solution that's making nothing come out of solution. I use stanus to test for gold and hydrochloric acid to test for silver. The only thig i have been able to find out about the original solution is that the person used "a lot of SMB to neutralize everything." I don't even know what that means 😂. If anyone has suggestions let me know. This is a bit of a personal vendetta at this point.

[@sreetips]

Stock pot is a concoction of everything. Who knows what lurks in there. I’ve refined four or five. And it’s different every time.

[@Cmuron]

i would think adding HCl would rehydrate the Chloroauric(?) acid. But he would have to once again create his syrup.

[@EdWolfram]

That gold nitrate solution at the start looked like it was more than the testing solution in concentration. TY for the video

[@DEmma1972]

I would assume its just a case of rehydrating and dissolving the gold again? Early in the video you mentioned using hot tap water, would this not create issues with all the impurities in tap water? Great video though showing when things dont go as planned.

[@sreetips]

Tap water contamination is parts per million. Won’t hurt a thing.

[@richardbeee]

Lead chloride is white and dissolves in water. So as you washed the paper, you were re-dissolving the lead back into your aqua-regia. That's why your solution was cloudy .

[@Halloween111]

Lead Nitrate. Lead chloride is poorly water soluble while lead nitrate dissolves pretty quickly in water. Interestingly, lead only dissolves into nitric acid sparingly.

[@richardbeee]

@Halloween111 when we precipitated silver chloride we always washed with water. Preferably hot. Always had a hard time getting lead nitrates to dissolve in water.

[@custos3249]

It's fine. You're partly right about chloroauric crystals, assuming any survived. The rest of it thermally decomposed into gold and lead oxide, possibly an alloy if the lead didn't oxidize. Hard to say how much of each since both substances are yellow to brown in color. If you deal with lead in the future, might be worth looking into bone ash cupels.

[@PaulBrown-uj5le]

What lead?, he got rid of it long before it was dry burned...

[@custos3249]

@@PaulBrown-uj5le Jumped ahead in the video. Regardless, the gold is still there.

[@vincejamison8078]

"using my bestest scooby doo voice" RUT RO Sreetips gittin burnt T.V. dinner tonight 😂😂😂😂

[@MikeNOtie]

I’m sure you will work your magic! Have you thought about getting a chest harness for your go pro? It’ll make it so you won’t have to work around your tripod and stop it from getting it in your way. Just a thought!

[@richardmckinney4963]

Wouldn't the silver push the gold out of solution seeing how silver is more reactive than gold?

[@apveening]

What silver where?

[@richardmckinney4963]

@@apveening when he put the used nitric acid that had a trace of gold in solution. The silver that will go in solution will push out the gold.

[@sreetips]

I don’t think so.

[@mcwolfbeast]

Just redissolve it in HCl, Sreetips. It should be fine, not like it can "burn" as it's inorganic material.

[@rodjones2047]

What's happening stranger I have a question. Refining gold pins, I dissolved with aqua regia. And precipitated with smb. Since I'm out of nitric acid and hydrochloric, but I have 93% sulfuric acid. For my second refining can I just use sulfuric acid alone to refine the powder? Would it not dissolve everything but gold?

[@rodjones2047]

This is Jay Charter from back in the day here on KZbin

[@sreetips]

Sorry, I don’t know.

[@sreetips]

Howdy!

[@macguru9999]

I would dissolve it in HCL, you may need to add a little nitric , then PPT out with stump out. Or you could send it to Jason at mbmms and he would smelt it out with some borax and a collector metal :)

[@CuttinEJ]

I think all you really need to do is rehydrate with HCl and maybe very low heat to help redissolve.

[@mfanto1]

Nano gold particals are red hence the red colour in stained glass

[@rosenwolf7892]

the lead shot you used, was it from ballistic lead? ( lead for bullets or shot gun shells ) if so it could be a tin or antimony precipitate of some sort.

[@sreetips]

From a lab supply

[@davidhrutfiord2537]

This would have been a great time try a bit of drug store iodine on one of your filter papers to test for lead. Hopefully you can rehydrate and recover from the mess at the end.

[@sreetips]

How does iodine indicate lead? Sounds neat.

[@vancejohn4834]

Lead shot could have tin and antimony . They use them to make it harder. 92% lead 6% tin and 2% antimony is a common formula used to make it harder. like anything in this world there are many different formulas to making lead harder. that is mostly for casting bullets and i have seen silver in those alloys.

[@MostlyIC]

gold can neither be created nor destroyed, just add HCl and water to re-hydrate it and if there's still any solid metal after than just add nitric or peroxide to re-disolve it.

[@dracrichards5785]

I'm pretty sure all you need to do to rescue it is just redissolve it in aqua regia and it'll be fine.

[@MADDLADO1]

Hey Professor S., I've been wondering whether you buy your distilled water, or rend it yourself. Reason is, I bought a countertop unit recently, which makes 1 gallon in 5 hours, for my own drinking water, and it's really slick. Distilled water is about $4.50 per gal. where I live, so this was a great investment for me. I've seen you using commercial dw in your vids, but maybe you're just using the same jugs like I do now. If you run one of these machines for labwork, they sell a tester that will show if you're doing it right, which would verify it's purity for qc. The one I bought is an H20 Labs stainless unit, made in USA It's something that I'm pretty happy about, and wanted to ask you.

[@sreetips]

I use grocery store distilled water. It’s been $0.99 per gallon for ten years. Then about a year ago they raised it to $1.19 then recently it went to $1.39 but I don’t blame them. They have to do this to stay in business. The water hasn’t become more valuable. Nor more scarce. The value of the currency (US dollar) has lost that much purchasing power. That’s not the grocery stores fault. That’s the fault of the central bank, printing money out of thin air to avoid financial disaster. And that’s why I don’t store my savings in paper dollars. I store my savings in GOLD. That way a forty percent increase in price (due to money printing) doesn’t bother me a bit. High interest rates, and failing currency are not my concerns. We planned for this decades ago when we converted out paper to metals.

[@MADDLADO1]

@@sreetips Amen brother, you're way ahead of the sheep with all that. Inflation is killing us here in Alaska, it's really a drag. At less than a buck fifty a gallon for dw, I'd just buy it too. Good enough, thanks for your response and great channel....Carry on !!

[@sreetips]

The line between the haves, and the have-nots, is drifting upwards rapidly. Some items have increased a hundred percent. All the numbers being given are cooked. Just wait until people begin to realized that their valuations are based on a mountain of debt. It’s not what I want to see. But it’s what we’ve allowed them to give us. The only way I see to protect yourself (financially) is with real money: GOLD and Silver.

[@MADDLADO1]

@@sreetips Totally with you, these Keynesian economists are wiping out our birthright as Americans, and they should be nowhere near seats of power. I think you've done exactly the right thing, for your retirement years, and your economic philosophy is spot on.

[@danielsadler9077]

What’s the solid stuff that accumulates at the bottom of the gold refining waste flask?

[@sreetips]

GOLD!

[@mikeconnery4652]

Great video how to make stannus chloride. Seeing gold, platinum, and palladium colors on stannus chloride strips. Awesome. Getting lead out a gold solution. Awesome. Then burning the gold. Lol great video

[@roberthercules3159]

11:29 that's the lead-chloride precipitate I was telling you about a few weeks ago😂

[@roberthercules3159]

Lead will readily dissolve in nitric acid, forming colorless lead nitrate (which forms clear crystals when dried), but adding HCl converts the lead nitrate to lead chloride, which precipitates out as a white powder.

[@Ziegen-Sauger]

Mr. Sreetips, you’ve shown at least three times your procedure with gold reacting with nitric acid. This is more or less what we find in literature, different wording here and there: Nitric acid can attack on the gold atoms and can remove gold atoms from the gold piece submerged in it, but those gold atoms get back to the surface of the gold piece. This happens due to equilibrium that is achieved very early. Deeper details: The simplest answer to this question would be no, gold does not dissolve in nitric acid. Nitric acid can remove gold atoms from the submerged piece of gold in it, but equilibrium is established quickly and those dissolved gold atoms again get back to the surface of the gold piece. Even concentrated nitric acid cannot dissolve gold, equilibrium will inevitably establish in it. Nitric acid only turns the gold atoms into gold ions, as gold is still in the form of a single element it will go back to the gold piece. The chemical formula of nitric acid is HNO3 and that of gold is Au . Although, if the mixture of nitric acid and hydrochloric acid is taken with 1:3 proportion respectively, gold will dissolve in it. This mixture is known as aqua regia. The nitric acid in aqua regia helps gold atoms turn into ions and the hydrochloric acid helps gold ions turn into tetrachloroaurate anion. After gold turns into ion form, chlorine attacks it to form tetrachloroaurate and as that is a compound of gold, it cannot be separated to simple gold. Thus, gold remains dissolved in the solution. The reaction of it is shown below. Au+HNO3+4Hcl⇆AuCl4−+NO+H3O++H2O Nitrogen oxide and water are formed as by-products. Note: Although gold and other noble metals can dissolve in aqua regia, they cannot dissolve in either nitric acid or hydrochloric acid separately, however concentrated they are. The functions of both help each other in dissolving the atoms of gold and other noble metals. The bug in my head every time you demonstrate that tells me: 1) either the gold power when you follow some procedure is in the form of nano particles (the chemical term for the so called fine divided state - usually we see some purple when the gold is “finely divided), or; 2) every on e in a while your distilled or purified water has chlorine traces to trigger that reaction. If is really intriguing. I brought this to the forum about 2 years ago the people just shut me up and told me to investigate a few things.

[@sreetips]

I use ten to one HCl to nitric, I can dissolve an ounce of gold powder in about 150ml HCl and 15ml to 18ml nitric acid.

[@thehaze1972]

Should be some nice gold solution again once you rehydrate it with some HCL. 🙏👍

[@Robert-t5b2g]

Seems like rehydrating with hcl boil would fix the issue.

[@timsmith9645]

That's a bummer I hope you can get it resolved or figured out thanks for sharing sreetips

[@zutai1]

when smelting, lead is used as a collector metal. i wonder if lead can be used similarly in the chemical refining.

[@sreetips]

Smelting (recovering metals from ore) and refining are two totally different processes.

[@zutai1]

just looking for overlaps. like using borax to clean away the surface of a molten metal, and the like@@sreetips

[@ExtractingMetals]

Well, at least we know there’s no excess nitric in it 🤔 Maybe rehydrate with distilled water…. That’s what would be done if you purchased those crystals for lab use. If all else fails you can explore using piranha solution 😄

[@PaulBrown-uj5le]

Or....just add hydrochloric acid.

[@GOLD_FEVER]

My question is : CAN YOU MELT THAT down? I feel like that is just not how chemistry works... Will the crystals turn to burnt dust if you subject them to heat in a crucible? Or will the "gold" part melt? Please enlighten me !

[@sreetips]

If you get it hot enough, then it will decompose. But part of it would probably go up in pretty purple smoke.

[@xenaguy01]

Not to panic. The gold is all still inside thee beaker, just rehydrate with HCl over heat. Then precipitate as normal.

[@MikkellTheImmortal]

I really like to do experiments where there is little to no literature on the subject. As we already know lead in your gold is bad, but how bad when you have an extreme excess of lead, what will happen. I'm excited for the results, and the solution to fixing any issues.

[@sreetips]

I had a jeweler who was trying to roll some gold thin. It would crack and break into pieces as he rolled it. So I refined it for him, alloyed copper, zinc and silver to make 10k gold. He said it rolled like butter after that.

[@weathercaster]

I have a feeling there is a bit of a dramatic flare here, but I am pretty sure distilled water and a low heat would rehydrate just fine? Good luck!

[@antonart2.0]

I have a may be stupid question. What would happen if you just leave the pure gold solution to dry out? Will the gold crystallize eventually?

[@antonart2.0]

Never mind I guess, I got an answer from the video just a couple minutes later I asked it))

[@johnathanwells7363]

Could you be able to make a different stanis test solutions to test for lead. It would be kinda cool to see what color it is on a test strip.

[@sreetips]

Stannous test solution only works for precious metals.

[@Marketto8777]

hello mr. sreetips. one simple question. what type of y paper do you use? I almost finished my pack, but it doesn't say what type it is. As in "slow, medium, fast". Thanks!

[@sreetips]

I used number 2 medium flow filters

[@davidrobinson2450]

Add hlc and h2o...And you absolutely lost a measurable amount through evaporation,,but we already know some is always lost during evaporation ,,just not That much

[@uspockdad6429]

@sreetips what is the purpose of adding stannous chloride crystals? Can’t you just dissolve some tin in HCl? I usually make my own stannous with HCl and an excess of tin to keep it fresh. Is what I am doing not really stannous chloride?

[@sreetips]

I use a recipe found on a video over a decade ago.

[@uspockdad6429]

@@sreetipsthank you good sir. I’m going to make some testing solutions with known PM content and double check my stannous. I just hope I wasn’t screwing up my tests for the last year. Luckily like you I keep my waste so if I did lose any, I should be able to recover later. You sir are a treasure to the refining community. Even surpassing CM Hoke at this point for most of us. Her book is amazing, but actually seeing these processes is invaluable.

[@OneOfDisease]

Thanks for the lead demonstration! What a mess. Was there a part two to this video?

[@sreetips]

Yes, I re-dissolved in a little hot aqua regia and recovered the gold.

[@bigroba3005]

U could drip your test solutions on the filter from funnel to see what was white precipitation since your tossing it

[@DragonBlazeDesigns]

happens but the good think is to not give up sure you can fix it just need to back step rethink what you did try see what can be use to turn back then try again more like it will be less but getting something better then nothing yea?

[@Ellis157]

could you just pour the new solution right into your filter basket carefully. with the power supply off.

[@sreetips]

Possibly, but I fear that it could cause very fine particulate to pass through the filter down into the cell.

[@Ellis157]

@@sreetips that make sense

[@edwardtk1210]

Would it be more cost effective to incourt gold with gold filled

[@sreetips]

No, I tried that once and it was a bad experience. Video is posted on my channel.

[@shaneyork300]

I remember asking about this & I'm excited to see the next step! I hope my excitement is not at your expense!!😮😮😮

[@darganx]

Wow never seen burnt gold before this, what an amazing material. I would assume you can put it back in solution and start again?

[@sreetips]

Correct

[@Alsacien]

I'm sure that someone asked already, but out of curiosity, would it be possible to know the strength in % of the hydrochloric and nitric acids you're using, please Sreetips? I got an account opened at a big supplier and they have so much choice that I'm not sure which acids strike the best balance between price and strength. I didn't have nearly as much choice before. Did you choose yours after much debate or did you simply choose what your supplier had available? I'd love to compare prices with you as well, but this might be a little too nosy on my part. ;)

[@sreetips]

The nitric bottle says 68% to 70% from gfs chemical. It’s ACS grade chemically pure. I just ordered from gfs. The nitric was $260 for six 2.5 liter bottles. $154 to ship it. But I’ve used technical grade from dudadiesel. That was 67%

[@Alsacien]

@@sreetips Thank you so much for these figures! It turns out that we're using the same strength and paying roughly the same price, I pay the equivalent of $408 (20% VAT and delivery included) for six 2.5L bottles in France. Mine isn't ACS though, ACS would bring my cost to $609. I'm quite tempted to try their 53% sold in 25L bottles for $7.68 per liter, it's so affordable, but the potential unknown unknowns scare me, I don't know anyone who uses nitric acid that weak for precious metal refining.

[@BullProspecting]

I just did the same thing! Add Water+Nitric +Sulfuric then bring to a boil! It will all come right off and you will be back in action!

[@djcbanks]

No way this is the first time you’ve boiled one dry in all the years you’ve been refining. Haha. I know I’ve done my share of boiling the chloroauric acid dry. It’s always the same story. You start by wanting to evaporate and reduce the volume and while it’s doing that you go and do something else only to come back and find it’s way past done. Seems it would never go that fast if you watched it. I’ve even had a beaker fall over some how, I can only assume it was from the bumping as the volume decreased. Luckily when the fall occurred, everything had already dried out and it just spilled dry crystals on my setup. As for your boil to dehydration issue… a little h20 or HCL and you be back in business for the most part. I’m willing to bet some of the gold came out of solution and is back in metallic form, which will need to be redissolved but the majority is cholorauric acid and will just need to be rehydrated to be ready to go. .

[@sreetips]

Agree.