I don't know if it's just me but I could sit and watch you sort scrap jewelry and talk shop for hours. It's cool to see the other side of what you do once in a while.
You should do a video where you do just a few nitric boils, just a single refining, no hydrochloric boils, ect, and do a batch of each like that with a few grams each and send them off to be purity tested to show how much the extra time and steps you take matter. I think it would be a fun experimental video.
While informative, the 3rd party lab report, whether XRF or gas chromatography would be highly cost prohibitive for him. That is, unless we were to start contributing towards his efforts. I know I’ve found this channel highly educational.
I really liked this one, the nitric acid boils time lapse was perfect and the SO2 gas precipitation is always a delight to see. And that ingot came out so pretty!!
Sreetips reserves the Sunday Gotomeeting melt dish for special occasions like the SO2 precipitation. While i like watching the StumpOut method, the SO2 seems to give a ‘cleaner’ result. That bar turned out beautifully
It’s out there, but it won’t just fall in your lap. Mrs sreetips was up at 3am. She just left about 5am heading out to search for precious metals. Saturday is her big day. But you got to know when, where and what to look for. This comes with experience. There’s no substitute for experience. Get up early, be there first when they raise the garage door for their sale. Quietly, away from others, ask the seller if they have any jewelry for sale. You’ll be surprised at what you can find.
Thank you so much for the SO2 precipitation! The surgery went well. I'm hoping for a speedy recovery. Your videos add infinitely to my morale You are the best!!!
@@sreetips thank you for the answer. I am just trying to understand the mechanics of the process. The nuances are what make it work. Thank you for the open dialog and the experience you share with us.
Probably one of the coolest things I've seen in my short 33 years. Chemistry has always fascinated me in ways nothing else has 👍👍👍👍 awesome video, thank you!
Nice job Mr S. Just a thought for you... here in Philippines HNO3 is very expensive, so what we do is collect the NO2 (evolved during the process-red fumes) using a vacuum adapter into a condenser (liebig) at 5C and then from there into a gas trap (in Ice water), with some H2O2, this produces very little, if any fumes as all of the NOx is converted back to Nitric acid to save money, also this has the advantage of not rusting up any metal (in the fume hood- stands brackets, etc) from the NOx vapours. Would make an interesting Video, but you may need a larger fume hood to locate the glassware.😊 All the best
That must suck mightily. Don't you guys have nitrates over there? I'll take my crusty brown exhaust ducts over a tedious nitric recovery any day. I do scrub my nox through a bubbler and sometimes use the weak solution that results, but to rely on that as a source... man I do not envy you.
I haven’t watched any videos in awhile so this is the first time I have seen the light on the Timelapse of diluting the pure gold. Can see it way better now nice touch
It would be interesting to see the weight difference in the gold at different stages like after inquartation weight, to after the nitric boils weight to final product weight. I know it would waste time with drying it all off several different times but you seem to be a fan of the scientific process and it might shed some new light on how little gold is lost throughout the refining process. I know every new fan asks the same questions because once upon a time i was that fan saying "youre pouring the gold off in your waste container! " haha now i know that Sreetips wastes nothing 😊
I'm guessing the wet weight isn't going to be substantially higher. Gold is twice as heavy as lead and nearly identical to tungsten. And not only that if it is precipitated under the same conditions will probably always have a similar wet vs dry weight after decanting.
Every time.. i feel like im a kid, sitting in front of rhe tv, waiting for Mr. Rogers. Thats how i feel with you Sreetips😂 Thanks for letting me be i child for a few MINUTES 🎉 My 12 year old son loves your content. We wait patiently for the SMB, only to say "sodium metaby sulfate " together 😂😂😂 GREETINGS from SWITZERLAND
I would love for you to talk about the differences in the types of acids used in your videos. The strength comparisons and any other details that are relevant would be appreciated. Also discussion about the weight of the gold versus other material when rinsing and pouring off the waste. It sometimes seems that you would be pouring out the gold but I assume it is not suspended and that it is other stuff that is poured into the waste container. Of course I know that some does and you will process it later but I think it would be good information to include. I’m sure you feel like you are always repeating the same things so that might be something new for you to talk about. I love going on RUclips and seeing that you have posted a new video! Never miss any! ❤
Thank you. There is so much junk posted. I’m guilty of spending too much time looking at it. I strive for educational and accurate content for the benefit of those who genuinely want to learn about the fascinating world of precious metals refining.
I like how you and mrs sreetips complete each others. Even if she's more behind the scene, here work stays vital for your channel. She hunts the raw ressources and you refine them. Also I really like when your videos start with your 10,14 and 18k boxes in front of you. I also like to see the work you do to sort them out. If there's no marking on the jewels is there another way to differenciate the gold purity? I think I remember you saying mrs sreetips can see the diffence, but other than her talent is there a stuff of a color chart or something to help with that?
at 2:50 he's scratching some gold off and running acid over it to see if the acid can dissolve the gold. The acid will be able to dissolve certain karat but not others which will help him determine what the karat the gold is. (I only know this from binging Sreetips videos)
Hello. After looking at thousands of pieces of jewelry over the years, it’s possible to distinguish real gold from “fake gold” with just a glance. This comes from experience. There’s no substitute for experience. The acid test can be used to determine the purity of the gold as well.
Congratulations Sreetips. The methods and techniques you used in refining this gold produced .99999 fine gold and yes, their's such a thing as 5 - 9's fine gold. Cool stuff my man. Cool stuff.
Another great video! Love to see you using different techniques. Have you ever considered setting up a Discord account for people to come and ask questions. Would be more centralized and easier to respond to then all of your different videos' comment sections?
Very nice. Gold chemistry really is facinating. As an undergraduate, I made a lot of batches of colloidal gold from Aldrich's Hydrogen tertrachloroaurate. I worked with a bunch of post-docs in Michael J. Natan's group at Penn State doing a lot of surface chemistry. Got my name on a few papers outta the deal. Seeing those acids reminded me of always cleaning our glassware with aqua regia and pirhana. Well, no piranha on the glass substrates (we used microscopes slides). It etches the glass and would aggregate the gold colloid...defeating the whole purpose of making the colloid in the first place :)
Thanks for the great content! Have you ever thought of rolling your pure gold bars out to a uniform thickness and using a custom branded coin or bar die? Maybe 1g, 10g, sizes. Might be a fun series of videos.
I cant believe what I just watched here... Outstanding. So so so so many questions, but ill first look for the answers in your other videos assuming you have a "FOR DUMMIES" set of videos that explains all this in detail with whys and hows addressed. Loved it.
I just watched again. Couldn’t take my eyes off. Thirty six minutes flew by like ten. Those bubbles turned out to be tiny specs of borax from the melt dish.
I didn't know gold could be put into solution without nitric acid like that. Looks like a real good way to do it. I would also think it would have a cost benefit too. Nice.
I’ve used drug store 3% hydrogen peroxide, but it takes a lot more of it. Plus, I think you can boil it down to concentrate it. But I’ve never tried it.
@@sreetips I've heard you can concentrate it by freezing, at least at lower concentrations. It gets weird at high purity. Explosions and Fire did an episode all about concentrating and purifying H202. (Or maybe it was his second channel, Extractions and Ire.) It's a pretty interesting watch.
@OP - it really shows you what the nitric acid is doing. It's not the nitrogen, so much, it's the oxidizing power of the nitric acid that's really doing the work. A strong oxidizer makes the gold actually able to react with other things, kind of like a catalyst. Even though gold won't form an oxide on its own, the oxygen kind of "pulls" on the atoms just enough to convince them to bind to something else like chlorine, one of the most reactive electro-negative elements. Flourine would probably work even better, except that HF is so deadly no one wants to work with it (and it dissolves glass). I think Periodic Videos did a video on aqua regia explaining it more scientifically.
@@putteslaintxtbks5166 Yes I know. I was pointing out why there are other oxidizers besides nitric acid that can do the same thing chemically. Even though nitric acid is the most common method, it's really the oxygen that's the reason it works.
I enjoy watching you grade your jewelry there. I could just watch you do that all day. Unfortunately, most people don’t want to see that. It would be cool if you just had live camera park somewhere in your shop. Live streaming! I don’t know. I’m just a nerd! 😂
That is a beautiful gold bar, sir :) A pleasure watching you make it... almost like watching an alchemist doing weird and wonderful stuff that yields gold in the end :)
Its so dam neat that you keep gold around and when you need cash you just spend the day refining gold and by the time your done you have ten thousand bucks to smart my friend
Wow!! Very impressed! I hate to bug you with dumb questions but I need to! I was given a small container filled with ingots. It is obvious most of them have good amounts of gold in them with what looks like mostly copper. Some are a rose gold mix of the two while others have distinct Sections of what is obviously copper and distinct sections of much brighter/ higher karat gold! So far I have sat them in a mixture of 2 parts muratic acid to one part hydrogen peroxide and some heat. I kept the heat between 80/110 degrees F. I let them soak until the reaction fazed out. Pulled them out and rinsed them with water and baking soda to neutralize the acid leftover. Ok I should say this is my first time ever attempting those abs to be honest I had no idea what was going to happen. I understand that the process to do it the right way a lot more entailed, and requires a lot of knowledge and probably experience like you have sir. To my surprise, though all of the pieces have shrunk down quite a bit and the sections of gold in these ingots are much larger and more defined, and very very bright gold. Which appear to be a high carat. I am still not separated completely from the copper. My question to you is am I royally messing this up? Also, in theory, could I continue to do the same process and get rid of all the copper, and be left with the gold, that is in them? Again, I am very new to this, and would appreciate any knowledge that you can pass down. If you know of a way that I can accomplish, pulling the gold out of these ingots with minimal expertise and equipment, would you please enlighten me? I am very much thankful for your time!
So2 gas is scary stuff! I work repairing Sulphur storage tanks as a welder. We have to be under air because the tanks always catch fire and release so2. A tank vented so2 at a plant I worked at, and the gas blew over the plant and ended up permanently damaging the lungs of some workers.
Agree, of all the gas that I’ve made for refining, SO2 is the worst. Even a tiny whiff while pouring a waste solution into my stock pot, cause my bronchial tissues to swell and interfere with breathing for a long time after. Chlorine is bad, but it doesn’t last as long as SO2 discomfort.
It would be cool to see the syrup boiled down to truly "dry" crystals that you could gather in a small beaker just so we could see crystalline chloro auric acid in a similar form to pure silver crystals.
43.1g about £2,159 flipping ek, well done. Id love to do this kind of thing, but dont have the technical know how. Thank you for your videos, i find them interesting.
Hello street tips, you may not remember me cause I've been out of refining for a couple years but now I have my lab built the right way and getting back into it! I live in Maine an really only do IC chips and foils but have done ceramics before. Just wanted to introduce myself and say that's a mighty pretty bar!!
The final step of melting down the gold. If you presented that stuff to me before the melting and said this is pure gold. I would have laughed and called you a snake oil sales man. Not sure if it looks the same in real life but on camera it looks like plain old mud/used coffee grinds. You could literally leave that stuff out in the garden next to some compost and no one would think it was pure gold. Until it gets melted down. Thanks for sharing the step by step process. Very interesting.
It’s the worst of all. When I put my stock pot outdoors, as I add the bubbler tube I get a whiff of the residue SO2 gas bubbling out of the container. I can feel my bronchial swell up and firm mucus instantly. I hate SO2 gas. But I love how it brings down the cleanest gold.
Cooling the aurochloric acid solution with ice is nice, but I think it would be interesting if you showed the temperature after cooling (and the result might surprise you as well).
That shine there at the end of the video does it. Makes it all worthwhile. At least it would to me. I can look at the color of pure gold all day long. Pure gold is always the same color. The sulfur dioxide gas does the trick, doesn't it? Takes a little extra ingredients but the outcome can be expected to be awesome, I reckon. Chemistry is amazing. Watching the solution go clear then dark. No wonder we used to think that was some sort of magic. Perhaps it is. 😉 Thank you for taking is on the experiment with you. I do enjoy it. Our best to the Mrs.!
Copper works well. I’ve done it before. I’d stay away from brass. Brass is an alloy of 85% copper and 15% zinc. For some reason the zinc causes the inquarted gold to crumble to a powder and creates problems separating the silver solution from the gold,
It might be exhausting, but you could do a live chat once a month for a couple of hours. Then most of the refining questions can be answered for future refiners.
Is their a book on Amazon you would suggest getting for not just learning how to do this but also teaching you the fundamentals of why each step works?
You know what? I FEEL welcome back to your channel. I can’t finish it right now, but you’ll get at least two full views on this video from me this weekend.
It depends on how refined you want the coin to be - like Pieces of 8 or Roman Imperial Coins or like modern coinage. The former two are relatively easy - as long as you do not insist on having precise coin weights. The latter gets much more expensive and complicated, since you have to roll silver sheet to the proper thickness, then punch out silver blanks before stamping them using a hydraulic press.
Me: "High school chemistry was kinda cool and fun." Sree: "Hold my gold bar and watch this!" I would have been *way* more interested in chemistry class if I had these videos to watch.
Really appreciate what you present for the refining folks in your videos. Very informative and done in a very professional manner. I do have a quick question for you where do you source the nitric acid you use for the refining process? Do you buy it locally?
Another hypnotic video, I love it! The love for gold make part of our DNA, for sure! Sreetips, a question: Do you keep the copper? I saw in an old video that you make it to cement on iron in a plastic bucket, and at the end what? You drop it, or do you sell it? How many kilograms of copper do you cement on iron each year?
Love the videos. Thanks! Probably asked this plenty, but I'd love to see some of the rxn molecular formulas flashed up on the screen as you're talking...
What is the net profit from this video. You've given the value of the finished product, but not the cost of the chemicals, time, and raw materials. you also have a wide array of durable and consumable goods (stirring hot plate, beakers, filter disks, etc) that someone wanting to start doing this are highly unlikely to have lying around the house. What would be the estimated start up cost of acquiring these tools?
I’m not sure, because I’ve never taken the time to calculate it. My profit is in gold. Thankfully, I don’t have to resell it. I keep the gold. But if I need some paper to pay bills or buy food and gasoline, then I sell a little if my metal.
As many times as I have watched your videos, I feel I could recover/refine gold and silver myself now. Do you know a book to recommend to me that has refining techniques and or formulas calculating the carat gold with sterling silver inquartation?
“Refining Precious Metal Wastes” by C.M. Hoke free pdf download all over the internet. But first, get a fume hood. No way to safely do these reactions without one.
I don't think I've clued in on this before, but you mentioned the blue color in the nitric comes from copper.. and I always thought it was the silver.. but your silver cells start off with clear silver nitrate.. so then, is the silver nitrate clear, but there always is some copper in the base metals that cause the nitric boils to end up with a blue color? And if it is slightly greenish, that means a bit of gold also dissolved? Did I get that right?
Copper in solution is blue. Pure silver in solution is colorless, like water. Gold in solution is yellow, so are platinum group metals. So if a solution turns green then it’s probably blue+yellow = green.
@@sreetipsOk got it! Thanks! So I think every time you start a nitric boil they start out blue (or blue-ish).. so that indicates there is always copper included in the base metals of karat gold?
SMB does the same thing, but it adds the chemical directly in the gold solution. Bubbling pure SO2 gas (with no other compounds added) is a much cleaner precipitation.
I don't know if it's just me but I could sit and watch you sort scrap jewelry and talk shop for hours. It's cool to see the other side of what you do once in a while.
You should do a video where you do just a few nitric boils, just a single refining, no hydrochloric boils, ect, and do a batch of each like that with a few grams each and send them off to be purity tested to show how much the extra time and steps you take matter. I think it would be a fun experimental video.
Agreed!!!
Also a bit of inquarted gold. Just to see what's in there.
Haw You get away copper and ade basemetals from sil ber?
@@purjepurpuri833he did it with the gas and acid.but you can also do it on the forge but way harder and loose more material..
While informative, the 3rd party lab report, whether XRF or gas chromatography would be highly cost prohibitive for him. That is, unless we were to start contributing towards his efforts. I know I’ve found this channel highly educational.
I really liked this one, the nitric acid boils time lapse was perfect and the SO2 gas precipitation is always a delight to see. And that ingot came out so pretty!!
I want to see the 'deadly fumes' title card on a video where Sreetips does nothing but make lemonade from scratch.
Or cook a batch of chili
He made a fried egg sandwich a couple of years ago and left in the fumes title card.
@@Heymrk😂
😂😂😂😂
Muffins
Sreetips reserves the Sunday Gotomeeting melt dish for special occasions like the SO2 precipitation. While i like watching the StumpOut method, the SO2 seems to give a ‘cleaner’ result. That bar turned out beautifully
I never get tired of watching gold drop out of solution. Its just beautiful. Thanks once again for taking the time to share
I never get tired of watching this. I have made steps to do this sort of refining myself but it is vary costly to get started
It’s out there, but it won’t just fall in your lap. Mrs sreetips was up at 3am. She just left about 5am heading out to search for precious metals. Saturday is her big day. But you got to know when, where and what to look for. This comes with experience. There’s no substitute for experience. Get up early, be there first when they raise the garage door for their sale. Quietly, away from others, ask the seller if they have any jewelry for sale. You’ll be surprised at what you can find.
My 5 year old daughter and I love sitting and watching your videos together. Thank you, sir
Excellent, thank you, both!
Thank you so much for the SO2 precipitation! The surgery went well. I'm hoping for a speedy recovery. Your videos add infinitely to my morale You are the best!!!
My question is : would an aquarium bubbler stone work better, since it is a more diffuse application?
@@adrianstanton2652
Better? You saw for yourself that it took less than a minute to precipitate all the gold. How much _"better"_ is there?
No, the delivery tube must be at least 1/4 inch or else it gets clogged up with gold.
David, I did the SO2 because you requested it. Hope all is well and a speedy recovery for you.
@@sreetips thank you for the answer. I am just trying to understand the mechanics of the process. The nuances are what make it work. Thank you for the open dialog and the experience you share with us.
Congratulations on 250K subscribers. I enjoyed your 200K video. The hand stamped silver bar was nice 👍
Probably one of the coolest things I've seen in my short 33 years. Chemistry has always fascinated me in ways nothing else has 👍👍👍👍 awesome video, thank you!
I concur, Mesmerizing experience
Alchemy?
Thanks! your explanation of why you add the silver finally makes sense
Nice job Mr S.
Just a thought for you... here in Philippines HNO3 is very expensive, so what we do is collect the NO2 (evolved during the process-red fumes) using a vacuum adapter into a condenser (liebig) at 5C and then from there into a gas trap (in Ice water), with some H2O2, this produces very little, if any fumes as all of the NOx is converted back to Nitric acid to save money, also this has the advantage of not rusting up any metal (in the fume hood- stands brackets, etc) from the NOx vapours. Would make an interesting Video, but you may need a larger fume hood to locate the glassware.😊
All the best
That sounds like a good idea. The acid fumes are dissolving my fume hood.
Very good idea¿¿¿¿ GREAT IDEA¡¡¡¡
That must suck mightily. Don't you guys have nitrates over there? I'll take my crusty brown exhaust ducts over a tedious nitric recovery any day. I do scrub my nox through a bubbler and sometimes use the weak solution that results, but to rely on that as a source... man I do not envy you.
I haven’t watched any videos in awhile so this is the first time I have seen the light on the Timelapse of diluting the pure gold. Can see it way better now nice touch
It would be interesting to see the weight difference in the gold at different stages like after inquartation weight, to after the nitric boils weight to final product weight.
I know it would waste time with drying it all off several different times but you seem to be a fan of the scientific process and it might shed some new light on how little gold is lost throughout the refining process.
I know every new fan asks the same questions because once upon a time i was that fan saying "youre pouring the gold off in your waste container! " haha now i know that Sreetips wastes nothing 😊
I think you're still that fan.
I'm guessing the wet weight isn't going to be substantially higher. Gold is twice as heavy as lead and nearly identical to tungsten. And not only that if it is precipitated under the same conditions will probably always have a similar wet vs dry weight after decanting.
Beautiful video mr Sreetips!
This was a very good overall view of your process, very well filmed and good and clear commentary.
Thank you!
Every time.. i feel like im a kid, sitting in front of rhe tv, waiting for Mr. Rogers. Thats how i feel with you Sreetips😂 Thanks for letting me be i child for a few MINUTES 🎉 My 12 year old son loves your content. We wait patiently for the SMB, only to say "sodium metaby sulfate " together 😂😂😂 GREETINGS from SWITZERLAND
Love this comment.
That is awesome, thanks to you and your son.
That was one of the most energetic first Nitric boils I've seen you do in a long time
I would love for you to talk about the differences in the types of acids used in your videos. The strength comparisons and any other details that are relevant would be appreciated. Also discussion about the weight of the gold versus other material when rinsing and pouring off the waste. It sometimes seems that you would be pouring out the gold but I assume it is not suspended and that it is other stuff that is poured into the waste container. Of course I know that some does and you will process it later but I think it would be good information to include. I’m sure you feel like you are always repeating the same things so that might be something new for you to talk about. I love going on RUclips and seeing that you have posted a new video! Never miss any! ❤
Thank you. There is so much junk posted. I’m guilty of spending too much time looking at it. I strive for educational and accurate content for the benefit of those who genuinely want to learn about the fascinating world of precious metals refining.
Gooood evening from central Florida! Hope everyone has a great night! 😎
Goooood evening!
my first time I see gold precipitated with SO2 gas
a professional job
I like how you and mrs sreetips complete each others. Even if she's more behind the scene, here work stays vital for your channel. She hunts the raw ressources and you refine them. Also I really like when your videos start with your 10,14 and 18k boxes in front of you. I also like to see the work you do to sort them out. If there's no marking on the jewels is there another way to differenciate the gold purity? I think I remember you saying mrs sreetips can see the diffence, but other than her talent is there a stuff of a color chart or something to help with that?
at 2:50 he's scratching some gold off and running acid over it to see if the acid can dissolve the gold. The acid will be able to dissolve certain karat but not others which will help him determine what the karat the gold is. (I only know this from binging Sreetips videos)
Hello. After looking at thousands of pieces of jewelry over the years, it’s possible to distinguish real gold from “fake gold” with just a glance. This comes from experience. There’s no substitute for experience. The acid test can be used to determine the purity of the gold as well.
Congratulations Sreetips. The methods and techniques you used in refining this gold produced .99999 fine gold and yes, their's such a thing as 5 - 9's fine gold. Cool stuff my man. Cool stuff.
I thought your red 10K bucket was your “I don’t know” (IDK) bucket.
I love when your channel makes it to my algorithm, always a good change of pace. Thanks for the video.
First 👍's up sreetips thank you for sharing 😊
I'm confused, the bag says CVS and not sreetips. You ok big guy? 😅 😉 (hey, it's Friday lol) silliness aside, that's quite a haul!
Another great video! Love to see you using different techniques. Have you ever considered setting up a Discord account for people to come and ask questions. Would be more centralized and easier to respond to then all of your different videos' comment sections?
Yes, but decided not to. I already feel overexposed on the internet. Like to keep it simple. Light and airy with no pressure to perform.
I think a traditional forum or bulletin board would be a better fit for a subject like this. Sites like that can be archived and searched.
There is at least one refining forum where Sreetips is a well known and respected member. @@DFPercush
Very nice. Gold chemistry really is facinating. As an undergraduate, I made a lot of batches of colloidal gold from Aldrich's Hydrogen tertrachloroaurate. I worked with a bunch of post-docs in Michael J. Natan's group at Penn State doing a lot of surface chemistry. Got my name on a few papers outta the deal.
Seeing those acids reminded me of always cleaning our glassware with aqua regia and pirhana. Well, no piranha on the glass substrates (we used microscopes slides). It etches the glass and would aggregate the gold colloid...defeating the whole purpose of making the colloid in the first place :)
I made colloidal gold by accident once. Added too much silver for inquartation.
Thank you for the continued education. Would you recommend any particular books that may help the thought process/understanding ?
“Refining Precious Metal Wastes” by C.M. Hoke -free PDF download everywhere on the internet.
@@sreetips Thank you.
Gotta love a new video from Sreetips, one of only a handful of channels on the 'tube where I know I can give it a like before the video even starts.
Thank you
Thanks for the great content! Have you ever thought of rolling your pure gold bars out to a uniform thickness and using a custom branded coin or bar die? Maybe 1g, 10g, sizes. Might be a fun series of videos.
That would be awesome. Introducing; THE SREETIPS COIN.
@@sreetips Indeed! There are places online that can make die’s for you.
Great idea.
I’ll check into it.
Whole new levels of ass kicked in this one. I love this stuff. You're the Admiral of Aqua Regia.
Thanks for your efforts, I appreciate ya.
I cant believe what I just watched here... Outstanding. So so so so many questions, but ill first look for the answers in your other videos assuming you have a "FOR DUMMIES" set of videos that explains all this in detail with whys and hows addressed.
Loved it.
Thank you!
That was one of your best pours I've ever seen BTW. Nice job!
I just watched again. Couldn’t take my eyes off. Thirty six minutes flew by like ten. Those bubbles turned out to be tiny specs of borax from the melt dish.
I look forward to you uploading. Absolutely love your channel from the first time I found it.
Excellent!
I didn't know gold could be put into solution without nitric acid like that. Looks like a real good way to do it. I would also think it would have a cost benefit too. Nice.
I’ve used drug store 3% hydrogen peroxide, but it takes a lot more of it. Plus, I think you can boil it down to concentrate it. But I’ve never tried it.
@@sreetips I've heard you can concentrate it by freezing, at least at lower concentrations. It gets weird at high purity. Explosions and Fire did an episode all about concentrating and purifying H202. (Or maybe it was his second channel, Extractions and Ire.) It's a pretty interesting watch.
@OP - it really shows you what the nitric acid is doing. It's not the nitrogen, so much, it's the oxidizing power of the nitric acid that's really doing the work. A strong oxidizer makes the gold actually able to react with other things, kind of like a catalyst. Even though gold won't form an oxide on its own, the oxygen kind of "pulls" on the atoms just enough to convince them to bind to something else like chlorine, one of the most reactive electro-negative elements. Flourine would probably work even better, except that HF is so deadly no one wants to work with it (and it dissolves glass). I think Periodic Videos did a video on aqua regia explaining it more scientifically.
@DFPercush I was talking about, on about 22:30, he didn't use nitric at all, used only H2O2 and hydrochloric acid to bring the gold into solution.
@@putteslaintxtbks5166 Yes I know. I was pointing out why there are other oxidizers besides nitric acid that can do the same thing chemically. Even though nitric acid is the most common method, it's really the oxygen that's the reason it works.
I love watching your videos, it makes me wish I worked harder at school though.
Watching this video was very informative an educational. The different color changes of liquids to the finished produce was amazing.
Sure it did look fantastic , with your expertise any scrap gold becomes pure gold
What a beautiful bar!!! I could watch this a dozen times I tell ya… and I just might. 👍
I enjoy watching you grade your jewelry there. I could just watch you do that all day. Unfortunately,
most people don’t want to see that. It would be cool if you just had live camera park somewhere in your shop. Live streaming! I don’t know. I’m just a nerd! 😂
Picking through it has a therapeutic effect.
That is a beautiful gold bar, sir :) A pleasure watching you make it... almost like watching an alchemist doing weird and wonderful stuff that yields gold in the end :)
So.2 gas is my absolute favorite way to watch you precipitate the gold . So very cool
You are a modern day Alchemist!
I like the special lighting you used.
I really appreciate your videos. Thank you for your time and your knowledge. Your are very good teacher.
Its so dam neat that you keep gold around and when you need cash you just spend the day refining gold and by the time your done you have ten thousand bucks to smart my friend
I swear, the hydrogen peroxide is the best. The gold in solution looks brighter and clearer. The gold comes shinier. Live this
Some of the old stuff is still very beautiful.
You are welcome, the pleasure is all mine. Pretty spiffy!!! Thank you Sir!👍👍🤟
Wow!! Very impressed! I hate to bug you with dumb questions but I need to! I was given a small container filled with ingots. It is obvious most of them have good amounts of gold in them with what looks like mostly copper. Some are a rose gold mix of the two while others have distinct Sections of what is obviously copper and distinct sections of much brighter/ higher karat gold! So far I have sat them in a mixture of 2 parts muratic acid to one part hydrogen peroxide and some heat. I kept the heat between 80/110 degrees F. I let them soak until the reaction fazed out. Pulled them out and rinsed them with water and baking soda to neutralize the acid leftover. Ok I should say this is my first time ever attempting those abs to be honest I had no idea what was going to happen. I understand that the process to do it the right way a lot more entailed, and requires a lot of knowledge and probably experience like you have sir. To my surprise, though all of the pieces have shrunk down quite a bit and the sections of gold in these ingots are much larger and more defined, and very very bright gold. Which appear to be a high carat. I am still not separated completely from the copper. My question to you is am I royally messing this up? Also, in theory, could I continue to do the same process and get rid of all the copper, and be left with the gold, that is in them? Again, I am very new to this, and would appreciate any knowledge that you can pass down. If you know of a way that I can accomplish, pulling the gold out of these ingots with minimal expertise and equipment, would you please enlighten me? I am very much thankful for your time!
Any gold that I work with: test to determine karat. Inquart with proper amount of silver (or copper). Part with nitric. Then refine with aqua regia.
So2 gas is scary stuff! I work repairing Sulphur storage tanks as a welder. We have to be under air because the tanks always catch fire and release so2. A tank vented so2 at a plant I worked at, and the gas blew over the plant and ended up permanently damaging the lungs of some workers.
Agree, of all the gas that I’ve made for refining, SO2 is the worst. Even a tiny whiff while pouring a waste solution into my stock pot, cause my bronchial tissues to swell and interfere with breathing for a long time after. Chlorine is bad, but it doesn’t last as long as SO2 discomfort.
Thanks again. Always a joy watching your video's. 😎👍🇨🇦
It would be cool to see the syrup boiled down to truly "dry" crystals that you could gather in a small beaker just so we could see crystalline chloro auric acid in a similar form to pure silver crystals.
Always worth watching. I’m not a refiner or anything. I just really love the alchemy.
That was one of the best pours I've seen. Very nice!!
43.1g about £2,159 flipping ek, well done. Id love to do this kind of thing, but dont have the technical know how. Thank you for your videos, i find them interesting.
I always love seeing the forbidden apple juice after you filter it
Hello street tips, you may not remember me cause I've been out of refining for a couple years but now I have my lab built the right way and getting back into it! I live in Maine an really only do IC chips and foils but have done ceramics before. Just wanted to introduce myself and say that's a mighty pretty bar!!
Hello!
rising pH makes this gas purification method look like a bit of magic.
The final step of melting down the gold. If you presented that stuff to me before the melting and said this is pure gold. I would have laughed and called you a snake oil sales man. Not sure if it looks the same in real life but on camera it looks like plain old mud/used coffee grinds. You could literally leave that stuff out in the garden next to some compost and no one would think it was pure gold. Until it gets melted down. Thanks for sharing the step by step process. Very interesting.
So glad you do this under a fume hood, sulfur dioxide gas can be so dangerous to inhale
It’s the worst of all. When I put my stock pot outdoors, as I add the bubbler tube I get a whiff of the residue SO2 gas bubbling out of the container. I can feel my bronchial swell up and firm mucus instantly. I hate SO2 gas. But I love how it brings down the cleanest gold.
It must take some experience and a good eye to not only sort the jewelry but to also spot what to buy. Kudos to Mrs. Sreetips!
Comes from years of experience. There’s no substitute for experience.
Cooling the aurochloric acid solution with ice is nice, but I think it would be interesting if you showed the temperature after cooling (and the result might surprise you as well).
You have refined your prosegers sence I last veud one of your video's. Every nice. Well done.
Amazing how much your edeiting and photography have improved. Well done you! (Refining was always 1st class)
Thank you!
The purple reside on the melt dish is vaporized gold due to melting with an open flame. If you melt with your furnace you will get more gold back.
I have to say, that was a tremendously interesting process.
Thanks
Great stuff!! Can we please do an incineration and recovery of precious metals from that shirt mate before it falls to bits? :)
Andy, I’m going to list it on my eBay site
That shine there at the end of the video does it. Makes it all worthwhile.
At least it would to me. I can look at the color of pure gold all day long. Pure gold is always the same color.
The sulfur dioxide gas does the trick, doesn't it? Takes a little extra ingredients but the outcome can be expected to be awesome, I reckon. Chemistry is amazing. Watching the solution go clear then dark. No wonder we used to think that was some sort of magic. Perhaps it is. 😉
Thank you for taking is on the experiment with you. I do enjoy it. Our best to the Mrs.!
Hi Mr. Sreetips, i have a question : would inquartation work with other metals ? And if yes which ones ?
Copper works well. I’ve done it before. I’d stay away from brass. Brass is an alloy of 85% copper and 15% zinc. For some reason the zinc causes the inquarted gold to crumble to a powder and creates problems separating the silver solution from the gold,
@@sreetips Thank you very much for your answer. And keep up the good work i love your videos !
We ❤ hydrogen peroxide. It's so safe and environmentally friendly that t Mary Janes /Hydroponics grow stores sell the good stuff by the gallon.
Don’t let the H2O2 touch your skin or anything flammable.
It’s useful, but it’s hardly ‘safe.’
Take care with that stuff.
that silver nitrate jar is looking pretty full, i smell a silver cell video coming soon
holy cow i have never seen such a fresh and new melt dish on the channel before
@@gfhrtshergheghegewgewgew1730Watch more vids. He breaks out the ‘Sunday go to meeting’ new melt dishes from time to time.
I wonder how many people would be happy to be a patreon so they could ask you questions in there.
Everybody else is out there recycling newspaper and milk jugs, meanwhile sreetips is recycling gold. 💀
Most people are clueless about gold.
@@sreetipsnice work!
It might be exhausting, but you could do a live chat once a month for a couple of hours.
Then most of the refining questions can be answered for future refiners.
he did a video showing it wouldnt just sit there without encourting. It dissolved 95 percent of it but took more time and nitric acid
Is their a book on Amazon you would suggest getting for not just learning how to do this but also teaching you the fundamentals of why each step works?
Are you talking about CM Hoke’s book on refining?? If you are, it was on Amazon
“Refining Precious Metal Wastes” by C.M. Hoke - free PDF download all over the internet
The idea of being your neighbor is both exciting and terrifying.
Keep them coming ! Great video.
You know what? I FEEL welcome back to your channel.
I can’t finish it right now, but you’ll get at least two full views on this video from me this weekend.
Hello Shannon!
@@sreetips 👊❤️
Excellent, thank you.
It would be cool to design your own silver coin and make them from the silver you make
A “sreetips” silver coin. Excellent idea!
It depends on how refined you want the coin to be - like Pieces of 8 or Roman Imperial Coins or like modern coinage. The former two are relatively easy - as long as you do not insist on having precise coin weights. The latter gets much more expensive and complicated, since you have to roll silver sheet to the proper thickness, then punch out silver blanks before stamping them using a hydraulic press.
This is so well done and with such a friendly willingness to teach thanks new subscriber can’t wait till I can try this!
Welcome to my channel!
Always love the SO2 drops! Great looking bar!
Me: "High school chemistry was kinda cool and fun."
Sree: "Hold my gold bar and watch this!"
I would have been *way* more interested in chemistry class if I had these videos to watch.
Really appreciate what you present for the refining folks in your videos. Very informative and done in a very professional manner. I do have a quick question for you where do you source the nitric acid you use for the refining process? Do you buy it locally?
Any chemical supply will have nitric acid.
Does all jewelry have some indication of gold purity? Can those marks be anywhere? Thanks!
Most makers will put a mark. But thieves will stamp fake gold. You must learn how to tell the difference.
Excellent video sir this was very enjoyable and informative thank you for sharing this six stars sir
Last couple of weeks? It is magic!
Another hypnotic video, I love it! The love for gold make part of our DNA, for sure! Sreetips, a question: Do you keep the copper? I saw in an old video that you make it to cement on iron in a plastic bucket, and at the end what? You drop it, or do you sell it? How many kilograms of copper do you cement on iron each year?
It’s waste, can’t even give it away. So I toss it
Nice video sreetips! I love that your lab smock looks like you've been through about a dozen disasters 🤣
amazing, that's one heck of a side gig sir.
Love the videos. Thanks! Probably asked this plenty, but I'd love to see some of the rxn molecular formulas flashed up on the screen as you're talking...
I’d like to be able to add them, but I don’t know how.
What is the net profit from this video. You've given the value of the finished product, but not the cost of the chemicals, time, and raw materials. you also have a wide array of durable and consumable goods (stirring hot plate, beakers, filter disks, etc) that someone wanting to start doing this are highly unlikely to have lying around the house. What would be the estimated start up cost of acquiring these tools?
I’m not sure, because I’ve never taken the time to calculate it. My profit is in gold. Thankfully, I don’t have to resell it. I keep the gold. But if I need some paper to pay bills or buy food and gasoline, then I sell a little if my metal.
As many times as I have watched your videos, I feel I could recover/refine gold and silver myself now. Do you know a book to recommend to me that has refining techniques and or formulas calculating the carat gold with sterling silver inquartation?
“Refining Precious Metal Wastes” by C.M. Hoke free pdf download all over the internet. But first, get a fume hood. No way to safely do these reactions without one.
I was never taught chem and wish i were but you should be a chemistry teacher fr
I don't think I've clued in on this before, but you mentioned the blue color in the nitric comes from copper.. and I always thought it was the silver.. but your silver cells start off with clear silver nitrate.. so then, is the silver nitrate clear, but there always is some copper in the base metals that cause the nitric boils to end up with a blue color? And if it is slightly greenish, that means a bit of gold also dissolved? Did I get that right?
Copper in solution is blue. Pure silver in solution is colorless, like water. Gold in solution is yellow, so are platinum group metals. So if a solution turns green then it’s probably blue+yellow = green.
@@sreetipsOk got it! Thanks! So I think every time you start a nitric boil they start out blue (or blue-ish).. so that indicates there is always copper included in the base metals of karat gold?
Correct. If it’s green then theres probably some palladium going into solution with the silver and copper.
Great job, as usual Sreetips! Does the gas precipitate the gold compared to SMB? Both are pretty to precipitate out gold!
SMB does the same thing, but it adds the chemical directly in the gold solution. Bubbling pure SO2 gas (with no other compounds added) is a much cleaner precipitation.
@@sreetips Does that make the end product a little more pure?
According to some, gas precipitation produces some of the cleanest gold possible.