Gold recovery from Aqua regia acid Use zinc powder.
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- Опубликовано: 8 июл 2019
- Gold recovery from Aqua Regia Acid Use zinc powder.@MakeGold
Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange (sometimes red) fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.
Aqua regia is primarily used to produce chloroauric acid, the electrolyte in the Wohlwill process for refining the highest quality (99.999%) gold. 
Наука
Good..👍
Hello, and thank you for this video. I learned from him. I have a question: Did the zinc powder deposit copper with gold upon precipitation and got a lot of copper?
What did u do with the bulk sediment before using zinc..it only shows in process the sediment from the sync powder...or is this video only to show how to get back remaining gold sediment left in aqua regia
Thank you for teaching me how to do this.
Awesome video! Thank you!!
Your video is excellent. I have good content of pgm mix in iron ore. The ore obtained through gravity separation. How do i separate the base ore and take pgm out ?
Good job
Sir, which one is more effective for precipitation, by zinc powder or SMB? In case of by using zinc powder, shall it be boiled? Thanks in advance
سلام عليكم ورحمة الله وبركاته شكرا استاذ حفظك الله وزادك علما ونورا تحياتي لك وألف تحيت من المغرب الشقيق
That has the look of a homemade melt dish...
I wonder would you mind sharing what you made it out of? Or better yet maybe even make a video on the step by step procedure and all inclusive list of ingredients
Good.
Thank you🎉
Muito bom, técnica diferente 👏👏👏
vary informativ and inspirin video
Kindly help me tayyab
Great job
Recovery of Gold by Precipitation with Zinc.
This sample has 10-20 grams of Zinc, which theoretically can precipitate 0.7 grams of gold from pregnant solution refining or aqua regia acid after use
Wanna talk with u can send me your contact details
thank u.
what u tp no
How much was IC cheap weight
How much gold does per gram of zinc can precipitate? Any table to refer sir?
Good work
Hey there! Thanks for watching the video!
Great job! Your video was fantastic. Do you know anything about iridium ? I have ore containing 40% Ir 43% Cu and 7% Au and other 10% not as interesting. i would like to know how to separate them efficiently.
h8dus
Good
What is that Zinc Powder called there are many types of Zinc Powders can you specify which one it is
انت الافضل
✌✌💓
Where can i buy the powdered zinc with the added chemicals already added?
Very very very good
I have a question? Did you get rid of nitric acid in aqua regia, before precipitation with zinc?
درود
خیلی عالیه فقط خواهش میکنم اگه میشه اون موادهای که بهش اضافه می کنید اسمش زیرش بنویسید. خواهشن
Hello Sir, thanks for the video. When I used aqua regia to dissolve 1 g gold metal 18 Karats (Ratio 3:1 AR), after precipitating with SMB I got only 0.2 g powder even HNO3 was neutralized, what's the problem?
How the Wohwill process for refining gold is done?
It'd be interesting if was subtitled in Spanish, French or Portugues, for I've problem to understand the English spoken in America; I've to see this video many times to try understand everything.
you seem pretty good to me. love from america :-)
Dear you have done on Aqua regia residue , can we do it on complete Aqua regia ? Means in first recovery too ?
Thank you very much too...
Some HELPFUL TIPS for you Archimedes : 1 when you finish the hot water wash... rinse all your gold powder out of the beaker into a coffee filter with Borax already in it, and twist tight to ring out any excess water. 2 the powder does not need to be dried out completely . 3 wet sand your crucible bowl with 2000 grit sandpaper smooth...then fire it red hot and add Borax too hot glaze it hard. 4 Now once you have crucible bowl perfect add some more Borax and place the whole twisted coffee filter in and start the firing with propane 1st until it gets blood red hot, then go too acetylene brazing torch *( Not Cutting the cutting one )*because it will not blow the powder gold dust out of the crucible.
Thank you very much For your advice, I will take your way to use.
Robert Fields, i read your suggestion to archimides is perfect professional. May i know how do i seperate a fe2o3 hematite iron sand from tiny little palladium platinum in it. I use aqua ragia to leach it but iron are also leach into solution. The ore has been process by ballmill and concentrated by shaker table..
@@MakeGold
how to increase the weight of gold with zinc dust ??
Can we foound gold from zinc powder
robert give your insta id i want to talk with you brother
I didn't understand the gold powder in the last step. It should be brown or black.
After washing with nitric acid What color should the gold powder be?
Can you use the same method - Aqua Regia - if dust gold is located in dirt and then use sodium metibisulfite
Hey there! Thanks for watching the video!
What is the first mixture of kindness?
Great full you happy happy thank
Hello brother .In our area .Water in gold but micro bit we can't see but it is scientific proof .How can I remove gold from water . Please reply
what zinc powder?
Grats for the gold you have, however, this is kinda pain to watch. How about to test, if there is gold in solution (SnCl2). May be boil the solution and let it stand for some time is more effective (less work). This zinc powder is effective, no doubt, but so much work and chemicals... FeSO4?
Hi there over here in the UK its difficult to get the acids because we had a number of idiots using acids to burn flesh . The UK government made it clear you have to be licensed to use hazardous chemicals and to have the right protective gear visited by health and safety yes that's why it's difficult to extract gold from electronic wastes.
To bad Im willing to but all the e waste you have
Warigud
Thank you very much 🥰🥰🥰🥰
To melt gold powder. What is the white material you sprayed ??
Thankyou buddy
I like the video almost as much as gold
What is the powder you used when melting please say
Eritme potasını kendin mi? yaptın
hlo sir.
How to obtain gold when refinement is done by using only nitric acid.
It should refining gold with nitric acid by heating, what is the role of heating?
U spraying with the bottle, what is it?
Can we use metal zinc to precipitate gold in aqua regia when SMB is in excess and the gold dissolve back in the solution
will this work to get the magnetic metals away from the gold in my solution? the gold won't drop because some steel got in there (i'm getting red sediment and silver sediment only)
What materials the crucible made of ?
Hello friend, I would like to know where you can get sodium metabisulfite, I have it, but it doesn't work, I don't get the gold
If the zinc powder is so good as to get the final amount of gold why do you use the sodium meta bisulfite at all. Why not just use the zinc powder?
Pls. can you tell us what are the other chemicals you use before the zinc powder and what is zinc powder? Pls.
Para ko zinc boltey h
Nhi
What do you do with the waste chemicals
Zine powder belinya dimana ya? 👍👍
My question is: This method is only for remaining gold contained on the neutralized aqua regia, isn't it?
Hi, where do you get the ingredients i.e eg the acids, its hard to get it in india, please let me know where can i get them in india.
You can buy it in online stores
U can use uriya and fairus powder for gold recover.. better then zinc powder.. Im always use u riya and fairus powder
👍👍
رائع جدا
Even with out eliminating nitric acid??
i dont understand my friend
1 Sodium floure and sodium clore???
2 aqua regia remaining chemical
3 hot water please how make write me please
السلام عليكم ورحمة الله وبركاته كيف حالك يا. هل يممن. فديوهات كيف طرق فحص الاكاسيد الذهب والتبر في طرق سهله وشكرا
Gold salt is a powerful oxidant, zinc powder a good reductant. Zinc is zerovalent in its metallic powder form, meaning it has 0 charge (not a salt). When mixed with gold salt with a charge of +3 per gold atom, electrons from the zinc powder are transferred to the gold, this reduces the gold iii to gold 0, which is the metallic non-salt form of gold, zinc loses 2 electrons to become a zinc ii salt. In essence, zinc and gold switch places in terms of salt vs metallic form. The optimal molar ratio of zinc powder to soluble gold salt is 3:2
Woow you mean salt gold waste fusion plasm spherical..yes..tk so much ..yourscience thise video
Amazing this video
really cool explanation. Which country are you from sir?
With that said, I just subscribed to your channel! I have a question, can caustic soda be used to denox aqua Regia. I tried it. Im on day 5 of letting it settle 😳
@@BullProspecting Caustic soda: (Na+ OH-) is not able to be oxidized and thus there is no way to reduce the NOx in solution. If the solution is no longer acidic and at neutral pH, the oxidative species may have decayed by 5 days but no, caustic soda doesnt denox. If you are at neutral pH or even just slightly acid youl have more problems on your hands now. If you add Zinc it will drop the gold from solution slowely but the zinc wont dissolve thanks to no acid so you will have a mess. without a strong acid environment, SMBS won't react with to form SO2 gas which is needed to drop the gold. To neutralize NOx you need something redox active towards the NOx like urea, metabisulfite, or vitamin C. In short. Urea or vit C are to deactivate the solution but not drop gold. They just save you money on zinc and SMBS. Zinc and SMBS are to drop gold out of acid solution but in a large excess they can both deactivate the aqua requa solution AND drop out the gold. So: Au-Auqua Regia --> urea or vitc --->Zinc or SMBS ---> Gold powder. OR. Au-Aqua Regia ---> LOTS of zinc or SMBS----> Gold powder.
តើ ទឹកនឹងជា ទឹកអី្វ.ហើយមានម្ស៊ៅអ្វីខ្លះ.???
Как избавиться от примесей, которые вносит цинк с золотом?
Smart ...amazing...to fo seawater
How many minutes do you wash the gold powder with hot nitric acid?
3 time
hellow sir how to recover gold from aqua regia by use of arsenic sulphide plz upload ur video. thanks
👍👌
👍👍👍
What is zinc powder
good...tanks..
And airplanes!
When i melding zinc how many times I weight.
Sir how to recover gold from gold solution??
Muy buenas, hacer estos vídeos en español!
Hi can tell me how make this crucible
Hi, I have gold dust and I extract it with sodium cyanide, but I can not give it powder with sediment. Please help me. Thank you.
OMG!... This was hard to watch, first you left gold dust in the glass beaker. Then you blow the gold away with your gas torch, your gold losses must be high. If you sweep the floor you might get an ounce or two of gold at the end of the year off the floor......
Is this alchemy?
سلاماستاد
استاد درصد نیتریک جهت از بین بردن زینک
را لطف میکنید متشکرم .
Hello, nitric acid and hydrochloric acid form acid. Does acid dissolve gold?
Yes, a mixture of nitric acid (HNO3) and hydrochloric acid (HCl) can dissolve gold. This mixture is called aqua regia (Latin for "royal water").
The chemical process works as follows:
1) Nitric acid oxidizes the gold to form gold ions (Au+3).
2) Hydrochloric acid provides chloride ions (Cl-) which react with the gold ions to form a soluble chloroauric acid complex (HAuCl4).
The overall reaction is:
Au (solid) + HNO3 (aq) + 4HCl (aq) → HAuCl4 (aq) + NO (g) + 2H2O (l)
This is one of the few ways to dissolve the relatively inert noble metal gold. Aqua regia is able to do so because of the combination of an oxidizing agent (nitric acid) and a complexing agent (hydrochloric acid providing chloride).
Individually, neither nitric acid nor hydrochloric acid can effectively dissolve gold on their own. The mixture of the two acids is required for gold dissolution to occur efficiently.
So in summary, yes the acid mixture formed from nitric acid and hydrochloric acid, known as aqua regia, is indeed able to dissolve and solubilize gold through a redox and complexation process.
3:1 how to take two solution tell me
hi ..i am ur ubscriber sir
how i extract copper from copper ore???
@archimedes channel - why 97.5% shouldn't it be 99.99 %??
what is the white powder in the end and before firing? ah and also what is the name of the last solution after the gold fired?
Borex
How to recover gold from gold plating cynide sir?
Whey donot used NaoH before zanic powder here?when I can use Naoh
Can i contact you???
Can gold making possible by awuaragiaand zink
สวยค่ะ
💖💖👍
How much add zinc powder in a one liter of acuaregia solution
I SEND YOU A VERY IMPORTANT QUESTION COUPLE OF DAYS AGO......I UNDERSTAND YOU ARE VERY BUSY BUT I WOULD BE VERY PLEASENT IF YOU GONNA GIVE AN ANSWER ON MY QUESTION PLEASE.....I AM WAITING ...THANK YOU!!!
for anybody that can help me , how much water has to be added to solution? im a beginner please help thank you
Legend are here after knowing the aqua regia solution! 😎
Hi sir which country you are
I taken 75ml HCL 25ml Hno3 and add smb , urea but gold precipitate not come sir please tell me
Call me 8923433662
How possible zinc powder concert in gold by aquaregia
Sir please sheyer all meterial