MY wedding ring was 12k white gold and was 5.1 grams. My first foray into refining white gold was done with it since I figured I wouldn't need it any more what with no longer being married. I tried to sell it off once I was separated but was never given anything close to a decent price and so it just sat in a drawer. But when I finally got around to working with it I am proud to say that I managed to recover 2.49gm of Au and 2.47gm Pd. I melted the Au into 2 1gm beads and one gave them to one of my daughters who made a pair of earrings from them. The Pd I still have in powder form and one day I hope to make something from it. Oddly enough as much as I don't miss the ring I don't feel right selling off the metals and it did my heart good to see my daughter use the Au as she did.
Fascinating & informative. I never knew about those colored golds having alloys. Your one of my top favorites on You Tube. Thanks for the great videos!
very coincident! i stumbled in this white gold video by chance. now I will the composition and better understanding on white gold. thanks Sreetips, bob
Another amazing video. Ive actually been saving my white gold until i saw a video on the subject. If i had the cash to buy that bar of gold I definitely would. I just wish there was like a tip jar for videos or something. Id be happy to tip a few bucks your way anytime one of your videos helps me out, which come to think of it, might come up to the value of that gold bar.
You have made me a hobbyist... it's still just vicarious, but I will be ready. You would love this video I saw where someone had, essentially, mined the sidewalks of 5th Avenue, outside of every jeweler he vacuumed up all the silt in the cracks of the sidewalks. Sooo much was recovered. I can't even imagine what the storm drain would've had in it!
Fantastic video, I really appreciate them. Keep up the good work! If you ever get around to casting your 999 silver into bars to sell them, I would probably buy a few!
I've got lots of silver, but I'm saving it for my chess set. Plus the spot silver market is just too low to be selling a whole bunch of silver right now. Thank you for watching.
Well for sure I know now why you use the first method as this one here is very much more work time-wise and what do they say TIME IS MONEY lol thanks mate great Vlog
Another phenomenal video from start to finish... very informative and interesting to watch. I am always learning something new watching your videos. Question, I’ve watched you do these gold refining videos a few different ways. Is there be a difference in the purity of the gold if you just dropped the gold with just SMB as apposed to using copperas or oxalic acid to drop the gold? Which method do you prefer to use to drop the gold (SMB, copperas or oxalic acid) or do you just go with what you have on hand when your refining?
Eric, three nines gold can be produced all day long with just SMB. For some refinings, such as Gold Filled, where some junk tends to follow the gold, it may be best to use a different precipitant for the second refining. For example, SMB will drop platinum, if present, with the gold. But oxalic acid or copperas won't. But oxalic will drop copper and tin if present, SMB won't. Copperas could contaminate the gold with iron, but SMB won't. Each precipitant will selectively remove contaminants that the others may not remove. But refining straight yellow gold, inquart with silver and two SMB refinings usually gets the gold very clean. Oxalic acid is like a polishing step. It's used when the gold is already quite pure, like in this video. You can see by the color that the gold is already high purity after parting with nitric before the first aqua regia treatment.
Some day it would be nice to have you show your safety equipment to show what is required to do these process's refining gold and silver safely. Really enjoy watching your videos!
Hello, I have Gold Bars & Diamond Stones for sale, Can you help us to look for Gold bars/Diamond buyers in your country and i promise to be giving you 5 % ofany sale please ?. ganddmininggroup01@gmail.com Peter.
@@sreetips; Thank you for your prompt reply.i very much appreciate that, i didn't know there was a specific reason for the oxalic acid until now. and makes perfect sense for producing the upmost quality and purity that can be obtained.thanks once again, your vids are very informative and interesting
Question: This might be a noob question...At 23:20 you "called" it and said you have all the base metals dissolved, leaving you with the the final product, gold. At 24:13 you add Sulfuric acid to dissolve led along with the HCL solution to dissolve gold. Should these two steps not be done separately so led could be precipitated out of the solution before adding HCL to dissolve the gold to provide an even purer gold button? I understand this question would make me sound like a complete noob, but for me to understand I need to know. Thank you for all your high-quality videos, it is really informative....never mind, answer is at 31:10
Professor oxalic acid is to precipitate gold, as well as the metabisulfite? I thought the oxalico was to purify the royal water to eliminate impurities. Thank you very much I am from Brazil and we speak little English, I do not understand what you speak, I will translate on gogle. Thanks.
There should be no trash or impurities in that BRAND of Oxalic acid,, I called the company 3 years ago and asked what the purity of their product was and they said it was 99.8 - 99.9 ,, He went on to say that they take great integrity with their work and product
I have seen other refiners on youtube just throw the filter paper(s) in with the final melt, would this effect your final purity if you would have included them?
I recently discovered you can test gold to see if it's real and even determine karat using nothing but a graduated cylinder water a scale and a calculator by weighing it and determining its volume through displacement and using its weight and volume to determine that it is gold and approximately what karat using volume and weight and some relatively simple math because we know the density of pure gold and can determine the density of the different karats through extrapolation or find it online somewhere which I really like because I work within a tight budget so any money I can save on testing supplies if they aren't necessary can go towards something I can't get around like buying glassware or reagents or scrap gold even when I can find a deal on it and possibly one day have enough to try out my idea for a gold brass alloy that is low karat but still looks like higher karat gold and still retains the other properties of gold that make it ideal for jewelry
How can you tell if the white gold has lead cause I got tons of white gold I find nuggets everywhere and it all passes 18 k gold test but I'm afraid it may have lead well some of it cause some is very heavy and some light for the size
I knew you used oxalic acid to percipitatate gold once so got back to it... I saw you used a huuge amount of Oxaldihydrate... It's very potent stuff. As you've seen. You really need to use distilled water indeed else Calciumoxalate will pircipitate from the water.
I would think the Platinum Group Metals in solution would almost certainly at least in part be rhodium but were you ever able to determine what they were exactly if they were present?
im curious what this process would do to white gold with a bit of rhodium polluting the PGM or rhodium plating. The hot nitric shouldn't dissolve rhodium, but the aqua regia should, right? So if i understand it right, any rhodium would pass through the filter with the gold. I'm not sure about the rest of the process, but with rhodium being over $10,000 an ounce im very curious.
Yoda, there’s rhodium in my filters and in my stock pot. I’m sure of that. I just haven’t figured out how to get it yet. But I will and then make a new video
How important is the color of the white gold alloy if it's rhodium plated? Does rhodium plating cover any other colors like yellow or Rose or does the true color bleed through the rhodium plating?
Sreetips Is there a way I can contact you privately? I have a friend in the demolition business and am wondering if it may be profitable to collect electronics from the buildings. Thanks and awesome videos!
I think I can simplify your math page on 11:30 a lot for you. If we want 6k gold then 0.25TW=PG (TW=Total Weight) Calculate PG and insert it into there and solve for TW. Now TW-GR=AS
Hey Mr Sreetips, just a question.... what if instead of inquarting, you dissolved everything in Aqua Regia at the start, then precipitated the gold and god knows what else out with the bisulphite, washed off the chlorine, then treated with nitric acid to dissolve the base metals, leaving the gold behind ????
@@alienrocketscienceshared8454 I’d be cutting that pavement up and putting it in a rock crusher to get that back. Ugh how heartbreaking. Thankfully I’ve never had any major losses like that when refining. 🤞 fingers crossed I never do.
@@alienrocketscienceshared8454 dude, thats why you gotta have a large bin or kids swimming pool or something in n event like that, hell lay out towels everywhere so you can just dissolve the whole towel.... I would have had a pickaxe and or a jackhammer so fast, and would have just thrown the damn asphalt and concrete in some aqua regia!! how much was lost?? I feel that pain even now...
whens the next time you'll be doing another gold refining video? (subscribed on this video btw) watching the different amounts of acid react with the gold and the repeated process of refining and expelling all the base metals/other unneeded precious metals from the gold is satisfying to watch.
Yes, no problem. They “color” gold by adding different portions of base metals to the gold alloy. For example, “rose gold” has the same exact amount as “yellow gold”. But it looks more red because they add more copper and less zinc to the “rose gold.”
Hello, I have Gold Bars & Diamond Stones for sale, Can you help us to look for Gold bars/Diamond buyers in your country and i promise to be giving you 5 % ofany sale please ?. ganddmininggroup01@gmail.com Peter.
Hi Sreetips, I was wondering if you could incinerate the tap water off, instead of chancing that some was left in and if that would do the same but better rinsing? I was curious as well in alot of videos a ton of folks use hcl first to rid the base metals out, then they always seem to add nitric after they rinse it from the hcl; the thing that seems to happen more often than not is that some hcl is left and makes some form of chloride salts; if after rinsing the hcl would it in your opinion be better to incinerate it red hot then do your nitric acid? I was just curious thinking that would for sure rid it of all hcl that would be left in it by accident or such. Thank You for your time and would love to see the box of ash waste as well. :) Love your content, you're the best on UA-cam in my opinion for thorough content and doing it right the first time. :)
the nitric is the troublesome acid that needs to be driven off or used up, the hydrochloric is actually really weak in comparison, and it reacts with silver to form silver chloride which is a thick sticky mess that will "gum up the works". also Hcl cant really dissolve any of the base metals by itself from what i understand, which is why he uses pure nitric and avoids Hcl until he is ready to make aqua regia. i only ever see him rinse with hcl sometimes but the nitric is the real workhorse and the extremely powerful reagent of the bunch... in fact sometimes after rinsing a bunch of time with water, he will add some hcl and instantly start dissolving gold just from the very tiny amount of nitric left after all the water rinses...the only reagent that seems stronger than nitric acid is high percentage hydrogen peroxide, that stuff just shreds anything in its way, lmao!
What tips would you have for a beginner that wouldn't have all the lab equipment and chemicals. Anything that could be done with household stuff and old coffee pots and mason jars?
Back when I first started I used a coffee pot because they could be heated. I used 3 liter jars from the thrift store (still use them to decant my stock pot). Pyrex measuring cups work good to heat things in as well. I have clear glass saucers that I use as cover for my beakers. Good luck.
Thanks, Legend! Didn't you forget white gold holds most often Silver? Which might nearly not need that much addition of Silver? I know this video is old but since then the same?
That's strange. Here, "white gold" is an 18k gold and plated with Rhodium. Maybe an "18k" of Au/Pd but definitely electroplated with rhodium. Jewelers will have tiny pouches of rhodium powder, maybe 50mg, dissolves into acid to use for plating. Customers often bring back their white jewelry to be re-plated.
i dont understand how from 98.7g 18k you paid $3700, refine it and you get 31.2g pure gold but now its worth $1,990.88 @ todays $64.00 per gram. don't get me wrong i enjoy your videos they are very educational but thats an expensive lesson
Would it be OK to use cold AR to extract gold from a big 15kg bach of industrial scrap in a teflon barrel? It would take ages to do it in a beaker. Did 1.000g test and it gave 1.38%. So cold AR and just let it sit, possible?
It sounds like a lot of work, a lot of waste that must be treated, for a small amount of gold recovered. These are the reasons that I don’t do much escrap these days.
***SreeTips*** Do you process gold for others? If I have 665 Grams PC fingers and pins already separated from cards and melted using scrap metals flux and borax would I get most of the gold and majority of impurities out?
This is my hobby, I don't refine other people's material. Melting causes metals to alloy together. They don't separate. Refining is the only way to separate the metals from each other.
Soo good work as alwaya I have a qust Afrend disove alloy of gold and ather metals by adding sulferc and nitruc All metals disolve and gold is purifid Can the solution have any pgm,s in it or silver or gold And how can I presitate all that metals Hope you anser me becuse its about 400lLiters of solution
Thank you for the video and insight. I have actually watched several years of them now and various experiments. There is an aspect that I don't understand though, and that is why the gold is first diluted to appox 25% with the silver, and then the silver is chemically extracted back out? Is this just to make it easier to get the small pieces when cooling in the water bucket from the pour, or is there another reason? I am really just curious, not planning to do this but it is fascinating since I was a chemical engineer a long time ago. Thanks
@@sreetips I wonder if the items could just be melted into a bar or thin sheet. Made into an anode of a nitric acid bath to accomplish the same thing? Maybe bubble oxygen or ozone through it as needed. I am familiar with how to do ultra high purity / semiconductor grade analysis for measuring material purity but not sure how it is done in consumer level purity.
@@sreetips It is just an idea, but if the voltage is kept relatively low, then the silver would plate onto the cathode, the copper will remain in the acid bath and the high purity gold will remain at the anode. The nitric probably should be as concentrated and hot as feasible, close to 80 C if that can be done safely. The solubility of the copper nitrates will be nearly 2x at this temperature vs at room temperature, so in theory the excess will precipitate out during cooling and you can keep reusing it. Maybe. It might disintegrate during the process so using your dacron bag around the anode might be useful to capture it. The bubbles coming off of the cathode will be quite strong, I believe that if dissolved in distilled water they would produce fresh nitric acid. Of course this is just an idea, and a lot of things don't work in the real world.
I have an idea for you sreetips. Make an inquartion like this but instead use elctrolysis to remove the silver. Then use acid on the remains to refine the gold.
Sounds interesting. That's not a technique that I'm familiar with. Parting out the silver with electrolysis to get the gold seems like kind of a round about way to go. But it would make an interesting video.
After thinking about it, there would be no way to get all of the silver out with the electrolytic step. More nitric would be required and then the gold would crumble and turn into powder. That would take much longer than just straight dilute nitric treatments.
Hello Sreetips,this is Jesse Few. Have you ever refined keyboard mylars? If yes could I get the link & if no would you mind maybe try to make a video to refine some mylars.
Great video! not sure if this was meant, but you've put your eBay listing under ( Coins & Paper Money>Bullion>Silver>Bars & Rounds ) Surely it should be under gold? Forgive me if wrong, my knowledge isn't the greatest. I just enjoy watching the videos and the detailed process. Thanks
Burning the filter during the melt hurts nothing. But there are some folks, not familiar with these techniques, who may consider burning paper with the gold as a source of possible contamination, even though it's not. Since I was going for high purity and will be selling this bar, I decided to not include the filter paper in the melt just for the effect. It's also the reason I used a fresh melt dish.
Rhodium plating wears off and has to be dipped once in a while. Sterling silver is much softer metal and not usually suitable for setting diamonds. Some folks can't stand the look of yellow gold. They prefer the look of the white metal. White gold, made with palladium, is very beautiful. But most cheap white gold contains nickel. Some folks suffer allergic reactions to nickel. I like the look of pure yellow gold.
MY wedding ring was 12k white gold and was 5.1 grams. My first foray into refining white gold was done with it since I figured I wouldn't need it any more what with no longer being married. I tried to sell it off once I was separated but was never given anything close to a decent price and so it just sat in a drawer. But when I finally got around to working with it I am proud to say that I managed to recover 2.49gm of Au and 2.47gm Pd. I melted the Au into 2 1gm beads and one gave them to one of my daughters who made a pair of earrings from them. The Pd I still have in powder form and one day I hope to make something from it. Oddly enough as much as I don't miss the ring I don't feel right selling off the metals and it did my heart good to see my daughter use the Au as she did.
Bravo - keeping it in the family will sooth you. Nice job, you did a refining on the palladium? No easy task
I have to say that you are very thorough with your refining prosses. Thanks for sharing
I love watching and learning from all your videos!
Fascinating & informative. I never knew about those colored golds having alloys. Your one of my top favorites on You Tube. Thanks for the great videos!
Wow, how your setup and equipment and skills have changed and improved. Bravo!
very coincident! i stumbled in this white gold video by chance. now I will the composition and better understanding on white gold. thanks Sreetips, bob
Excellent!
Super cool to see another precipitation technique.
Very comprehensive! Thanks!
Great video! I'm really looking forward to your refining of the melt table sweepings. Thank you.
I knew you would add to it to make the Troy !! Brilliant shiny purity as always Sreetips great learning and entertainment
I see a sreetips video, I click like, I watch :D Always informative!
same here!
You guys are awsome!
I love watching the old vids as hou can see how professional you have become my friend. Love your work.😊😊
Thank you
@@sreetips thanks be to you kind Sir for supplying hours of educational viewing...🤓👍
Wondered about white gold for a while now. Awesome video and very well explained thank you
Another amazing video. Ive actually been saving my white gold until i saw a video on the subject. If i had the cash to buy that bar of gold I definitely would. I just wish there was like a tip jar for videos or something. Id be happy to tip a few bucks your way anytime one of your videos helps me out, which come to think of it, might come up to the value of that gold bar.
You have made me a hobbyist... it's still just vicarious, but I will be ready. You would love this video I saw where someone had, essentially, mined the sidewalks of 5th Avenue, outside of every jeweler he vacuumed up all the silt in the cracks of the sidewalks. Sooo much was recovered. I can't even imagine what the storm drain would've had in it!
your work is driving me crazy, i really enjoy what i see ...thank you for sharing 👀
A very knowledgeable person. Thanks for sharing.
I've always wondered what made something white gold, excellent video.
Fantastic and instructional. Great vid.
Brave man drain that over the sink with no strainer! ...though the p-trap should catch it...
I would love to see what comes from your box of ash and other recovered “waste”
same ! please make a video next
Me too.
Me Three
Agreed!
Did 2do
Great video, as usual very informative.
Never new there was such thing as white cold, very interesting!
Very cool video. I love to watch all these reactions. See ya in the next one.
Fantastic video, I really appreciate them. Keep up the good work! If you ever get around to casting your 999 silver into bars to sell them, I would probably buy a few!
I've got lots of silver, but I'm saving it for my chess set. Plus the spot silver market is just too low to be selling a whole bunch of silver right now. Thank you for watching.
Well for sure I know now why you use the first method as this one here is very much more work time-wise and what do they say TIME IS MONEY lol thanks mate great Vlog
Another great show thanks Sreetips
👉🏼✊👈🏼
Another phenomenal video from start to finish... very informative and interesting to watch. I am always learning something new watching your videos. Question, I’ve watched you do these gold refining videos a few different ways. Is there be a difference in the purity of the gold if you just dropped the gold with just SMB as apposed to using copperas or oxalic acid to drop the gold? Which method do you prefer to use to drop the gold (SMB, copperas or oxalic acid) or do you just go with what you have on hand when your refining?
Eric, three nines gold can be produced all day long with just SMB. For some refinings, such as Gold Filled, where some junk tends to follow the gold, it may be best to use a different precipitant for the second refining. For example, SMB will drop platinum, if present, with the gold. But oxalic acid or copperas won't. But oxalic will drop copper and tin if present, SMB won't. Copperas could contaminate the gold with iron, but SMB won't. Each precipitant will selectively remove contaminants that the others may not remove. But refining straight yellow gold, inquart with silver and two SMB refinings usually gets the gold very clean. Oxalic acid is like a polishing step. It's used when the gold is already quite pure, like in this video. You can see by the color that the gold is already high purity after parting with nitric before the first aqua regia treatment.
Some day it would be nice to have you show your safety equipment to show what is required to do these process's refining gold and silver safely. Really enjoy watching your videos!
First item is the fume hood. No way to do these reactions safely without one.
I always wondered about white gold
Amazing.
Another excellent video my friend!
I watch so many Sreetips videos that I should get a lab coat as an honorarium.
LOL
I think a work bench sweeps video would contrast nicely after your 25 oz gold refining video.
That bar is a beauty!!! I am checking your ebay store for future stuff
Amazing video, sir 🙏 I have learned a lot. Thank you so much
Hello, I have Gold Bars & Diamond Stones for sale, Can you help us to look for Gold bars/Diamond buyers in your country and i promise to be giving you 5 % ofany sale please ?. ganddmininggroup01@gmail.com
Peter.
@@gdmininggroup4308 give me ur number pz yargu
@@gdmininggroup4308 hi
Thank you. Very informative.
Thank you for teaching me
The cold beaker was an endothermic reaction
Just unique work done.
great vid sreetips, i very much enjoy watching, personallly i do prefere the smb precipitation it seems cleaner and not so risky ,thanks!
I agree. Oxalic acid works best with gold that is of high purity to begin with. Its a "polishing step."
@@sreetips; Thank you for your prompt reply.i very much appreciate that, i didn't know there was a specific reason for the oxalic acid until now. and makes perfect sense for producing the upmost quality and purity that can be obtained.thanks once again, your vids are very informative and interesting
Question: This might be a noob question...At 23:20 you "called" it and said you have all the base metals dissolved, leaving you with the the final product, gold. At 24:13 you add Sulfuric acid to dissolve led along with the HCL solution to dissolve gold. Should these two steps not be done separately so led could be precipitated out of the solution before adding HCL to dissolve the gold to provide an even purer gold button? I understand this question would make me sound like a complete noob, but for me to understand I need to know. Thank you for all your high-quality videos, it is really informative....never mind, answer is at 31:10
Pure gold is so much more beautiful than Then any other percentage there's nothing like pure gold
Professor oxalic acid is to precipitate gold, as well as the metabisulfite? I thought the oxalico was to purify the royal water to eliminate impurities. Thank you very much I am from Brazil and we speak little English, I do not understand what you speak, I will translate on gogle. Thanks.
im happy to see ur interesting vedio.. i have some of white gold but i dont know how to refine into pure gold.
Refining white gold is the same exact process as yellow gold - they both contain the same amount of pure gold in their alloy.
love the educational value of your vids :)
There should be no trash or impurities in that BRAND of Oxalic acid,, I called the company 3 years ago and asked what the purity of their product was and they said it was 99.8 - 99.9 ,, He went on to say that they take great integrity with their work and product
It looked very pure. But I have seen fibers and dirt in the filters before. But tiny amounts only.
I have seen other refiners on youtube just throw the filter paper(s) in with the final melt, would this effect your final purity if you would have included them?
I've melted many ounces of gold sopping wet with liquid and still in the filter paper. Assays three nines fine every time.
Nitric WILL dissolve gold, slowly and mostly without affect
Heating AU will help speed reaction up but, even hot AU reacts slow.
I recently discovered you can test gold to see if it's real and even determine karat using nothing but a graduated cylinder water a scale and a calculator by weighing it and determining its volume through displacement and using its weight and volume to determine that it is gold and approximately what karat using volume and weight and some relatively simple math because we know the density of pure gold and can determine the density of the different karats through extrapolation or find it online somewhere which I really like because I work within a tight budget so any money I can save on testing supplies if they aren't necessary can go towards something I can't get around like buying glassware or reagents or scrap gold even when I can find a deal on it and possibly one day have enough to try out my idea for a gold brass alloy that is low karat but still looks like higher karat gold and still retains the other properties of gold that make it ideal for jewelry
So fascinating watching your videos... do you teach workshops on gold refining? Also; How do I buy one of your gold bars??
Hello, I've never done any workshops, only the videos. I will list a gold bar from videos I do from time to time.
If you don't have any tester for stones, diamond will disappear in water. And you just see the stone mounts.
Thank you than my diamonds are diamonds yeah baby thank you so much my friend
Hot Nitric Acid boils will indeed dissolve traces of pure gold into solution.
Correct.
How can you tell if the white gold has lead cause I got tons of white gold I find nuggets everywhere and it all passes 18 k gold test but I'm afraid it may have lead well some of it cause some is very heavy and some light for the size
Out of all the acids I’ve seen on your channel, the thought of boiling ammonia terrifies me. Lol… that just seems dangerous. 😩
I hate ammonia. Especially hot ammonia.
@@sreetips that’s a healthy hatred to have though. Lol… ammonia is some terrible stuff.
I knew you used oxalic acid to percipitatate gold once so got back to it... I saw you used a huuge amount of Oxaldihydrate... It's very potent stuff. As you've seen. You really need to use distilled water indeed else Calciumoxalate will pircipitate from the water.
Thank you sir
I would think the Platinum Group Metals in solution would almost certainly at least in part be rhodium but were you ever able to determine what they were exactly if they were present?
I don’t know a thing about rhodium
I very like video nice sir and process awesome and second parts Platinum recovery please sir thank you sir
I've got the platinum, just need to get it done. Thank you.
Fantastic!
Pardon my ignorance, but what, exactly, is the diamond tester testing? Refractive index?
It uses heat, that’s all I know.
I wonder how many times the chemicals can be reused? And what happens to them after use? how do they get properly disposed?
Waste treatment
im curious what this process would do to white gold with a bit of rhodium polluting the PGM or rhodium plating.
The hot nitric shouldn't dissolve rhodium, but the aqua regia should, right?
So if i understand it right, any rhodium would pass through the filter with the gold.
I'm not sure about the rest of the process, but with rhodium being over $10,000 an ounce im very curious.
Yoda, there’s rhodium in my filters and in my stock pot. I’m sure of that. I just haven’t figured out how to get it yet. But I will and then make a new video
How important is the color of the white gold alloy if it's rhodium plated? Does rhodium plating cover any other colors like yellow or Rose or does the true color bleed through the rhodium plating?
I’ve never recovered rhodium. I’m not sure.
i have some oxalic acid on hand. does this substitute the aquaria step? great video and very useful to melt my nuggets. thanks, bob
Oxalic acid is used to precipitate the gold. Aqua regia is used to dissolve the gold.
Sreetips Is there a way I can contact you privately? I have a friend in the demolition business and am wondering if it may be profitable to collect electronics from the buildings. Thanks and awesome videos!
My email is kadriver2011@yahoo.com
As always u r great may Allah bless you sir waiting eagerly for next video thanks a lot for sharing ur knowledge love u sir
Jesus loves you too.
@@fatnindja so does Santa Claus and the tooth fairy.
@@Smokey420Greenleaf LOL ... deal wit it
@@fatnindja huh? deal with what? your comment makes no sense.
@@Smokey420Greenleaf Ummm ...
I think I can simplify your math page on 11:30 a lot for you.
If we want 6k gold then 0.25TW=PG (TW=Total Weight)
Calculate PG and insert it into there and solve for TW.
Now TW-GR=AS
Hey Mr Sreetips, just a question.... what if instead of inquarting, you dissolved everything in Aqua Regia at the start, then precipitated the gold and god knows what else out with the bisulphite, washed off the chlorine, then treated with nitric acid to dissolve the base metals, leaving the gold behind ????
It makes a very dirty solution
thank you greet joop
Nice job Sreetips, not sure I'm comfortable with messing around with the Oxalic Acid as of yet though :)
It's not my favorite method for producing pure gold. Especially when it can be accomplished with SMB.
@@alienrocketscienceshared8454 I’d be cutting that pavement up and putting it in a rock crusher to get that back. Ugh how heartbreaking. Thankfully I’ve never had any major losses like that when refining. 🤞 fingers crossed I never do.
@@alienrocketscienceshared8454 dude, thats why you gotta have a large bin or kids swimming pool or something in n event like that, hell lay out towels everywhere so you can just dissolve the whole towel.... I would have had a pickaxe and or a jackhammer so fast, and would have just thrown the damn asphalt and concrete in some aqua regia!! how much was lost?? I feel that pain even now...
Your the best stay safe thanks.
whens the next time you'll be doing another gold refining video? (subscribed on this video btw) watching the different amounts of acid react with the gold and the repeated process of refining and expelling all the base metals/other unneeded precious metals from the gold is satisfying to watch.
I'll be making some new videos now that the holidays are over.
We only ever sniff at an ammonia bottle once in one’s life. Clears the sinus well though😢😂❤
The orange tint could have been rhodium due to the rhodium wash the put on white gold to keep it looking white
Hi i see new technology for pleat can burn and grip it with your hand it is normal and high quality then pottery
What about Blackhills gold? It's green and rose colored. Have you ever tried to purify it?
Yes, no problem. They “color” gold by adding different portions of base metals to the gold alloy. For example, “rose gold” has the same exact amount as “yellow gold”. But it looks more red because they add more copper and less zinc to the “rose gold.”
So, since both yellow gold and white gold are refined exactly the same is it safe to refine both colors together? Love your videos.
Yes
Sreetips, can you please enable remote playing on this video so I can cast to the TV? Thanks!
Thank you if you did. It is casting now.
Hello, I have Gold Bars & Diamond Stones for sale, Can you help us to look for Gold bars/Diamond buyers in your country and i promise to be giving you 5 % ofany sale please ?. ganddmininggroup01@gmail.com
Peter.
@@gdmininggroup4308 pretty sure sreetips just sells his stuff on ebay.
Hi Sreetips, I was wondering if you could incinerate the tap water off, instead of chancing that some was left in and if that would do the same but better rinsing? I was curious as well in alot of videos a ton of folks use hcl first to rid the base metals out, then they always seem to add nitric after they rinse it from the hcl; the thing that seems to happen more often than not is that some hcl is left and makes some form of chloride salts; if after rinsing the hcl would it in your opinion be better to incinerate it red hot then do your nitric acid? I was just curious thinking that would for sure rid it of all hcl that would be left in it by accident or such. Thank You for your time and would love to see the box of ash waste as well. :) Love your content, you're the best on UA-cam in my opinion for thorough content and doing it right the first time. :)
the nitric is the troublesome acid that needs to be driven off or used up, the hydrochloric is actually really weak in comparison, and it reacts with silver to form silver chloride which is a thick sticky mess that will "gum up the works". also Hcl cant really dissolve any of the base metals by itself from what i understand, which is why he uses pure nitric and avoids Hcl until he is ready to make aqua regia. i only ever see him rinse with hcl sometimes but the nitric is the real workhorse and the extremely powerful reagent of the bunch... in fact sometimes after rinsing a bunch of time with water, he will add some hcl and instantly start dissolving gold just from the very tiny amount of nitric left after all the water rinses...the only reagent that seems stronger than nitric acid is high percentage hydrogen peroxide, that stuff just shreds anything in its way, lmao!
What tips would you have for a beginner that wouldn't have all the lab equipment and chemicals. Anything that could be done with household stuff and old coffee pots and mason jars?
Back when I first started I used a coffee pot because they could be heated. I used 3 liter jars from the thrift store (still use them to decant my stock pot). Pyrex measuring cups work good to heat things in as well. I have clear glass saucers that I use as cover for my beakers. Good luck.
Thanks, Legend! Didn't you forget white gold holds most often Silver? Which might nearly not need that much addition of Silver? I know this video is old but since then the same?
No I didn’t forget
That's strange. Here, "white gold" is an 18k gold and plated with Rhodium. Maybe an "18k" of Au/Pd but definitely electroplated with rhodium. Jewelers will have tiny pouches of rhodium powder, maybe 50mg, dissolves into acid to use for plating. Customers often bring back their white jewelry to be re-plated.
Same here.
@@sreetips refine Rhodium :)
Sorry, I know nothing about rhodium. It’s an enigma to me.
i dont understand how from 98.7g 18k you paid $3700, refine it and you get 31.2g pure gold but now its worth $1,990.88 @ todays $64.00 per gram. don't get me wrong i enjoy your videos they are very educational but thats an expensive lesson
That don’t sound right.
Would it be OK to use cold AR to extract gold from a big 15kg bach of industrial scrap in a teflon barrel?
It would take ages to do it in a beaker. Did 1.000g test and it gave 1.38%.
So cold AR and just let it sit, possible?
I don’t have any experience with that much, type, or cold aqua regia. Sorry
It sounds like a lot of work, a lot of waste that must be treated, for a small amount of gold recovered. These are the reasons that I don’t do much escrap these days.
Wondering why you used oxalic acid in the second refining rather than BSM?
White gold could contain platinum group metals. SMB can drop PGMs if present and could contaminate the gold. Oxalic acid won’t drop PGMs.
The red stone is likely a very valuable argyl red diamond or something, please check it out properly!
I’ll check it carefully. I’ve got a sack full of gem stones. Probably 4 or 5 pounds!
Look up Argyll red or pink diamonds. With a GIA report they fetch big money
***SreeTips*** Do you process gold for others? If I have 665 Grams PC fingers and pins already separated from cards and melted using scrap metals flux and borax would I get most of the gold and majority of impurities out?
This is my hobby, I don't refine other people's material. Melting causes metals to alloy together. They don't separate. Refining is the only way to separate the metals from each other.
Soo good work as alwaya
I have a qust
Afrend disove alloy of gold and ather metals by adding sulferc and nitruc
All metals disolve and gold is purifid
Can the solution have any pgm,s in it or silver or gold
And how can I presitate all that metals
Hope you anser me becuse its about 400lLiters of solution
Hydrochloric acid will precipitate silver chloride. The PGMs, if present, can be cemented out with copper or zinc.
Thank you for the video and insight. I have actually watched several years of them now and various experiments.
There is an aspect that I don't understand though, and that is why the gold is first diluted to appox 25% with the silver, and then the silver is chemically extracted back out?
Is this just to make it easier to get the small pieces when cooling in the water bucket from the pour, or is there another reason? I am really just curious, not planning to do this but it is fascinating since I was a chemical engineer a long time ago. Thanks
Inquartation: adding silver to create a 6k (25%) gold alloy so the nitric can penetrate.
@@sreetips I wonder if the items could just be melted into a bar or thin sheet. Made into an anode of a nitric acid bath to accomplish the same thing? Maybe bubble oxygen or ozone through it as needed.
I am familiar with how to do ultra high purity / semiconductor grade analysis for measuring material purity but not sure how it is done in consumer level purity.
I don’t know, I’ve never tried that.
@@sreetips It is just an idea, but if the voltage is kept relatively low, then the silver would plate onto the cathode, the copper will remain in the acid bath and the high purity gold will remain at the anode.
The nitric probably should be as concentrated and hot as feasible, close to 80 C if that can be done safely. The solubility of the copper nitrates will be nearly 2x at this temperature vs at room temperature, so in theory the excess will precipitate out during cooling and you can keep reusing it. Maybe.
It might disintegrate during the process so using your dacron bag around the anode might be useful to capture it.
The bubbles coming off of the cathode will be quite strong, I believe that if dissolved in distilled water they would produce fresh nitric acid.
Of course this is just an idea, and a lot of things don't work in the real world.
The biggest question I'd ask about white gold isn't how, but why...
Some people can’t stand yellow metal but still want gold. For them there is white gold.
I have an idea for you sreetips. Make an inquartion like this but instead use elctrolysis to remove the silver. Then use acid on the remains to refine the gold.
Sounds interesting. That's not a technique that I'm familiar with. Parting out the silver with electrolysis to get the gold seems like kind of a round about way to go. But it would make an interesting video.
After thinking about it, there would be no way to get all of the silver out with the electrolytic step. More nitric would be required and then the gold would crumble and turn into powder. That would take much longer than just straight dilute nitric treatments.
Hello Sreetips,this is Jesse Few. Have you ever refined keyboard mylars? If yes could I get the link & if no would you mind maybe try to make a video to refine some mylars.
Jesse Few sorry, I’ve never done it
Rhodium is the platting that is on gold. It's more common then making an alloy. I bet you have a ton of it.
We see it from time to time at the repair shop.
Moissanite tests as a Diamond too.
It could be a lab grown diamond
Great video! not sure if this was meant, but you've put your eBay listing under ( Coins & Paper Money>Bullion>Silver>Bars & Rounds )
Surely it should be under gold? Forgive me if wrong, my knowledge isn't the greatest. I just enjoy watching the videos and the detailed process.
Thanks
I changed it, thank you.
No problem, glad I could help :)
Why didn't you just burn the filter with all the gold in it this time? Usually you just melt the gold with the filter?
Burning the filter during the melt hurts nothing. But there are some folks, not familiar with these techniques, who may consider burning paper with the gold as a source of possible contamination, even though it's not. Since I was going for high purity and will be selling this bar, I decided to not include the filter paper in the melt just for the effect. It's also the reason I used a fresh melt dish.
White gold with palladium should be even more expensive than 24k gold
Absolutely
I still don't quite get the point of white gold? What is the benefit over rhodium plated sterling? lol
Rhodium plating wears off and has to be dipped once in a while. Sterling silver is much softer metal and not usually suitable for setting diamonds. Some folks can't stand the look of yellow gold. They prefer the look of the white metal. White gold, made with palladium, is very beautiful. But most cheap white gold contains nickel. Some folks suffer allergic reactions to nickel. I like the look of pure yellow gold.