BigstackD is fun once or twice but his “treasure” is imaginary in terms of real value compared to the money he sunk into it with gas, tools, grinding disks etc. Aluminum bronze etc. are basically base metals. Close to someone stockpiling dirt or old newspapers.
Sreetips, You seem to have a wonderful marriage! You’ve also gotten an amazing skill! Ima just STUNNED and FASCINATED!! I simply ❤ how you don’t utilize any music. LOVE THE VIDEOS!!
I came across your channel by chance about a year ago, absolutely no interest in gold/silver refining, but iv watch every episode you’ve produced since. Thankyou.
I find it fascinating how entertaining this is when you would think it would be so boring. I firmly believe most of that comes from how complete Sreetips is not only in his demonstrations but, most importantly, in his explanations. You could take the contents of his library here on TH-cam and start this up yourself. Glassware to fume hoods is right here.
Great part 1&2! The cloudiness comes from AgCl which is soluble in concentrated HCl when pH is very low and the higher the better the solubility of AgCl... when rinsing the filter with distilled water the pH rises and the AgCl comes out of solution. Those microscopic cristalsl of AgCl serve as cristallisation core for the gold when dropping it. You have to either concentrate the gold solution by evaporating most of the remaining HCl and then dilute with water and all the AgCl comes out, then filter and drop the Gold OR you boil the dropped Gold in concentrated HCl several times. But this is not so efficient because inside the gold powder units there is an AgCl core which is liberated when you redissolve the gold... Exolained this in extenso in some of my vids.
I watched both from the beginning and when you calculated the 2.5% in, I kept hoping for more. I saw there was a lot of silver in so I got some of my hope up but the weigh-in at the end made this worthwhile, 2700 is better than 2000 dollars, especially with all that work.
Thanks for another great, honest video. I have a couple of comments but first my qualifications. I taught chemistry for more than 30 years. The cloudy precipitate is very likely silver chloride IMO. You skipped the inquartation/nitric dissolution step that would have removed the silver for later recovery. The passivated metal you discovered after your first aqua regia dissolution adds further evidence to the silver chloride hypothesis. Easy to be wise after the event of course. Couldn't be sure but the little "tail" at the end of your ingot evidences that some contamination remains in your gold. I see lots of comments regarding recovery of value from your cemented copper. Probably wouldn't be cost effective unless there are some precious metals retained in this copper but an electrolytic refining step for copper might be worth considering. Thanks again for your videos. I really enjoy them.
Thank you for taking so much of your time to make these videos. There’s nothing else like this (what you do) anywhere else. Your work is appreciated very much.
I’ve been watching Sreetips for the past year and even if I don’t refine any gold, I find it highly interesting. Very eloquent man, humble in his mistakes and very educational. Continue the great job Sreetips!!
The best videos of refining out there. I looked at some of your videos a year back I think but even more and nobody can match you, your efficiency and professionality ;) Keep doing the great job you are doing ;)
This is truly amazing. The skill set you have with the trial and error is really enjoyable to see. Thank you for making these videos for all of us. God Bless.
Love the come-back part! Old prof used to make us put a section at the end of our projects (there is a name for it that escapes me) that was specific on what went wrong. His opinion, and I totally agree, is that errors are where half of learning takes place. Books are ouststanding base sources of what others have found, but when you screw something up and can figure out how and why you pump up you own knowledge base and gain confidence to step further out. Or something like that.
I love how deliberate you are in your movements while dealing with these highly corrosive chemicals. I’m a clumsy bull in a China shop and would not attempt this even if I had the knowledge which I don’t, but it’s great to see someone with your skill, make scrap metal into something highly valuable.
You ever figure out what the impurity was that was following the gold over? Awesome attention to detail and craft on your part by the way. Just beautiful to watch you work and have your thorough explanations as well as you not being afraid to show a mistake and use it as a teaching/learning point.
This was a very educating video, thank you sir! Could you make another video about your waste treatment process in the future? Especially about the time and resources it takes to deal with the waste solutions after you reclaimed the traces of precious metals in your stock pot? This is a very important step of your work wich some people might not know about or appreciate enough due to how important it is to the whole refining process.
I do enjoy your videos. My father would let me do some precious metal refining in the backyard. I mostly did silver scrap but did study and try some gold computer scrap. My setup was a few flasks and plastic buckets. He would come out and ask me what I was doing and then go back inside after I explained. You might try Refining Gold with Dibutyl Carbitol to separate the gold solution from persistent contamination. Oxalic acid as a final precipitation agent is supposed to yield high purity gold.
Awesome video , so if you melted down the initial pile of foils instead of dissolving them into solution for further refinement would you essentially have 12-14k gold ? Perhaps taking one last look to clear out potential missed steel bits and stones ? So every step beyond that is refining the gold further through continued cycles of dissolving precipitation and filtration ? Thanks
Hey Sreetips, Thank you for another awesome and insightful video. I have quite a bit of GF scrap saved up and have been scouring every resource to find a Nitric acid alternative method of processing. Any thoughts on how this could be achived with the same level of efficiency as Nitric Acid? Many thanks.
Awesome video and a beautiful bar at the end. I'm curious as to why you took a different route this time instead of encourting your gold with silver like you did for the $47,000 bar.
The filters hold up well with cold aqua regia solution. A hot solution is not the same. Even a hot silver nitrate solution can cause a filter paper to fail. That’s why I have a vacuum switch on my system to shut off the vacuum pump at about 7 inches. Sulfuric acid, forget about it. Hot or cold, the paper filters won’t hold up. That’s why I use microfiber glass filters to filter sulfuric acid solutions.
It looks like you were battling silver or lead, or both. Your filtered solution would turn cloudy from the water you had used to wet the filter papers prior to filtering and the water used to rise the papers afterwards. Not that it needs to be identified but if whether or not the white contaminant turns purple in sunlight, this could prove useful under certain circumstances. Next time, instead of repeatedly filtering, start over again by getting all the solution back into a single vessel, add hydrochloric to drop any silver, add sulfuric to drop any lead, let sit for a half hour or so, preferably chilled, then do the filtering. No need to be shy with the hydrochloric and sulfuric in this situation, won't hurt a thing, so be generous. It looked as if you were using distilled during the filtering process, if you had been using tap it would have dropped even more of the contaminant out of solution.
It appears that some of your material may have been Carat scrap instead of gold filled. Remember that crown left over in the un-dissolved leftovers? Please show us a video if what you recover from that leftover material. Thanks!
Where do you get acid from? That’s a huge cost factor for me when I refine. Also, where did you get those glass acid containers with the name of the acid in the glass? Those are nice 👍🏻.
So awesome to watch your videos again I really look forward to them thank you. How long do you think untill we find out what's all hiding in your stock pots and filters?
I just want to comment thanks for ur honesty and not misleading people! I say that to say this there are a lot of videos out there saying that you can basically use urea to denounce nitric acid all it does is lower the pH wasting money maybe you can help me why these people are misleading people?
Another question if you dont mind Sir....If you dont have an oven can you just incinerate the material you captured in the filter with a torch? Or would there be a reason you would absolutely have to do it in an oven other than convenience?
Wow that looks nice and clean I love it I have some gold about 1oz are more And it has some Aluminum in it that fell in the kiln while melting the gold down Is there a way of getting it out Thanks
Quick question you may have answered this and if so I apologize.....is there a different process for white gold filled ? Or just add it and expect more silver
Seems like every time we get a Gold Filled Scrap video the final yield is always more than expected. Also curious about what those pieces of metal that didn't go into solution were.
I find it fascinating that you find it fascinating by adding a chemical to gold bearing solution to precipitate the gold out of the solution. I find it fascinating that YOU can take a metal that never oxidizes, make it oxidize, and turn it into a liquid. Truly amazing!
Most refiners, dealers, and jewelers will be perfectly content calling that a "pure, 24k gold bar" Not Sreetips tho! The man has such high standards for his gold that he'll feel forced to refine it, at least once more, before stamping his name on it. 👍👍👍🤩
I love your videos and am at the very begginer of jewelry manufacturing and refining. I found in my search that if youa don't want to pay outrageous for your gold inventory it's best to try and find the the carated gold and gold filled scrap. I get where to find gold filled items but where do you find the gold carat for refining and resell. Any info would be greatly appreciated. I have 1500 grams of gold filled so far and all the real carat gold I found even scrap is way over charged on ebay and the other selling sites. Any help would be very useful.
Yard sales, thrift store, resale shops, consignment stores, flea markets, estate sales. Got to get up early and be there first or the gold will be gone. People on eBay know what they have and want top dollar - eBay is not a good place to buy gold. You can’t sit on your computer, in your pajamas, and expect to buy gold online at a discount. However, you can find it at deep discounts at the aforementioned places if you know when, where and what to look for. Most people believe, incorrectly, that paper dollars are more valuable than gold. We can use this misconception to buy gold at a discount. But it’s not going to fall in your lap. You must hunt. Good luck.
At this moment, even if that bar is only 23k, it's worth US $2,569.90 at scrap value. At 24k it would be worth $2,681.64. Good job, Sr. I really like how you keep your "uh ohs!" in there to show what to do. I always roll my eyes when I see people make mistakes and then fail to tell you what they did to correct it or even explain what the mistake was in the first place.
I always enjoy your videos sreetips. Your glassware is always extremely clean. Can you do a video sharing what cleaners you use, special brushes or other cleaning tricks. I find keeping my filter flasks clean can be a challenge. Thanks!
I use sedimentation in a measuring cylinder to remove fine sludge from AR. It takes longer, but the AR is then absolutely clean. Maybe it's a solution for someone who doesn't have vacuum filtration.
So when the copper cements out on the iron, is it replacing the iron or does the iron stay the same, still an angle iron and relatively the same amount of iron? And if it just plates out on the iron, after the entire surface of the angle iron is covered with copper, does the cementation stop?
Please see “reactivity series of metals” the copper “cements” out on the iron as the iron goes into solution. The two metals trade places. Once the reaction is done, I’ll have metallic copper in an acidic iron solution.
Another great video @sreetips and a nice looking bar at the end. 👍👍 Any afterthoughts on what might've been following the gold through the refining process ?
Hello streetips this maybe a stupid question but i have been wondering after seeing your videos my question is (When the gold is dissolve into the solutions dose the gold make the liquid weight higher? I.E if 70ml weight 50g dose it weight more when the gold has dissolve.) Sorry if you have covered this question. Will
Hey sreetips can you remind me what those dark fumes are? Also, I love your videos. Learning alot and am collecting some scrap to refine my own gold and silver 👍🏻 love how you make safety a priority, much respect
Regarding the copper being thrown away, I would be more than happy to buy it off of you and cover shipping as well. I do some hobby level casting and would love to have more copper for experimenting with alloys and such. Copper prices are so high now, it pains me to hear no one is getting use out of it. Let me know if thats something you'd be interested in, or if its just not worth your time. Either way is understandable. Also, why would hot spots cause the steam to pop so violently? Is that just because of the acids? As opposed to a water boil; I don't recall ever seeing water pop like that. Great content as always! Very cool.
The copper is highly contaminated with other metals. I don’t have enough time to process the precious metals. The boiling pops can be eliminated with boiling granules.
Here's a question for you because I know nothing about chemistry or gold refining, When you smelt your gold powder, why Is the gold Ingot / bar heavier than the powder 🤔🤔👍👍
Smelt, a term used to describe recovering metal from ore - I’ve never done any smelting. All the gold that I refine is already out of the ground. If you notice, a melt dish full of gold powder will decrease in volume about 5 or 6 times as it MELTS into a pool of molten metal. The powder will weigh just as much as the melted gold. But the powder is more volume - ous, than the melted gold button.
Guessing silver chloride followed all the way through. It is a real nightmare to get out. Almost impossible with regular filter paper. Clear condition was probably because excess nitric redissolve the silver in first filtration but there wasn't enough free nitric in the other redissolves... just my guess from an experience or three.
What is the cost of your refining effort, between scrap jewelry, chemicals, and disposal of waste products? Could the cloudiness be from the impurities in the stump out and Iron fertilizer?
And now , because I've watched many of your videos and have been a subscriber , you've given me the courage to think about trying this on my own . Thanks much from s.w. Michigan .
It's time to get you an XRF. I watch enough of your videos to throw in 10-20 bucks for one just to satisfy my (and your) curiosity. Set up a Patreon for an XRF.
Would you call the bar .998 fine gold? It sure looked pure. It had a nice look at the pour!! I think it would be cool to see one of the bars that you call really pure or .999 fine assayed. Just to see what it is. I think most would not be surprised to see that most of your bars are .9999 fine. Maybe you like to be safe with your estimates and keep it a grade lower so as not to over rate it, to be safe! Great video Sreetips!! Have a Great Day My Friend!!!
are there any other chemicals that work as well as sodium metabisulfite to precipitate elemental gold out of solution? What would ever happen if sodium metabisulfite were no longer available for some reason?
I can use ferrous sulfate (plant food). It’s also called “iron sulfate” and “copperas”. It will precipitate all the gold, and nothing but the gold. Oxalic acid works, SO2 gas
Question I’ve been refining gold filled one batch after I filtered the base metals out I got a bright clean blue solution the next batch of gold filled I used watch band caps and after dissolving base metals I got a murky greenish bluish solution after filtering foils any idea why one was bright blue and the other was murky green? Thanks!
When doing GF it’s easy, especially for new refiner, to add something that causes problems. Maybe some soft solder, or other junk metals that form compounds with the nitric. As long as it filters ok, AND YOU INCINERATE the foils, then it should go just fine
Takes about two days - 18 hours or so. Cost to refine it is less than $100 all in. We get the scrap at yard sales for very little cost. You make your profit when you buy
@J Fz In my cleanups the centrifuge will make clear solutions when filtering fails. Usually the clear liquid contains the gold. If the pellet in the centrifuge tube is the desired product, it is usually ready to wash after removing the supernate.
@@unh0lyav3ng3r8 I have one centrifuge that can hold 4 tubes of 50ml each. You can spin, clean, refill and continue all day long. The need for filter paper is all but eliminated.
My favorite part was when he realized it was more gold than he was expecting. It's always fun to realize you have more gold than you're expecting.
"I just throw the copper away"
Somewhere, bigstackD just felt a wave of sadness.
BigstackD is fun once or twice but his “treasure” is imaginary in terms of real value compared to the money he sunk into it with gas, tools, grinding disks etc.
Aluminum bronze etc. are basically base metals. Close to someone stockpiling dirt or old newspapers.
He doesnt do it to make money. He isnt into recovering precious metals, just recycling what would otherwise end up in a landfill.
@@cjwinther1658 His "treasure" is TH-cam views. ;)
@@cjwinther1658 he still would surpass costs, he gets bunch of money from youtube doing it and its a hobby. Why not
bigstackD! He used to pretend to melt his wifes fancy faucets, door knobs, screens or whatever. lol
Sreetips,
You seem to have a wonderful marriage! You’ve also gotten an amazing skill! Ima just STUNNED and FASCINATED!! I simply ❤ how you don’t utilize any music.
LOVE THE VIDEOS!!
I came across your channel by chance about a year ago, absolutely no interest in gold/silver refining, but iv watch every episode you’ve produced since. Thankyou.
I find it fascinating how entertaining this is when you would think it would be so boring. I firmly believe most of that comes from how complete Sreetips is not only in his demonstrations but, most importantly, in his explanations.
You could take the contents of his library here on TH-cam and start this up yourself. Glassware to fume hoods is right here.
Great part 1&2!
The cloudiness comes from AgCl which is soluble in concentrated HCl when pH is very low and the higher the better the solubility of AgCl... when rinsing the filter with distilled water the pH rises and the AgCl comes out of solution. Those microscopic cristalsl of AgCl serve as cristallisation core for the gold when dropping it.
You have to either concentrate the gold solution by evaporating most of the remaining HCl and then dilute with water and all the AgCl comes out, then filter and drop the Gold OR you boil the dropped Gold in concentrated HCl several times. But this is not so efficient because inside the gold powder units there is an AgCl core which is liberated when you redissolve the gold...
Exolained this in extenso in some of my vids.
You’ve explained this before. I can see it now. Thank you
Well something to watch while fighting insomnia.
Lookin like I'll be eyes closed at 4:30am at this rate.
I thought I was the only one lol
@@CamelGarage you're not :) Definitely not
Lol just binged his videos until 1-2 am eastern time then he uploads a video a couple hours later😂
I watch out of interest in the subject. For insomnia I would choose someone with a more soothing voice. :-)
This was really fun to watch. I wouldn’t do this myself but it’s neat to see someone else do it. I love how it turned out. Very shiny chrome like.
I watched both from the beginning and when you calculated the 2.5% in, I kept hoping for more. I saw there was a lot of silver in so I got some of my hope up but the weigh-in at the end made this worthwhile, 2700 is better than 2000 dollars, especially with all that work.
Thanks for another great, honest video. I have a couple of comments but first my qualifications. I taught chemistry for more than 30 years.
The cloudy precipitate is very likely silver chloride IMO. You skipped the inquartation/nitric dissolution step that would have removed the silver for later recovery. The passivated metal you discovered after your first aqua regia dissolution adds further evidence to the silver chloride hypothesis. Easy to be wise after the event of course. Couldn't be sure but the little "tail" at the end of your ingot evidences that some contamination remains in your gold.
I see lots of comments regarding recovery of value from your cemented copper. Probably wouldn't be cost effective unless there are some precious metals retained in this copper but an electrolytic refining step for copper might be worth considering.
Thanks again for your videos. I really enjoy them.
Just what I was about to put kind of
Excellent, thank you
Thank you for taking so much of your time to make these videos. There’s nothing else like this (what you do) anywhere else. Your work is appreciated very much.
Thank you!
I’ve been watching Sreetips for the past year and even if I don’t refine any gold, I find it highly interesting. Very eloquent man, humble in his mistakes and very educational.
Continue the great job Sreetips!!
Great stuff Chief. Way awesome. When I retire in 10 years I'll be doing a lot of this type of stuff. Currently an OS1. Thanks for the great content
The Navy was good to me, and I was good to the Navy.
The best videos of refining out there.
I looked at some of your videos a year back I think but even more and nobody can match you, your efficiency and professionality ;)
Keep doing the great job you are doing ;)
Thank you
This is truly amazing. The skill set you have with the trial and error is really enjoyable to see. Thank you for making these videos for all of us. God Bless.
its quite wonderful when you add your nitric to your HCl and gold and see it spring to life with that fizzing and gorgeous yellow colour
I love the yellow clear solution, but I also love watching the SMB precipitate the gold out. What a beautiful process.
Love the come-back part! Old prof used to make us put a section at the end of our projects (there is a name for it that escapes me) that was specific on what went wrong. His opinion, and I totally agree, is that errors are where half of learning takes place. Books are ouststanding base sources of what others have found, but when you screw something up and can figure out how and why you pump up you own knowledge base and gain confidence to step further out. Or something like that.
I love how deliberate you are in your movements while dealing with these highly corrosive chemicals. I’m a clumsy bull in a China shop and would not attempt this even if I had the knowledge which I don’t, but it’s great to see someone with your skill, make scrap metal into something highly valuable.
I noticed this as well!
Thanks for the great vid Chief, absolutely riveting.
Still enjoying the chemistry absolutely phenomenal yield of your gold
Damn that tiny little bar is just shy of $3,000 USD , crazy
The chemicals and process probably ate a decent chunk of that profit.
I'm sure that he could have skipped 30 stages and precipitations and saved himself $2990 and around 600 gallons of acid into the environment
I think he probably just likes to pour stuff,,, he was at the gold mud at least six times beforehand ffs,,,,,,,,,,,,,
It's also very clean and fine.
I love chemistry videos and am seriously addicted to your videos. Thanks for keeping me interested over the years.
You ever figure out what the impurity was that was following the gold over? Awesome attention to detail and craft on your part by the way. Just beautiful to watch you work and have your thorough explanations as well as you not being afraid to show a mistake and use it as a teaching/learning point.
Sometimes it remains a mystery.
Silver or lead maybe?.
This was a very educating video, thank you sir!
Could you make another video about your waste treatment process in the future? Especially about the time and resources it takes to deal with the waste solutions after you reclaimed the traces of precious metals in your stock pot? This is a very important step of your work wich some people might not know about or appreciate enough due to how important it is to the whole refining process.
This put me to sleep, woke up a hour later and he’s now washing mud in another beaker.
Was really looking forward to seeing this second part!
Always interesting to see you!! Yoda master of gold refining 😋
I do enjoy your videos. My father would let me do some precious metal refining in the backyard. I mostly did silver scrap but did study and try some gold computer scrap. My setup was a few flasks and plastic buckets. He would come out and ask me what I was doing and then go back inside after I explained. You might try Refining Gold with Dibutyl Carbitol to separate the gold solution from persistent contamination. Oxalic acid as a final precipitation agent is supposed to yield high purity gold.
Great job sir.from Ur experience what is following this gold silver or pt group.
Just wandering , must be stamped on jewellery that is gold field or any gold colour jewellery is ok ? Thanks in advance Paul
Not all gold filled material is marked
Awesome video , so if you melted down the initial pile of foils instead of dissolving them into solution for further refinement would you essentially have 12-14k gold ? Perhaps taking one last look to clear out potential missed steel bits and stones ? So every step beyond that is refining the gold further through continued cycles of dissolving precipitation and filtration ? Thanks
Correct
Hey Sreetips, Thank you for another awesome and insightful video. I have quite a bit of GF scrap saved up and have been scouring every resource to find a Nitric acid alternative method of processing. Any thoughts on how this could be achived with the same level of efficiency as Nitric Acid? Many thanks.
Maybe a sulfuric acid stripping cell - but I’ve never tried it with GF scrap
@@sreetips Many thanks.
These videos are as good as GOLD! 🤩👍✨
We never get tired of watching your stuff. Keep 'em coming. Best health and luck to you, Sreetips.
Awesome video and a beautiful bar at the end. I'm curious as to why you took a different route this time instead of encourting your gold with silver like you did for the $47,000 bar.
If I remember correctly, that was refined from karat gold, not gold filled scrap.
How is it that at about 5:00 you can filter the Aqua Regia solution through paper? I would have assumed it would eat the filter paper.
The filters hold up well with cold aqua regia solution. A hot solution is not the same. Even a hot silver nitrate solution can cause a filter paper to fail. That’s why I have a vacuum switch on my system to shut off the vacuum pump at about 7 inches. Sulfuric acid, forget about it. Hot or cold, the paper filters won’t hold up. That’s why I use microfiber glass filters to filter sulfuric acid solutions.
So this is how they make Mt Dew.
at 11:45, where does the green color come from? it is oxidized copper in solution?
Awesome work. Beautiful bar. Thanks for the video.
It looks like you were battling silver or lead, or both. Your filtered solution would turn cloudy from the water you had used to wet the filter papers prior to filtering and the water used to rise the papers afterwards. Not that it needs to be identified but if whether or not the white contaminant turns purple in sunlight, this could prove useful under certain circumstances.
Next time, instead of repeatedly filtering, start over again by getting all the solution back into a single vessel, add hydrochloric to drop any silver, add sulfuric to drop any lead, let sit for a half hour or so, preferably chilled, then do the filtering. No need to be shy with the hydrochloric and sulfuric in this situation, won't hurt a thing, so be generous.
It looked as if you were using distilled during the filtering process, if you had been using tap it would have dropped even more of the contaminant out of solution.
.999 and he is going to throw the towel in for high purity, thats a humble man right there.
It appears that some of your material may have been Carat scrap instead of gold filled. Remember that crown left over in the un-dissolved leftovers?
Please show us a video if what you recover from that leftover material. Thanks!
Have you ever done a tour of your shop? I'd love to see how much glass wear you have.
Shop tour: th-cam.com/video/WfhuY0eTUMo/w-d-xo.html
great videos (pt 1 and 2). Thank you for sharing. How do you dispose of all of the acid solutions.
Waste treatment
Thats awesome. Good job. Beautiful bar.
Again...greatness thank you!!
Sir, my dirty agua regia solution, copper, brass and gold pure green color.. Not settile in sodium metabisulfite.. How collect my gold
Where do you get acid from? That’s a huge cost factor for me when I refine. Also, where did you get those glass acid containers with the name of the acid in the glass? Those are nice 👍🏻.
GFS Chemicals. Bought the glass on eBay. The Wheaton drip tip containers from a lab glass supply place - can’t remember the name
@@sreetips Yea youve got some sweet glassware Mr. S
So awesome to watch your videos again I really look forward to them thank you. How long do you think untill we find out what's all hiding in your stock pots and filters?
Excellent video as always Sreetips. Awesome yield as well despite all the repurifications. 👍
I just want to comment thanks for ur honesty and not misleading people! I say that to say this there are a lot of videos out there saying that you can basically use urea to denounce nitric acid all it does is lower the pH wasting money maybe you can help me why these people are misleading people?
They’ve been mislead and probably don’t know any better. Just give them a pass, practice the truth, and be thankful that you understand.
Excellent video, sreetips! Great as always in your work. I'm looking forward to see the Platinum Refining video part 3.
Got it coming up soon
Another question if you dont mind Sir....If you dont have an oven can you just incinerate the material you captured in the filter with a torch? Or would there be a reason you would absolutely have to do it in an oven other than convenience?
I’ve used a torch, but the flame will blow material out of the dish.
Wow that looks nice and clean I love it
I have some gold about 1oz are more And it has some Aluminum in it
that fell in the kiln while melting the gold down
Is there a way of getting it out
Thanks
I never got the chance to take chemistry in school. but I think I would like it. ^_^Also mad respect for keeping in the whoopsie as an example!
Thank you Mr.sreetips. I have learned so much from you over the years.
Quick question you may have answered this and if so I apologize.....is there a different process for white gold filled ? Or just add it and expect more silver
It’s the same process for yellow gold and white gold.
@@sreetips many thanks
A lot of people I watch mix the aqua regia before adding it to gold. I think you add the nitric acid separately. Have you tried doing both?
Yes, I have a video on it. Premixing guarantees problems during precipitation and wastes chemicals.
How much profit do you make after deducting the money paid for scrap gold jewelries? Do you mind telling us. Thank you for your videos.
It’s hard to tell because I don’t track expenses for each batch
@@sreetips Are you making money or losing money?
@@danielyang8183 so far we are keeping the lights on, a roof on our heads, and some food on the table.
Does the Iron Sulfate simply create So2 Gas to precipitate the gold, just like SMB?
No, there are no fumes with iron sulfate precipitation. I don’t know the chemistry behind it
@@sreetips Thanks shipmate...
Seems like every time we get a Gold Filled Scrap video the final yield is always more than expected. Also curious about what those pieces of metal that didn't go into solution were.
Most gold filled material is 1/20 12k or 2.5% by weight. But watch cases and older bangle bracelets can be up over 4% by weight
@@sreetips Indeed.
I enjoy every video. Thank you
I find it fascinating that you find it fascinating by adding a chemical to gold bearing solution to precipitate the gold out of the solution. I find it fascinating that YOU can take a metal that never oxidizes, make it oxidize, and turn it into a liquid. Truly amazing!
Great video as all ways. hope you had a good new year and here's to more videos. thanks again
Bravo! Happy new year
Most refiners, dealers, and jewelers will be perfectly content calling that a "pure, 24k gold bar" Not Sreetips tho! The man has such high standards for his gold that he'll feel forced to refine it, at least once more, before stamping his name on it. 👍👍👍🤩
Want to avoid selling sub-standard gold, like the plaque.
I love your videos and am at the very begginer of jewelry manufacturing and refining. I found in my search that if youa don't want to pay outrageous for your gold inventory it's best to try and find the the carated gold and gold filled scrap. I get where to find gold filled items but where do you find the gold carat for refining and resell. Any info would be greatly appreciated. I have 1500 grams of gold filled so far and all the real carat gold I found even scrap is way over charged on ebay and the other selling sites. Any help would be very useful.
Yard sales, thrift store, resale shops, consignment stores, flea markets, estate sales. Got to get up early and be there first or the gold will be gone. People on eBay know what they have and want top dollar - eBay is not a good place to buy gold. You can’t sit on your computer, in your pajamas, and expect to buy gold online at a discount. However, you can find it at deep discounts at the aforementioned places if you know when, where and what to look for. Most people believe, incorrectly, that paper dollars are more valuable than gold. We can use this misconception to buy gold at a discount. But it’s not going to fall in your lap. You must hunt. Good luck.
In part 1 you left me hanging. My fault I wasn’t paying attention.🐎🌻✌️
At this moment, even if that bar is only 23k, it's worth US $2,569.90 at scrap value. At 24k it would be worth $2,681.64.
Good job, Sr. I really like how you keep your "uh ohs!" in there to show what to do. I always roll my eyes when I see people make mistakes and then fail to tell you what they did to correct it or even explain what the mistake was in the first place.
I always enjoy your videos sreetips. Your glassware is always extremely clean. Can you do a video sharing what cleaners you use, special brushes or other cleaning tricks. I find keeping my filter flasks clean can be a challenge. Thanks!
Like the chemistry behind it
I use sedimentation in a measuring cylinder to remove fine sludge from AR. It takes longer, but the AR is then absolutely clean. Maybe it's a solution for someone who doesn't have vacuum filtration.
So when the copper cements out on the iron, is it replacing the iron or does the iron stay the same, still an angle iron and relatively the same amount of iron? And if it just plates out on the iron, after the entire surface of the angle iron is covered with copper, does the cementation stop?
Please see “reactivity series of metals” the copper “cements” out on the iron as the iron goes into solution. The two metals trade places. Once the reaction is done, I’ll have metallic copper in an acidic iron solution.
الاجانب شرفاء من ناحية العمل فهم لا يبخلون بتعليم صنعتهم لكن العرب لا يعطون خبرتهم لاحد 😢اتمنا ان افهم ما تقول
Another great video @sreetips and a nice looking bar at the end. 👍👍 Any afterthoughts on what might've been following the gold through the refining process ?
Hello streetips this maybe a stupid question but i have been wondering after seeing your videos my question is (When the gold is dissolve into the solutions dose the gold make the liquid weight higher? I.E if 70ml weight 50g dose it weight more when the gold has dissolve.)
Sorry if you have covered this question.
Will
It should weigh more with the gold in it
I bet this video and the pt 1 gets you to that 30,000,000 views mark!!! Congrats!!
How many hours did it take to do this, and how much were spent on the chemicals? Thanks
I can complete one kilo of GF scrap to high purity gold in about two days. Chemical? Less than $100 all in
Freaking awesome videos brother love watching u recover gold and silver!!
I'm curious as to why you throw the copper away... why not recycle it and use it again when cementing out new refined batches of silver?
Because it’s contaminated with other metals
Just subscribed, fascinating. How much did the handful of gold filled jewelry initially cost?
I don’t keep track of each batch. That’s about 6 months worth of accumulation. My wife finds it for me at local sales
Hey sreetips can you remind me what those dark fumes are? Also, I love your videos. Learning alot and am collecting some scrap to refine my own gold and silver 👍🏻 love how you make safety a priority, much respect
Nitric boils yield red/brown nitrogen dioxide.
@@sreetips Thank you very much
Regarding the copper being thrown away, I would be more than happy to buy it off of you and cover shipping as well. I do some hobby level casting and would love to have more copper for experimenting with alloys and such. Copper prices are so high now, it pains me to hear no one is getting use out of it. Let me know if thats something you'd be interested in, or if its just not worth your time. Either way is understandable.
Also, why would hot spots cause the steam to pop so violently? Is that just because of the acids? As opposed to a water boil; I don't recall ever seeing water pop like that.
Great content as always! Very cool.
The copper is highly contaminated with other metals. I don’t have enough time to process the precious metals. The boiling pops can be eliminated with boiling granules.
Here's a question for you because I know nothing about chemistry or gold refining, When you smelt your gold powder, why Is the gold Ingot / bar heavier than the powder 🤔🤔👍👍
Smelt, a term used to describe recovering metal from ore - I’ve never done any smelting. All the gold that I refine is already out of the ground. If you notice, a melt dish full of gold powder will decrease in volume about 5 or 6 times as it MELTS into a pool of molten metal. The powder will weigh just as much as the melted gold. But the powder is more volume - ous, than the melted gold button.
Guessing silver chloride followed all the way through. It is a real nightmare to get out. Almost impossible with regular filter paper. Clear condition was probably because excess nitric redissolve the silver in first filtration but there wasn't enough free nitric in the other redissolves... just my guess from an experience or three.
What is the cost of your refining effort, between scrap jewelry, chemicals, and disposal of waste products? Could the cloudiness be from the impurities in the stump out and Iron fertilizer?
Where do you acquire the gold plated jewelry and trinkets? What kinda price do you pay for this “scrap”?
My wife gets it for me
Gotta know what kind of watch are you wearing in the video ?
And we never get tired of watching you precipitate the gold powder my friend .
Me neither
And now , because I've watched many of your videos and have been a subscriber , you've given me the courage to think about trying this on my own . Thanks much from s.w. Michigan .
It's time to get you an XRF. I watch enough of your videos to throw in 10-20 bucks for one just to satisfy my (and your) curiosity. Set up a Patreon for an XRF.
Would you call the bar .998 fine gold?
It sure looked pure. It had a nice look at the pour!!
I think it would be cool to see one of the bars that you call really pure or .999 fine assayed. Just to see what it is. I think most would not be surprised to see that most of your bars are .9999 fine.
Maybe you like to be safe with your estimates and keep it a grade lower so as not to over rate it, to be safe!
Great video Sreetips!!
Have a Great Day My Friend!!!
It’s probably 995 or better.
Wow! Beautiful gold!!!
would doing the Oxalic acid precipitate cleaned the gold?
Possibly
That looks fantastic to me you were very impressive
How much does the supplies cost to get an ounce of gold or silver on average?
What's in the red vapor coming off? Is there any chance those fumes contain metals? Or is that impossible?
It’s possible, but traces only.
are there any other chemicals that work as well as sodium metabisulfite to precipitate elemental gold out of solution? What would ever happen if sodium metabisulfite were no longer available for some reason?
I can use ferrous sulfate (plant food). It’s also called “iron sulfate” and “copperas”. It will precipitate all the gold, and nothing but the gold. Oxalic acid works, SO2 gas
@@sreetips Thank you! I'm learning so much from you. Thank you for replying to comments on these old videos. You are amazing.
Question I’ve been refining gold filled one batch after I filtered the base metals out I got a bright clean blue solution the next batch of gold filled I used watch band caps and after dissolving base metals I got a murky greenish bluish solution after filtering foils any idea why one was bright blue and the other was murky green? Thanks!
When doing GF it’s easy, especially for new refiner, to add something that causes problems. Maybe some soft solder, or other junk metals that form compounds with the nitric. As long as it filters ok, AND YOU INCINERATE the foils, then it should go just fine
Oh and one more thing, what % of nitric acid do u use for in this process? 70?
The label says 68% to 70% ACS but technical grade will work just fine.
So how long did this actually take, and what is your profit after costs of the acid and equipment?
What is the carat of your bar?
Takes about two days - 18 hours or so. Cost to refine it is less than $100 all in. We get the scrap at yard sales for very little cost. You make your profit when you buy
What's that stuff that was undissolved platinum? Stones are often set on plat.
Possibly
I have been using a small centrifuge to pull down all of the sediments.
@J Fz In my cleanups the centrifuge will make clear solutions when filtering fails. Usually the clear liquid contains the gold. If the pellet in the centrifuge tube is the desired product, it is usually ready to wash after removing the supernate.
@@sanmarzano can you do it with the volume of gold solution he has at the end?
@@unh0lyav3ng3r8 I have one centrifuge that can hold 4 tubes of 50ml each. You can spin, clean, refill and continue all day long. The need for filter paper is all but eliminated.