Gold Reduction with Oxalic Acid -Complete Process
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- เผยแพร่เมื่อ 5 มิ.ย. 2024
- www.goldnscrap.com/index.php/g... ** In this video i'll show the complete process for the reduction of gold from chloroauric acid using oxalic acid and pH adjustment.
This process is used exclusively as a second refining step. Meaning, the initial Aqua Regia solution already contains high putiry gold that was refined once in to the area of 99-99.9%.
Unlike The previous video (see link below), the gold dropped this way doesn't precipitate as a cool lava lamp, but rather as fine brown powder that clumps together easily. Nice and shiny looking Dendrites might grow here and there. It is still very pure though :)
• Reducing Gold from Chl...
** The complete written tutorial which includes more pictures and exact amount of reagents used is now available here:
www.goldnscrap.com/index.php/g...
This is the first time i'm uploading a video with narration. Hope you will find it more convenient and easy to understand.
Learn more about Gold, Silver and PGM's Recovery & Refining at Gold-N-Scrap website:
www.goldnscrap.com
#goldnscrap #preciousmetals #goldrecovery #goldrefining - วิทยาศาสตร์และเทคโนโลยี
![Gold Refining - Precipitating Gold out of Aqua Regia [remake HD]](http://i.ytimg.com/vi/z_bYFCTVP4Q/mqdefault.jpg)
![Gold Refining - Precipitating Gold out of Aqua Regia [remake HD]](/img/tr.png)
The whole process is a lot more than I knew a few minutes ago. I think it is very cool. The man knows what he's doing. So, stop complaining.
Who's complaining? All the comments I've seen have been compliments and questions...
Not all.
wow I never realized how much work goes in to recovering gold, it's amazing
If you have junk computer,phone,tablet,some kind of machine don't throw it away get resources out of it.
Better , Sell The Scrap
💘🥰
This looks like a fun, profitable hobby, but seeing as how I can barely manage to make an omelette, I'm guessing this process might be a little above my skill set..
Your skillet level
twas brillig bad pun
WestPlays bad pan
its very easy, just buy the lab materials in amazon :)
I might some day when I have a ventilated, safe environment to do it in.
Seeing gold come out of dirty materials, it's like I'm watching alchemy. Excellent videos!
This is pure gold.
Yes Heisenberg, i love your videos.
Good to see an expert sharing knowledge with the public.
You are a legend !
in some other countries, you gotta be a servant for years to learn this, yet here you teach openly and freely.
once our lives end, i know you will feel something extraordinary for what you are doing now with your videos. totally the opposite compared to the ones that knows, and keeps it all to themselves....
Thats the difference of being a giving person, or a selfish person.
You win in the end.
To all those randomly spouting information here. 1. No these chemicals aren't expensive, but they can be tricky to obtain in high concentrations. 2. Yes if you could get old PC parts by hauling them for someone cheap/free you could turn a profit. Gold is very heavy and worth minimum of $1100USD an ounce.
You need time, money and expertise to pull this off but you could do this as a hobby and make a small amount of money on the side doing this, however without industrial sized machines and a large amount of scrap computer parts you're not going to make a living.
So kids when you tip your computors and mobile phones out, then get recycled in countries like India, where the labour cost and health standards are a lot lower, with the exception of the US dollar being a lot less in actual value.....What this gentleman is showing you is a clever way of getting gold back, I'm impressed. Thanks for the video's.
Great video! i really like the clear step by step explanations.
I work at a Gold and Silver Refinery, our process is similar except we electroplate our auric solution onto titanium cathodes with 99.95% gold anodes as feed stock, and only use a sodium compound to precipitate our waste auric solution in large tanks.
I agree with you - most people seem to have difficulties filming and doing their thing at the same time.. while talking. As a matter of fact, it does become confusing for the narrator at some point, but that's not an excuse. Especially when it is added as a separate recording (or at least it seems so). Good luck in your endeavors BTW. It's rewarding to see a person who accepts other's opinion even if it confronts their own.
Great tutorial and very informative. Take so much trouble to make some gold, if you don't get a very good recycle supplies, its not worth that time to refine some gold. But really this is good education!
"And now the fun part, after just 50hrs of work, $150 worth of chemicals, you now have a tic tac sized piece of gold, and one angry wife".
+thom suaree actually its more like 3 hours of work and $5 of chemicals for $500 of gold XD
It looks great, how much scrap you need for that much gold, and what do you use?
Very nice vids. Thanks for showing us in a clear way how to do it and thanks for all the cautions too, which is wise.
This series of videos is so cool. Thanks!!
It is produced by dissolving gold in aqua regia (a mixture of concentrated nitric and hydrochloric acids) followed by careful evaporation of the solution
Au + HNO3 + 4 HCl → HAuCl4 + NO + 2 H2O
Under some conditions, oxygen can be used as the oxidant. For higher efficiency, these processes are conducted in autoclaves, which allows greater control of temperature and pressure. Alternatively, a solution of HAuCl4 can be produced by electrolysis of gold metal in hydrochloric acid:
2 Au + 8 HCl → 2 HAuCl4 + 3 H2
If my neighbor saw me doing this he would call the cops.
sounds like your neighbor needs a life
Dude, of all the cool shit I have seen on youtube, this took the cake. I bookmarked your website and hope to utilize this process on all of the scrap electronics I held onto. You're awesome man, keep up the good work!
So how many grams or ounces did you end up with ? Awesome vids btw, thank you, I'm definitely going to try.
Amazing!! And such pretty gold!! Can you show us how to refine palladium , platinum , rhodium and iridium ???
Very good video, requires lot of patience and very good knowledge of using chemicals.
Hi, thanks.
What you are doing is good enough.
The process with oxalic is a re-refining process to ensure four nines gold or better. That is not always needed. For example, a jeweler that cast alloys would be satisfied with 999 gold
Excellent knowledge and process demonstration keep it up boss - can you specifically explain on when it is supposed to be hot and when cold thank you
Great video not being a chemist or scientist not something I would try. With the cost of materials to extract the gold powder is there much of a profit in the process?
there are also several different ways of reduction. But your method is fast & cheap. thnks for video
Pretty cool video! I have a ton of old computer boards and such laying around. Does this work on circuit boards too? Or is it just the leads/fingers?
***** anything that looks yellow :P
Hey that was pretty cool. is this the gold from the fingers? what is the weight in total? and can you please list the tools needed to achieve the final result? thanks!
I love that you show "the fun part."
Thats really awesome, is there anything else you can use besides hydrochloric acid to clean the gold?
You made it fun to watch ,great work
I appreciate your voice over I'm a dislexic and was about to slow down the video to a speed I'm able to read at you have no idea ! Thanks
hello my friend congratulations on the videos, is oxalic acid a reducer to precipitate? and to neutralize it can be sulfamic acid? before precipitating with oxalic acid can i neutralize with sulfamic acid? Thanks
nice bro, but is it worth it all the energy and materials + recyc of the waste?
The materials your putting into the solution, what types of things are they and what should not be in that solution, plastic, aluminum ect. thanks
That was awesome, your videos are very informative for some one like me who involved in gold bullion ...thank You.
Fricken Walter White over here
How a chemist makes his money. :P
***** You, my friend, deserve more thumbs up
Alex Fowler he should watch less breaking bad.
***** i wanted to make a joke like that... but there was you. with the Heisenberg joke :(
Great experiments. I am learning from them. gosh, 17 years surfing the web and until now I am doing something interesting. One question. Is oxalic acid a must ? I am bleaching gold with chlorine and Hydrochloric acid. then adding Sodium metabisulfate. Then taking the dust out and melting. Is it the right way?
that was beautiful!!! very simply explained and fun to watch, thank you
yes it would lovely to here some numbers.
How many fingers to yield a gram of gold.
So where can you buy all the chemicals and stuff that you need? And how much does it cost and how much do you get? I'd like to try this but i don't know where to find the chemicals, and how many times can you reuse them?
Very pretty. Nice narrative, it does sound like nerdrage.
love the technique and your voice!
@Martyna Wiaderek i dont know you but your comment made me jealous as fuck
It's never too late to learn something new !! :)
could you comment on the washing of the gold powder further and also the reducing flame your using, is it oxyacetaline, natural gas or map? do you think this is easier than dropping the gold out with "copperas", washing then using a electric furnace . Or the "SHOR" PROCESS?
Pretty awesome. What is the weight of gold you recovered?
this was nice lookin gold. meh i wish i had some too :/ but too melt irons and gold / minerals that can be melted like say if i have 1 ton of silver wear or whatever and i wanna melt it toghter and find a suitable form for it am i able too make this melting station at home or do i need to go to a melter / blacksmither?
i just can't stop liking you're video's :D.
you must love your job?
If by "phase separation" you mean solvent extraction (same thing) then yeah your correct! However, if you were to do a solvent extraction would you still use NaOH??
aside from the fingers are there any electronic parts like in tv or radio or old cellphones where you can get gold?
so is there a way to also make use of the dissolved copper and nickle from the first stage of processing? it would be a waste to dump those solutions
I enjoy your videos and like what you do. Keep it up!
So, what's the ratio of return? How much gold can you recover and how much did you spend on the materials to recover it (not including the equipment)?
cara muito bom video mais eu queria que voce metirace uma duvida sobre çido oxalico aonde vende meu amigo
You're videos are amazing! They're educational and interesting!!! .D.
this is great and all but i doubt that making gold out of pc parts is profitable. i mean the time and effort required to find and harvest parts then on top of that all the equipment to reduce it all down to pure gold does it really bring in a worthwhile profit?
Great videos! I have a newbie question. Let's say I have 100 regular 5-10 year old cell phones. What approx. would the total gold value be for these 100 standard mobile phones after complete extraction? Thx!
That's so cool, I need to try to do that with my mini forge and circuit board and doing stuff like that thanks for the inspiration. :)
I have 2 questions, 1) flaming gold power with some carbon-butane-like torch will not add some wastes from combustion? and 2) how many gold did you recover and/or did you recover the money expend within this long proccess?
are there places where I can bring in my gold fingers so it can be processed?
Is the amount of gold you actually get worth all of the time and material you have to put into it by the time you pay for your chemicals, electricity and gas for melting?
Out of curiosity, compared to the gold you obtain at the end, what is the cost of the chemicals and the total time needed to get from the Chloral Auric acid to the gold nuggest?
that's a lot of work to make a little gold...is there any profit margin after you've bought all these ingredients and done this?
Can all these acids be found over the counter? Where does one go about finding them.I have a few old Hp cpu boards and hdd controller boards from the sixties that are loaded with gold.
I have a 12 ounce nugget that is approximately equal parts of copper and gold. Can this method be used to separate out the gold?
No.
For the reasons you mentioned. No need to destroy a perfectly reusable BDG.
You can either adjust the pH of the Oxalic acid solution to 5-6 beforehand or just use Bisulfite solution to reduce the trace left over gold in the organic phase.
But all this has little to to with the process described in the video. Apples and Oranges.
So how much gold did you end up getting from all those scraps in ounces?
can i use the dirt to make a mold for hot melted aluminum to make a mold for the liquid gold to form what ever shape i want instead of dripping it in water
hello, how much did you invest in all the chemicals used in your videos and how much gold did you get in return?
i just cant sstop believing how we can utilize the available but scarce materials. Good job
how much worth of gold did you get from all these work?
this is very cool!
That was amazing to watch and learn. Thank you
why go thru adding Ar + HNO3 only to have remove trace elements at the end? why not just HCl/HNO3
Thanks for the Great Video. Whats the average cost of the chemicals used per batch? How do you get rid of the toxic sludge?
Cheers!
Remember, you start with acids (HCl + Acid Gold Chloride + some Nitric acid + Oxalic acid = pH0). That's why the addition of NaOH is controlled. I never want to go over pH1.
That is a great way to do it. I am curious if instead of the acid method, you have considered the flux method.
MAP GAS and FLUX !!! Melting Gold
Badass voice! Thanks for the narration!
Thank you for all the work you put into producing this and sharing your knowledge. I do have a question. The finished product you show as gold, how would that be rated for purity? Is there a 'karat' quantification?
24k, .9999 pure
ive been wondering does the whole process worth the time and the cost?
Is it possible to just melt the gold foil flakes into nuggets or a bar instead of going through the entire refining process? I understand the gold wouldn't be 99.9%, but would still be between 9 and 14k right?
Hi, I've been watching these videos for a little while and I think the whole process you go through is fascinating. Does disposal of all those chemicals cost you a ton of money? I'd kind of like to do this myself but it only takes one mess up and you are seriously hurt with some of those chemicals I see in the videos.
What about the nitric acid, should it be neutralised before the precitation?
If you are from the US, You should be able to find small quantities online or at local chemicals vendors.
hello i was woundering , what if there is copper and other metals on the pc borads, will it melt the copper and that too same as the gold and then the gold ruined. this is what im confussed about. which no1 explain's. or dos it just melt the gold and non other metals
thanks
wow.....this is what i've been looking for.....i'll subscribe
Can you tell me how to recover the oxalic acid? I have a book on refining and the solvent extraction method is shown in this book clearly, but oxalic acid is expensive so recovering it would be helpful. I paid a lot for mine and I would like to find a cheaper source.
you can usually find oxalic acid at the hardware store near the paint section, I used it to clean driveway once.
Hi, what is the overhead to purchase and set up everything you need to get started with this? thanks!
Do you know how much gold you get per electronic item (sorry, very ambiguous but a few examples would be good)? Do you need to melt down like 20 motherboards to get a gram of gold or something?
Hey there indeeditdoes, I just wanted to thank you for making your videos. There are more of them out there like yours, im sure, but yours are the first ones I have come across and feel that I do not need to look any further. I am no chemist, I am no hobbyist neither, I simply don't mind working for my earnings. And let me tell you, you make it look very easy. But I am quite sure it is not that easy. I do stumble on things late I have to admit. Your videos were posted 2 years ago. I have a question regarding what components to use for melt down. Are the pieces shown on your first video the only pieces to use in order to obtain gold? Please respond.
How much do the chemicals cost, and are they readily available to the general population?
How much was it worth, and how many computers did you have to go through to get that much?
That is a great process, and nicely performed.... a similar one uses formic acid. Question: In a dirty Aqua regia solution (contaminated with a variety of metals), silver, copper, iron, lead, etc. Would the oxalic acid, and adjusting the PH drop just gold ? or what else? Again Great job !
Mr. Wizard never taught me this. Seems like a lot of work for not much gold. How much is that worth?
Thanks for the suggestion of sodium or potassium oxalate. If that is cheaper and works just as good that is the answer.
I don't know about you guys but when I saw the beaker I was like "Is that a Bong?"
Can you also include other gold items like broken 10, 14, 18K gold jewerly (or gold plated) at the beggining of the process to get the pure gold out of it?