ONLY this acid can dissolve GOLD. Selenic acid

  Рет қаралды 183,093

ChemicalForce

ChemicalForce

Күн бұрын

Пікірлер: 447
@Hydrazine1000
@Hydrazine1000 Жыл бұрын
I read the title of this video, and thought _"Hey, but aqua regia can dissolve gold!"_ ... and then it hit me: aqua regia is a _mixture_ of two acids, it's a compound chemical. It's not a (singular) acid. Ok, crisis averted, carry on!
@kingnhonj954
@kingnhonj954 Жыл бұрын
That's the exact thought I had also
@menjolno
@menjolno Жыл бұрын
no. aqua regia is nitrosyl chloride. It is not a acid because there is no hydrogen. It is a salt
@davidmackenzie9701
@davidmackenzie9701 Жыл бұрын
Aqua regia is a solution of nitrohydrochloric acid. The traditional solution is comprised of a 3:1 mixture of hydrochloric acid and nitric acid, respectively. It will oxidize over time to form toxic nitrosyl chloride, nitrogen dioxide and chlorine gases.
@Hydrazine1000
@Hydrazine1000 Жыл бұрын
@@menjolno Uhmmm, there is nitrosyl chloride _present in_ aqua regia, due to a chemical balance (reversible reaction) between HCl and HNO3 on one side and H20 and NOCl on the other side of the equation. And since NOCl is gaseous, and some will outgas, it can be regarded as a decompostion product. Aqua regua is still (mostly) about 1 volume part nitric acid to 3 parts hydrochloric acid. (1:3 molar ratio to be more accurate.)
@martyc2051
@martyc2051 Жыл бұрын
i too was thinking aqua regia, but then realized that its a compound, and neither of the 2 acids can effectively dissolve gold on an independent basis (if im wong, i do stand to be corrected of course)
@gefulltetaubenbrust2788
@gefulltetaubenbrust2788 Жыл бұрын
Man selenium is such an underrated element. Just those blue flames are cool as hell, not even mentioning its awesome chemistry, just a shame most its compounds are toxic :(
@ChemicalForce
@ChemicalForce Жыл бұрын
underrated like my channel 😂
@chikianglim3632
@chikianglim3632 Жыл бұрын
@ChemicalForce Nah that’s not true
@thebogsofmordor7356
@thebogsofmordor7356 Жыл бұрын
​@@ChemicalForcethose of us that know, know. But yes, even after this long how you have only 150k subs blows my mind. You have the most beautiful chemistry on KZbin!
@gefulltetaubenbrust2788
@gefulltetaubenbrust2788 Жыл бұрын
@@ChemicalForce lol that's true
@willgund779
@willgund779 Жыл бұрын
@@thebogsofmordor7356 I think most people just don't understand chemistry, and don't have the patience to appreciate it
@skyethebi
@skyethebi Жыл бұрын
I really love when you show the synthesis of compounds in the video such as with nitrosyl perchlorate, PbCl4, Cl2O6, and any of the pyrophoric gases.
@skyethebi
@skyethebi Жыл бұрын
It’s interesting that silane is generally created using a source of H+ and germane is created with a source of H-. Is that because it’s hard to get germanium in a negative oxidation state to begin with?
@vornamenachname6300
@vornamenachname6300 Жыл бұрын
I've wanted to see the reaction with gold for years, but there was so much more cool stuff in this. Awesome video!
@Progamezia
@Progamezia Жыл бұрын
dude, im telling you, these videos are so good, exotic and just overall insane. Keep it up. Thank you Felix for making these awesome videos and cultivating a love for chemistry within many.
@therealtime-o
@therealtime-o Жыл бұрын
As always, a great Video. Thank you for all your effort.
@bedlaskybedla6361
@bedlaskybedla6361 Жыл бұрын
Nice video! You could try to dissolve elemental S, Se and Te in H2SeO4, they form the same coloured polycations like in H2SO4, but they are less stable in H2SeO4 due to its oxidizing properties (hot H2SeO4 oxidize them to IV oxidation state).
@YunxiaoChu
@YunxiaoChu 4 ай бұрын
Cool
@TooMuchMiddle
@TooMuchMiddle Жыл бұрын
Another fascinating and beautifully filmed lesson in chemistry. It is criminal that you don't have more subs.
@Tranarpnorra
@Tranarpnorra Жыл бұрын
Amazing chemistry and excellent photography as always! My only real practical contact with Selenium is a Selenium rectifier. As an automation technician/electrician I've had a few of these go bad on me. The smell they give off when burned is almost puke inducing.
@juliofoolio2982
@juliofoolio2982 Жыл бұрын
Your deadpan delivery with the dramatic explosions hits me as deeply comedic. Thank you.
@glarynth
@glarynth Жыл бұрын
Amazing photography as always. It's nice to see these exotic substances up close and not die.
@Lucinat0r
@Lucinat0r Жыл бұрын
You should do a video with the Slow Mo Guys, would love to see some of the extremely fast reactions at super slow mo. since they can do over a million+ fps it would produce amazing shots.
@filipstone2
@filipstone2 Жыл бұрын
Holy! That was an incredible video. Thanks for the detailed documentation of the synthesis. All of those selenium compounds are terrifyingly toxic. I'd love to see your safety set up some time. Thanks for all the hard work!
@prapanthebachelorette6803
@prapanthebachelorette6803 Жыл бұрын
Yes, safety tips please 😊
@jimcoppa6946
@jimcoppa6946 Жыл бұрын
That was quite beautiful the way those sulentic acid crystals were formed good job
@Luna-br3jb
@Luna-br3jb Жыл бұрын
The macro shots this man produced are some of the most genuinely beautiful images I’ve seen in my life
@PhantomKING113
@PhantomKING113 Жыл бұрын
One of my favourite acids of all times, if not my favourite. Until now there was... one video about it on KZbin? PMC is a good channel, but so is this, and we actually get to see its famous reaction with gold! Great video! Edit: I think very concentrated, very hot sulfuric acid can also eat at gold, though very slowly.
@mokouf3
@mokouf3 Жыл бұрын
Piranha solution (sulfuric acid + hydrogen peroxide) can dissolve gold.
@grebulocities8225
@grebulocities8225 Жыл бұрын
@@mokouf3 Sreetips tried that, but essentially no gold dissolved even when strongly heated.
@KomradZX1989
@KomradZX1989 Жыл бұрын
Every video you make I always think, “wow this is the most beautiful chemistry video I’ve ever seen…” and then you make another video 😂❤ Love your work buddy! You rock!!!
@duncanwilkie179
@duncanwilkie179 3 ай бұрын
That was an action packed video. You invested a lot of time in preparing, testing, filming and editing the content. A huge thank you for your efforts. You have some sweet glassware and equipment.
@chikianglim3632
@chikianglim3632 Жыл бұрын
Dude you are one of the best chemistry channels on this app. Only one working on such exotic reagents. Keep it up!🎉 (maybe a reaction of copper sulfate or copper selenate with different salts? e.g magnesium chloride? Maybe some metal salts have differing solubilities and color?)
@TheBackyardChemist
@TheBackyardChemist Жыл бұрын
I die inside a little bit every time someone calls a website an app...
@acetate6
@acetate6 Жыл бұрын
@@TheBackyardChemist Feel you
@jtbmetaldesigns
@jtbmetaldesigns 4 ай бұрын
You made my day with slow motion selenium acid oxidation’s of other compounds. My life is more spectacular watching this!
@asmrlifereal
@asmrlifereal Жыл бұрын
Amazing Video. Thank you for the closed caption and segment titles!!!
@zajimavepokusy1666
@zajimavepokusy1666 Жыл бұрын
Wow, I'm so amazed. I never even heard of selenic acid. It was also pretty cool to see the the copper selenate that looked the same as copper sulphate. I think that by mixing the copper selenate with sodium hypochlorite you might get red selenium along with copper oxide. Aldough i'm not sure. I think this was one of your best videos, keep up with the great work ! Amaizing.
@mark879
@mark879 Жыл бұрын
Such beauty! The footage, the music, the crystals, the fly, wow! Amazing production value! I thank you for sharing and I thank the KZbin algorithm for bringing me here. Love these videos!
@CatMowpurr
@CatMowpurr Жыл бұрын
Looks like a small wasp or ant, with the wasp waist, long antennae and 4 wings
@ZoonCrypticon
@ZoonCrypticon Жыл бұрын
Very interesting! Could you next time perform experiments with telluric acid ? And if you should have enough leisure time and a good standing with the secret service, perhaps polonium hydroxide ?
@ARSZLB
@ARSZLB 7 ай бұрын
i swear i could watch seed recrystallizations all day. just so beautiful
@beefgoat80
@beefgoat80 Жыл бұрын
I work for a jeweler. I love how much chemistry goes into purifying recycled gold. The metals most "gold" jewelry is alloyed with is treated like slag. But it's all about creating a gold precipitate they can melt down and turn into more jewelry. It's crazy how much gold has been recycled. Some of the gold in your wedding band just might have come from some ring that was sold to a gold buyer, and, in turn, was sold to a jewelry manufacturer. My boss buys old jewelry all of the time. We remove all of the stones and send it off to a recycler. My boss then gets a cut of the gold extracted. Most gold you wear on your finger is old gold.
@christopherleubner6633
@christopherleubner6633 Жыл бұрын
I'm pretty sure that gold is the most recycled metal. Literally recycled since it was plucked from rocks before the bronze age...
@beefgoat80
@beefgoat80 Жыл бұрын
@@christopherleubner6633exactly. if it was easy to get gold out of the ground, there wouldn't be such a large industry focused solely on recycling gold. For every person wanting to buy a gold ring, there's someone looking to sell a gold ring. It's the circle of life. Lol
@RedDeckRedemption
@RedDeckRedemption 2 ай бұрын
​@@beefgoat80copper and tin were also extremely abundant on the surface. Your brass doorknob was a bronze sword 6000yrs ago lol
@Aut0mati0n
@Aut0mati0n Жыл бұрын
When you hit the sodium with the second drop of the acid you could see the angular momentum for a second. Super cool.
@Marbslab
@Marbslab Жыл бұрын
Incredible video with all the close-ups and slow-mos.
@navidahmed1
@navidahmed1 Жыл бұрын
Man! The production quality is through the roof!
@drmilkweed
@drmilkweed 11 ай бұрын
this video really showcases the beauty of pure chemistry. I've done my fair share of vacuum distillations and crystallizations and this really captured the sense of awe and wonder i felt the first time I did them in organic chemistry lab. thanks for the awesome content!
@tanmoysarkar5848
@tanmoysarkar5848 18 күн бұрын
Recently found your channel and now I can't stop watching!
@ЕвгенийДробышев-ц2т
@ЕвгенийДробышев-ц2т Жыл бұрын
As always an impressive video!
@TheCubedPixel
@TheCubedPixel Жыл бұрын
11:56 That random wasp deserves an Oscar
@umbrakinesis2011
@umbrakinesis2011 Жыл бұрын
Incredible, after quite a few somewhat tame experiments, I was quite surprised when the test tube exploded from the white phosphorus -p4 is usually violent, but I wasn't expecting such a bang from so little. Awesome chemical, and a great presentation.
@OsmioIridio-og8cn
@OsmioIridio-og8cn Жыл бұрын
Great contribution to our understanding of Selenium chemistry
@HurricaneOK1
@HurricaneOK1 Жыл бұрын
Very relieved the fly turned around. What a plot twist, having a totally new character just appear like that.
@terribleterrier1685
@terribleterrier1685 Жыл бұрын
How do you not have over 500k subs by now? Your videos are freaking great. I blame KZbin.
@anthonycabrera6318
@anthonycabrera6318 Жыл бұрын
Awesome video like all you produce, can you use perchloric acid next and his reactions with diferrents elements🤔🤔
@hitoall123
@hitoall123 Жыл бұрын
the crystalization of selenic acid, pure magic, thank you
@derktewinkel
@derktewinkel Жыл бұрын
Very nice video! I really liked the preparatory part with the distillation!
@pyr0duck676
@pyr0duck676 Жыл бұрын
Once I finish grad school and get a nice paying job next year, I'm definitely going to become a Patreon! Thanks for your videos!
@brandonowens282
@brandonowens282 Жыл бұрын
7:24 awesome shot of the crystals converging! As an amateur hydro metallurgist, it's interesting to see yet another why to dissolve gold. What do you use to precipitate the gold back out of solution?
@yahyae3416
@yahyae3416 Жыл бұрын
Sodium metabisulfite or iron 2 chloride
@brandonowens282
@brandonowens282 Жыл бұрын
Thanks! Do you happen to know how to drop aluminum from a chloride solution? I was messing around with some e-waste using hydrochloric acid and hydrogen peroxide, I'd like to dispose of it in a ethical manner. I used aluminum to rapidly cement copper, now I'd like to get the aluminum out, neutralize the pH and dump the solution down the drain. Got any suggestions?
@yahyae3416
@yahyae3416 11 ай бұрын
@@brandonowens282 In fact, it is not a problem to neutralize aluminum chloride with a base and pour it into the sewer. You can even throw the precipitated aluminum oxide onto the pavement.
@kenbrady119
@kenbrady119 Жыл бұрын
Fantastic footage! Selenic acid has fascinated me since I was a kid. Any chance of moving on to tellurium?
@sqookylol2218
@sqookylol2218 Жыл бұрын
good background music choices idk how but it just is amazing and fits what you do
@VinsCool
@VinsCool 11 ай бұрын
13:00 that looks like a delicious mug cake that was just slightly overbaked, yum!
@Дмитрий_1981
@Дмитрий_1981 Жыл бұрын
Most interesting experiences. Thank you. P.S. It’s a pity, on pause, the KZbin interface icons obscure the equations of chemical reactions, which I don’t always have time to read, as, for example, at minute 16:11
@iankynaston-richards5239
@iankynaston-richards5239 Жыл бұрын
Tap on the screen again and the pause icon will go.
@DavidePatti-x3l
@DavidePatti-x3l Жыл бұрын
wow! i haven’t any words! i’ll follow your channel. i like the way you make video and also the particular reaction you do.
@tracybowling1156
@tracybowling1156 Жыл бұрын
I ❤️ your videos, Feliks! Thank you!
@kalebmaciver7117
@kalebmaciver7117 Жыл бұрын
great video, I have really enjoyed the selenium chemistry you have shown so far. are you going to continue with some more selenium chemistry?
@tiagoferreira086
@tiagoferreira086 Жыл бұрын
Your videos are always awesome! Great content and editing skills!👍
@pablog.3906
@pablog.3906 5 ай бұрын
Beautifully made!
@Jeff-jr4xw
@Jeff-jr4xw Жыл бұрын
Great editing with the music!
@xXthadillacXx
@xXthadillacXx Жыл бұрын
This footage is amazing, man. Great job
@joaquinfernandez8928
@joaquinfernandez8928 Жыл бұрын
BEAUTIFUL SHOOTAGE! 👍👍
@Bike36_
@Bike36_ Жыл бұрын
Nice video! Can you record your cleanups just as NileRed does? I think it would be fun to watch some more exotic cleanups. It must be pretty challenging to clean up after using things like hydrazine and selenic acid. Also, instead of regular sugar, you should have tried using glucose because selenic acid is an oxidizing acid and glucose is a reducing sugar. I think it would have been interesting.
@chikianglim3632
@chikianglim3632 Жыл бұрын
Yesss!
@DaftFader
@DaftFader Жыл бұрын
You saw the clean up in the video ... adding white phosphors and Hydrazine to the rest of the selenic acid. xD
@Bike36_
@Bike36_ Жыл бұрын
​@@DaftFaderYeah lol. The best way to clean stuff up is just blow it up, as we all know!
@DriftersDiesel
@DriftersDiesel Жыл бұрын
A master of art and science. These videos are incredible.
@ellisoneves
@ellisoneves Жыл бұрын
Very impressive video! Congrats
@Ang3lUki
@Ang3lUki 2 ай бұрын
Who does the music in your videos? Are you friends with Ennio Morricone? The music always is perfectly inline with the action on screen, it's amazing! The dissonant strings and piano notes when the fly showed up were so spot on!
@lorenwilson8128
@lorenwilson8128 Жыл бұрын
HCN is technically an acid and dissolves gold. Hydrogen cyanide is used in most gold-mining operations to dissolve the gold out of the ground-up ore.
@markfudger5267
@markfudger5267 Жыл бұрын
Used to be called Prussic acid.
@YunxiaoChu
@YunxiaoChu 4 ай бұрын
Ehhh still needs oxygen to work
@VendettaProspecting
@VendettaProspecting Жыл бұрын
AU is a fantastic element
@fukpoeslaw3613
@fukpoeslaw3613 Жыл бұрын
​@AuschwitzSoccerRef.Who are you and who stole your gold?
@mobilemarshall
@mobilemarshall Жыл бұрын
really nice footage, thanks for making these videos
@artsmith1347
@artsmith1347 11 ай бұрын
Beyond the interesting chemistry, the photography is very good. I find the iodine here and in other of your videos to be especially interesting because its color is unusual.
@georgejanzen774
@georgejanzen774 8 ай бұрын
My man has a death wish, splashing around all that hydrazine...
@chir0pter
@chir0pter Жыл бұрын
that bee finding your selenic sugar cube and almost taking a drink, like finding an oasis in the desert but it's toxic to drink
@among-us-99999
@among-us-99999 Жыл бұрын
I think molybdenum and niobium are under-appreciated elements
@ГеоргийХромов-м3щ
@ГеоргийХромов-м3щ Жыл бұрын
Very impressive chemistry of selenium! It would be pretty interesting to look at complex substances and organic compounds of this element.
@crabsaresilly8317
@crabsaresilly8317 Жыл бұрын
You leave on 2 table lamps with 2 different kind of bulbs. You wait to see which type of bulb burns out first after a while and how long it takes for each one. Would you consider this example to be a scientific experiment ? ...
@mistercroc9407
@mistercroc9407 Жыл бұрын
Another great piece
@Yamazaki339
@Yamazaki339 Жыл бұрын
Amazing video! As usual!
@user-SmashHit1234perfect
@user-SmashHit1234perfect Жыл бұрын
Selenium is a chemical element with the symbol Se and atomic number 34. It is a metalloid (more rarely considered a nonmetal) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. in 1817 by Jöns Jacob Berzelius, who noted the similarity of the new element to the previously discovered tellurium (named for the Earth).
@100-pc-notbot
@100-pc-notbot Жыл бұрын
I love the sound track to this video 🙂
@stick-Iink
@stick-Iink Жыл бұрын
11:34 fly moment
@freyjaandersdottir3311
@freyjaandersdottir3311 Жыл бұрын
always a good time when the hydrazine comes out!
@petevenuti7355
@petevenuti7355 Жыл бұрын
I'm surprised you didn't try and mix with permanganate‽ Also thinking that gold selenate could make some interesting red glass when melted in...
@michaelseitz8938
@michaelseitz8938 Жыл бұрын
Amazing images 💖💖💖
@DavidFMayerPhD
@DavidFMayerPhD Жыл бұрын
What about telluric acid?
@mienfobelets4820
@mienfobelets4820 Жыл бұрын
Excellent camerawork
@tomassanchez6010
@tomassanchez6010 Жыл бұрын
Excellent video!!!
@dragskcinnay3184
@dragskcinnay3184 Жыл бұрын
I just discovered this channel. First of all, this is some seriously good shit. And second, you know what we all need? A collab with the SlowMo guys
@matthewcomfort7719
@matthewcomfort7719 Жыл бұрын
thank you for your demonstrations
@accipiterignitus5123
@accipiterignitus5123 7 ай бұрын
Man this channel is f underrated
@gray5504
@gray5504 5 ай бұрын
you have actual subtitles. subscribed
@Ang3lUki
@Ang3lUki 2 ай бұрын
One of the biggest takeaways I think could be had from all of your videos, is that you cannot react faster than reactions. Every time you're interacting with a reaction and it explodes, the slow-mo shot always shows you reacting long after chemicals have splashed everywhere and the reaction has gotten out of hand. It's a good thing your safety standards are so good, and that really drives the point home.
@bunsenn5064
@bunsenn5064 Ай бұрын
It would be interesting to explore the hexafluoropnictogen acids, like hexafluorophosphoric acid, hexafluoroarsenic acid, etc. they have some pretty cool properties.
@pakey423
@pakey423 Жыл бұрын
Now make a Piranha solution with Selenic Acid instead of Sulfuric Acid......😉😁
@ChemicalForce
@ChemicalForce Жыл бұрын
😂 haha this idea has been in my head for a long time! I've already tried dissolving crystalline selenic acid in 60% hydrogen peroxide (the highest concentration of commercially available hydrogen peroxide) on cooling. I think I'll take on this video but first I need to finish the material on WF6.
@YunxiaoChu
@YunxiaoChu 4 ай бұрын
Hmm.
@Scou73r
@Scou73r Жыл бұрын
I'd love to see you collaborate with a super slow framerate channel for very fast reactions. Maybe slo-mo guys?
@motionsoftwaresim
@motionsoftwaresim Жыл бұрын
Love the video and technical contact. Absolutely hate the repetitive Muzic!
@elmatysal4032
@elmatysal4032 Жыл бұрын
Great video my bro
@pkrent3461
@pkrent3461 Жыл бұрын
12:43 perfect brownie recipe 😍
@diablominero
@diablominero Жыл бұрын
As I recall, strontium sulfate precipitates much slower than barium sulfate (like a 10-second delay between mixing strontium nitrate with sodium sulfate and seeing precipitate). Does strontium selenate also precipitate with a delay, or is it instantaneous like barium selenate and barium sulfate?
@thesentientneuron6550
@thesentientneuron6550 Жыл бұрын
Looking at the reaction of selenic acid dissolving gold, it seems to work because it's an oxidizing acid much like how aqua regia or chlorine water can dissolve gold. Makes me wonder if concentrated (98%) boiling sulphur acid can also dissolve gold...?
@grebulocities8225
@grebulocities8225 Жыл бұрын
It can't, at least not appreciably. Sulfate doesn't seem to complex with gold as well as selenate does.
@ajofmars2579
@ajofmars2579 7 ай бұрын
I have a question; can this acid dissolve any other noble metals that are generally recognized as very non reactive, like Platinum or Iridium? I just googled about dissolving Iridium, and someone says that Iridium can be dissolved by molten salts like NaCl or NaCN, but not Selenic acid. I think this would be a very interesting video idea!
@LtBosoX
@LtBosoX Жыл бұрын
That forbidden choco lava cake looked delicious. Too bad that impatient fly didn't stick around till it was done.
@amitygames9318
@amitygames9318 5 ай бұрын
Work of genius. Holy smokes, how comes the reaction with P is so violent ?
@LyingOstrich
@LyingOstrich 3 ай бұрын
Phosphorus is highly reactive.
@Lunaty972
@Lunaty972 Жыл бұрын
It's the absolute first time i see gold forming a molecule😲
@brandynamite3022
@brandynamite3022 Жыл бұрын
I heard that phenolpathlein turns orange in concentrated sulfuric acid, I wonder if it will do something similar in selenic acid
@canonicaltom
@canonicaltom Жыл бұрын
Try contacting the slo-mo guys to see if they might be able to film some of the faster reactions at much higher framerates
@cake4919
@cake4919 Жыл бұрын
I wonder if HCN can dissolve gold on it's own, it might need to be HCN in water though so the gold cyanide dissolves which would push the reaction forward.
@SuperAngelofglory
@SuperAngelofglory Жыл бұрын
As far as I know, perchloric acid does not dissolve gold. However, Wikipedia claims dichlorine hexoide does react with gold, releasing chloryl auroperchlorate ClO2[Au(ClO4)4 and chlorine.
@WilliamFord972
@WilliamFord972 Жыл бұрын
Around 12:00 that fly was like, “NOPE!”
@skyethebi
@skyethebi Жыл бұрын
8:45 for an acid (or mixture) to dissolve gold it has to be able to oxidize it right? That’s why nitric acid is required in aqua regia; however nitric on its own can’t dissolve gold. Is that because gold nitrate is unstable? I know that aqua regia forms chloroauric acid when it dissolves gold which makes me wonder if the gold needs to be coordinated by something (such as chloride ions) to remain dissolved in solution. If that’s the case I’m wondering what’s coordinating the gold when selenic acid dissolves it. Furthermore, just out of curiosity can you dissolve gold with other hydrohalic acids mixed with nitric acid? It might be cool to do a video about trying to dissolve gold in various acids and combinations or even other things like ICl.
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