Aqua regia process dissolving gold recovery reaction equation
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- เผยแพร่เมื่อ 22 ม.ค. 2021
- Aqua Regia Definition @MakeGold 👉 / archimedeschannel
Aqua regia is a mixture of hydrochloric acid (HCl) and nitric acid (HNO3) at a ratio of either 3:1 or 4:1. It is a reddish-orange or yellowish-orange fuming liquid. The term is a Latin phrase, meaning "king's water". The name reflects the ability of aqua regia to dissolve the noble metals gold, platinum, and palladium. Note aqua regia will not dissolve all noble metals. For example, iridium and tantalum are not dissolved.
Also Known As: Aqua regia is also known as royal water, or nitro-muriatic acid (1789 name by Antoine Lavoisier)
Aqua Regia History
Some records indicate a Muslim alchemist discovered aqua regia around 800 AD by mixing a salt with vitriol (sulfuric acid). Alchemists in the Middle Ages tried to use aqua regia to find the philospher's stone. The process to make the acid was not described in chemistry literature until 1890.
The most interesting story about aqua regia is about an event that occurred during World War II. When Germany invaded Denmark, the chemist George de Hevesy dissolved the Nobel Prize medals belonging to Max von Laue and James Franck into aqua regia. He did this to prevent the Nazis from taking the medals, which were made of gold. He put the solution of aqua regia and gold on the shelf in his lab at the Niels Bohr Institute, where it looked like just another jar of chemicals. de Hevesy returned to his laboratory when the war was over and reclaimed the jar. The recovered the gold and gave it to the Royal Swedish Academy of Sciences so the Nobel Foundation to re-make the Nobel prize medals to give to Laue and Franck.
Aqua Regia Uses
Aqua regia is useful to dissolve gold and platinum and finds application in the extraction and purification of these metals. Chloroauric acid may be made by using aqua regia to produce electrolytes for the Wohlwill process. This process refines gold to extremely high purity (99.999%). A similar process is used to produce high-purity platinum.
Aqua regia is used to etch metals and for analytic chemical analysis. The acid is used to clean metals and organics from machines and laboratory glassware. In particular, it's preferable to use aqua regia rather than chromic acid to clean NMR tubes because chromic acid is toxic and because it deposits traces of chromium, which ruin NMR spectra.
Aqua Regia Hazards
Aqua regia should be prepared immediately before use. Once the acids are mixed, they continue to react. Although the solution remains a strong acid following decomposition, it loses effectiveness.
Aqua regia is extremely corrosive and reactive. Lab accidents have occurred when the acid exploded.
Disposal
Depending on local regulations and the specific use of aqua regia, the acid may be neutralized using a base and poured down the drain or the solution should be stored for disposal. Generally, aqua regia shouldn't be poured down the drain when the solution contains potentially toxic dissolved metals.
Aqua regia process dissolving gold recovery reaction equation
0:35 aqua regia from my experiment
1:59 you will get a gold sludge powder that
2:16 up to 99.95 percent of pure gold
2:56 use hot water to clean the sludge powder
3:23 will get gold sludge powder
4:31 how to melt gold into cubes - วิทยาศาสตร์และเทคโนโลยี
👍👍👍👍👍 Fast Facts: Aqua Regia
Aqua regia is a corrosive acid mixture made by combining nitric acid and hydrochloric acid.
The usual ratio of acids is 3 parts hydrochloric acid to 1 part nitric acid.
When mixing the acids, it is important to add the nitric acid to the hydrochloric acid and not the other way around.
Aqua regia is used to dissolve gold, platinum, and palladium.
The acid mixture is unstable, so it is usually prepared in small amounts and used immediately.👍👍👍👍👍
personally i did exactly eleven tries but only two that worked, so i think i have a problem with sodium metabisulfit, please help me
Is it a problem when I am only able to buy 53% Nitric Acid to mix it ?
@@privat1531please use 1:3 formula
Honey wer is my wedding ring..!
Uhhhh, it is with me but in differnet shape😂
Here it is - *SHOWS A SOLUTION*
And then the man found himself infront of God.
🤣
😂
big thumps up sir thanks for sharing
wow great presentation sir thanks for sharing
Very shining in your gold .very nice sir
Thank you so much, this is what I'd been looking for long time, but the question is why the sodium metabisulfate need to mixed with water instead of add it directly? what's the ratio?
awesome experiment with definition hope today I have learnt something new
Thanks for the video and i like that
.
But how to neutralize the liquid, before giving sodium metabisulfite?
Pretty colors of dissolved gold!
If i'm going to start working with all these chemicals, where is a good place to get chemicals and stuff online, and what kind of safety precautions do you usually take?
Thank you so much for the al those experiments and videos. Just one question is it also can replaceable for scrap out the gold from CPU stuffs? Or does it melt others too?
👉👉👉👉 Other metals should be dissolved first by nitric acid.
Then use Aqua regia.
@@MakeGold So if my gold is mixed with random metals I have to let it sit in nitric acid first before making the aqua mix?
@@MakeGoldHow to dissolve rhodium sir?
When i should boile the aqua regia in 90* ? Before put into auqa the gold or after ? Please reply sir ( the boil section only can't understand )
I have an alloy of 50% gold and 50% silver and I want to remove the silver on the surface to make it appear to be a hundred percent gold. Is it possible by using this technique? Nitric only or by aqua regia?
2:09 is it true sodium bisulfate (NaHSO4) can be use for precipitate gold ?
I was looking for the equation described in the title. Did I miss that?
Greetings,
1. I have some artifacts of ABS plastic and some of Copper chains coated with 1 grams of Gold . Plastic is first copper plated and over that Gold is deposited - should i directly go for Aqua regia - Please advise - regards
This proves gold hearted person never changes his heart and betrays
Super vedeo..!!
❤️❤️ ❤️ Thank you very much ❤️❤️ ❤️
Can we use hydrofluoric acid for gold recover ?
I did like this but I got mud in grey color . What I made mistake? Now how can I make it proper? Please help me
Positivo 🌹🍀💲...
I followed the 4:1 ratio to dissolve 3.5g of gold i heated it for 6 straight hours yet it didn't dissolve the gold button .7 goes into the solution... i've used hydrochloric acid which is 15% concentrate....the .7 that went into the solution that i've tried to recover didnt have black color reaction when i poured the smb..it went dard red...need your advice..thanks
it's so interesting how we place so much value on something that can melt away so easily
We place value on it precisely because it does NOT melt away so easily. Gold is very inert. The acid mixture shown is one of the only ways to dissolve gold and one of very few reactions gold is involved in.
You can be sure HCl and HNO3 acid mixtures aren't just everywhere and dissolve gold accidentally.
Does it have any smell in dys process?
How can I get in touch with you
Did you get all the gold back?
Hello Sir, how did you get a red aqua regia solution? Concentrations of both acids used? Thanks
Hi he has clearly shown how aqua regia is made i.e by adding 1:3 respectively HCl and HnO3
Hello dear friend
I really liked this method but I just have a question please: how much water for how many grams of sodium metabisulfit??
10gms with 25 ml of water
Hello
i have so much in scraps, such as sim cards by thousands, that i collect since years, but no video is never explaining the process clearly enough...
Your video seems perfect. Thank you !
❤️❤️ ❤️ Thank you very much ❤️❤️ ❤️
@@MakeGoldhi sir can we use urea to make aqua regia weak and then we use iron sulfate to precipitate gold from water royal please I'm waiting for your answer????
Tanker near here had a failure today and leaked a bunch of Aqua Regia. It's nasty stuff.
What if there are many other metals including iron to separate.
Is it work for plated gold ?
What is the ratio of sodium metabisulfate?
Pls make new video telecommunications board gold recovery video
Thanks
Hi I need help with my gold, I did it but I failed, the sodium metabisulfite is sitting under my beaker
Thank u
How to recover the gold from tower board
Plz tell all steps from start to end
Hello sir
Can i translate your video?
Excelent
Hello, thank you for your exciting video. I have a question, after adding aqua regia to the gold is there any silver or copper or other elements remaining with the gold?
Imagine if the aqua regia with dissolved gold fall on ground
my friend how you kill nitric oxid in this solution
I already did this 3 times. I stuck in the sodium metabitsalfite option. Every time sodium solution not work for me. Please explain correctly for the sodium metabisalfite step please
little gold
100 ml = gold 50g
Hii sir it’s an awesome video
May I know how much aqua Regia solution is needed to dissolve 50 grams of gold?
He said 200 mililitres of aqua regia for 15 grams of gold alloy, he used ninety five percent gold ring. You will get the rest
What is this video about ?
Merhaba benim aque regia sizinki ile aynı çökeltiden bi avuç kahverengi çamur çıktı sizinki gibi küçük tüp pürmüzle erittim hiç birşey çıkmadı neden acaba altın çıkması gerekiyordu işi daha çok sizin videolarınızdan öğrendim başarılar
Merhaba bay arcimed benim sizin yardımınıza ihtiyacım var cevher halinde toprak var agua recia ile denedim başaramadım topraktan ayrıştırma yapmam için madde madde yazabilirsiniz öncelik sırası ile Türkiye den selamlar
What is the name of the powder you put when melting gold??? Anyone knows??
Borax
So the final button is 24K gold?
Sir 300 ML nitric acid and 300 ML hydrochloric acid mix aqua regia may problem gold loss next process sir 🙏🙏
Doesnt the zinc powdwr dump the copper and junk out too?
👉👉👉👉 Usually we get rid of these metals with nitric acid.
Hello there, I have a question if someone doesn't mind answering: Once you have your dried gold mud(some call this gold sand) what is the final step necessary to refine it into actual gold? Is it just the smelting(heating/melting) process? Thanks. :)
yes
Bruh
Electrolysis, by using it as anode pure good as cathode and gold st as electrolyte.
@@Go-DUsopp how can u make chlorine gas with electrolysis
What is the percentage of nitric acid and hydrocloric acid
3:1
When we getting gold from stone if there are ather metal in the stone is aqua Regia dissolve only gold r ather metals with gold?
No it takes certain and very percise conditions for ather to develope
So to answeryour question it would be a different reaction
Give some idea about gold recovery best video
❤️❤️ ❤️ Thank you very much ❤️❤️ ❤️
Platinum recover video
hi can be gold-plated jewelry
Very good 👍
❤️❤️ ❤️ Thank you very much ❤️❤️ ❤️
personally i did exactly eleven tries but only two that worked, so i think i have a problem with sodium metabisulfit, please help me
👉👉👉👉 little gold
👉👉👉👉 Aqua regia 100 ml = gold 50g
@@MakeGold thank u very much dear
Gold rush, Acid flux. Saturate me, I cannot get enough.
👍🤝❤
Merah seperti air teh ya
Ormus gold step 1?
Who else is here trying to figure out what that new sleep token song is about...lol
That was interesting just saying
these two chemicals will take the gold out of cpu chips very easy
Cadê , a legenda 🤷🤦
I'm really curious to know that if Aqua Regia can actually dissolve anything and everything in it,then what the heck is that test tube made of,it wouldn't dissolve..
Acids don't react with glass
@@punjabisinthehouse995Yes you're right, but I came to know that it's true only for certain acids like hcl,some other acids containing fluorine etc. are actually able to dissolve glass :)
It is good job ! But my questions : can we make gold without using any gold ? Or howmany gold use for good gold refining ? Please answer to me my sir !
Google what alchemy is my friend
love from my channel & pakistan
❤️❤️ ❤️ Thank you very much ❤️❤️ ❤️
I want you to make a video to recycle gold from a computer motherboard .. I want to know how much gold is contained in a computer motherboard, thank you
This video is done, search on our channel 👉 How to recycle gold from motherboard computer scrap | How to make gold recovery ic chips computer
Does the RAM socket & motherboard pins contain gold?
I think it is a good way to smuggle gold, do you agree ?
Ну короче все увидели что царь жрет клей и востанавливает клей в щелях
Gold tanistor uplod videos
Thank u very much sir for amazing help in this filed . can i get ur whatsaap because i have some questions ?
I need to speak to someone
This has deffo been used for illegal purposes before lol
Жесть))),ходьбы на русский переводили,а выход хороший.
Hi
Ram Fingers gold recovery easy
بماذا رسبت يااخي
How the hell do you get this many views on something this simple that a thousand other people have already shown? There's no originality anymore. Except on my channel of course. 😁
Natrium metha Sulfid is not good man ,what tolk you ,when you master then is simply,when not then is danger
С тигля золотище не собрал
RUS
Korean speaking please 🙏
ترجمه ب فارسی
I did same but my solution contain small particles gold not settling down to the bottom i dont know what's wrong with process
I need to speak to someone