NurdRage - 2012-07-26
In this video we dissolve a gold coin in acid. Warning: This reaction produces toxic gases and handles corrosive acids. It should be performed in a fumehood with gloves. the 1/20th troy ounce (~1.5g) gold coin is reacted with 10mL of 12M Hydrochloric acid and 1-2mL of 15M Nitric acid. The result is orange chloroauric acid.
Great video. Thanks for approving my responses :)
According to my text book aqua Regia is made of
1 part of conc. HNO3
3 parts of conc. HCl
Class 10 ncert board student question from chapter metals and non metals.
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@FLAME OUT GAMING ya main wahi padh raha tha abhi
Yeah that's in CBSE class 10 right
Dude If You Open NCERT Class 10 Science Text Book, It is clearly given that Aqua Regia is a freshly prepared mixture of HCl and HNO3,Present in a ratio 3:1 ,So Hydrochloric Acid is obviously present thrice as Nitric Acid....
Very interesting, thanks for updating me. I stand corrected. And yes, the point still remains. If something rare is made incredibly abundant, its price tends to go WAY down. ^_^
Top shelf education my man
A++ exactly what i was looking for 👑👑
i love your demonstrations i learn more on youtube then i do at school :D
I love the new channel design keep the great videos coming!:D
"it affects the inflation of currency." The irony...
Right on. This should prove useful for recovering gold plating from various items.
watching your videos make me feel like a genius XD
great process for crushed quartz too.
And here I thought gold was perfectly chemically inert. I never knew that it was possible for it to react with anything! Thanks for enlightening me!
It would be great to see you turn it back to metal gold! ^^ thanks
turn it back into gold
@Siyuyang Zhang play back the video
Add zink
@Siyuyang Zhang add sodium metabisulfite i think
@Samuel Xu correct
Just Rewind the video. Simple
hi! i would like to see: 100 % HCl gas liquified (no ions, pure HCl) and liquid CO (not CO2)
How would you use this process to make monatomic gold? Or what steps need I take to break the gold down into single atoms?
Hi guys I just I'd like to add something here. Be very careful with nitric acid. It is an oxidizer so keep all flames sparks sources of fire away from it. Oxidizers will significantly enhance the flammability of all fuel sources that it is in contact with.
AWESOME!!! Can you please make a video of putting the gold back onto the metal!? Thanks for the great stuff!
This one deserves a thumbs up!👍
Jesus - this must have been expensive. Thanks for your dedication to what you do. You've enhanced my lab skills greatly.
Can you do a video on recovering precious metals from scrap electronics and show how to separate the gold, silver, copper and the other stuff.
Id love to see it turned back, especially if you can revert it to pure solid gold
wohooo Hungary for the win! great vid as always.. keep it up :D
Oh..... That's amazing! 😌
Very cool. Can you do a video where you recover the gold?
Hey, I've been watching your videos for quite some time and I'm enjoying them so thanks for uploading. Now I have a question, what is your education? (chemist,chemE,something unrelated,etc...) If you don't feel comftrable answering no problems and again thanks for uploading these videos.
when did you perform this reaction? you managed to dry that acid from the coin, or that was another sample?
I find it really hard to find gloves that fit my fumehood. But concerning the video, will we get to see the reduction to reclaim the metal?
great explanation. I have so much to learn
hey awesome vid , you should make another of converting the gold back to metal
Awesome, will you extract gold ions and solidifiy them in some future video ?
can you do video where you reverse the process by return the liquid acid (with gold ions)back into gold?
with which substance did you do the last drying process?
can you make a video where you distil the gold out of the solution and can you turn mercury into gold?
I believe it is in a pseudo-first order reaction since the concentration of the Nitric Acid is so high, so as long as the concentration is highly exaggerated to the concentration of the HCl. 15M, 10M, you could probably pull it off with 5M.
from that final state, can you then get the gold to form other compounds that have interesting properties?
a video of the inverse reaction could be great
Can you do the video of separating the gold?
Wow! One of the coolest videos I've ever seen! I wonder what will happen if concentrated phosphoric acid is used...
just currious but what was the total lapse time of the reaction including the "booster" shot?
now that is a LEGIT explanation, thanks. :)
@NurdRage Could you make a video in which you return it to its metal form?
What would the best reduction agent be to salvage the gold? Could we see that in a vid?
Please can you do a recovery video I am super curious about the backward reaction - sorry I am not sure what the chemistry term is , I am not a science major just interested in things like this. Thanks Nurd rage
You said this reaction works by having Nitric acid oxidize the surface and the Cl- ions carry away the Au into the AuCl4- compound. Does this mean a mixture of Nitric acid and table salt (NaCl) would be enough?
Impressive, not into chemistry, but the possibilities are endless.
I have to stop watching these or I will get hooked.
I would have loved to see you precipate the gold from this solution.
this is awesome, thanks
"It really makes you look like you what you're saying." Was that a mistake or really smart insult?
I would like to see it returning into gold :O
indeedItdoes - 2012-07-26
SO2 will reduce gold back. Not SO3.