Another really fun set of metal anions are the bismuthides and stannides. These are even found in nature in the form of some rare minerals such froodite.
I only just today found your channel, I don't know why I've never seen it before as I normally keep up to date on anything Cesium related, you have in my opinion the best videos of Cesium on the internet
Extremely cool! It's too bad that you didn't have liquid ammonia. I wonder how it would look with gold foil. Will liquid cesium absorb greedily it like mercury does 🤔
Thanks! I will first try it with gold that has been precipitated out of solution and when I get my hands on some gold foil I will try that too. But since the reaction needs heat to occur, I don't think it will look as cool as mercury. Since it does not form an alloy.
Unlikely it will produce an effect like the amalgamation of gold as it wont even react with powdered gold at room temperatur. Also gold fail will have a poor surface area :/
@@AdvancedTinkering gold leaf is available pretty readily though it may be an expensive way to buy gold by weight. Still quick and available in small quantities. Watch out for sellers selling imitation gold leaf though, if it seems too good to be true price wise it may well be.
Was literally just thinking about this compound, its definitely gotta be my favorite chemical compound out there (not a chemist though). Because of the metallic nature of both ions, and the ability for alkali metals to produce solvated electrons with ammonia, I really wonder if you could get some rather wild electrical properties or even solvated electrons from this stuff.
Another great gold compound I'd love to see is titanium-3-gold. Its supposedly incredibly hard and wear resistant, which is pretty neat. Gold chemistry in general is super cool and super underrated, those relativistic electrons and high electronegativity yield some pretty wild results!
i am postive that this is not a compund in a sense that a chemical reaction has a occured. What you are talking about - is an alloy. Completly different from what is shown here. Titanium has no way near the redox potential reuqired to reduce gold - not even the slightest chance. whst you mean is just mixing two metals together in a specific matter pretty mich the same deal like bronze is
@@TheBaBySiTteR90 I do think it is an alloy, but it definitely has a specific ratio of the atoms and some quite different properties. Probably best to just call it an alloy though, my bad lol
@@StuffandThings_ "Intermetallic compound" has been used for these (by proper scientists) but they are just very neat alloys with nice ordered lattices.
allthough i mentioned it - i never saw it been done either - especially not in form of a video! thanks so much for uploading this. Also something i did not know about is HOW fast its reacting with air
Redder makes sense, depends on the material of course. But a lot of things are yellow when fine, orange-red-brown when coarser. Cu2O behaves very similarly; when produced from reduction of Cu(II) solution, it's typically a "brick red" product. When produced electrolytically (copper anode in NaCl electrolyte), it's yellow initially, deeping to a bright rusty-orange color over time. Which, is CsAu a semiconductor too? -- Aha, yes, it is. So this is probably the case, and probably gives other colors when extremely fine particle size causes quantization of electron levels (quantum dots). (The usual demonstration being done with CdS or something like that, different precipitation conditions giving different UV fluorescence.) So what's next, uh, CsAu LEDs? (Is it direct bandgap..?) As impractical things go, that's definitely one of them... LOL
Thank you for the information! The CsAu LED is an awesome idea^^. I will take a look into that. If there is a overly complex and inefficient way to make some light with cesium, I'm in!
In a vessel that can handle vacuum, if you add cesium chloride and Carbon, then remove air with argon and seal vessel, with applied vacuum. (just like carbon to an oxide you get the metal) Heat up the vessel to high temperature to separate the Cesium metal from the alkyl halide. Transfer to florence flask/boiling flask with long stem, then seal it off as an ampule. I have done this reaction to obtain many elements from its oxide all the time. I am guessing it could work.
Do you mean reducing caesium chloride? I have done it several times(There is a video on my channel). But not using carbon. I used Lithium. But you definitely don't want any pressure in your system. It increases the boiling point of the cesium and is very dangerous if your apparatus explodes. Be careful and do not try it if you don't know exactly what you are doing. Cesium is no joke and you can get seriously hurt handling it. My videos are not meant as instructions! There is alot I don't talk about in the videos that you have to know to do it yourself safely!
@@AdvancedTinkering Yes, you are correct, Under vacuum anyway, it will pull off the alkyl halide while leaving the cesium metal. I was just thinking of a way that you can almost reflux it while taking off the alkyl halide to be left with the product you are after.
@@inoxio8716 I don‘t quite get you point you are trying to make - you are proposing an overly complex way of producing cesium - meanwhile there are two way more simple and way more optimized ways of doing that - one is the reduction of a halogenide with lithium - can be almost done with any metal as long as its boiling point is lower than lithium - and the second method is thermal decomposition of the alkaliazide - which will leave you with ultra pure (in this case) cesium and nitrogen. So i dont quite see what would be a reason to do the reaction you mentioned - its basicly just a overcomplication for the task
@AdvancedTinkering I don't know how to put this properly, but Cesium Auride sounds like a really cool compound to try to make memristors out of. If you imagine an electrochemical cell like a long glass tube half-filled with a stick of Cesium and half-filled with a stick of gold, the resistance would be low as both are metallic. This goes for AC and DC, but for DC it'll only stay low if the electrons are supplied at the Cesium end and extracted at the gold end. If done in reverse, the interface of cesium auride would have its cationic cesium migrate to the cathode, and the anionic auride migrate to the anode, increasing the interfacial salt wall. Go on like that for a while and your entire glass tube would be filled with cesium auride, not a stick of metallic cesium and metallic gold. keep going even longer, and the cesium cations might be reduced at the cathode again and the gold anions would be oxidized to metallic gold again, creating once again a tube with mostly metal inside with low resistivity. I hope this concept makes sense, I have no-where near the facilities to try anything like this, but it does sound like it has potential to become a breadboard-size memristor component, if electrochemically it works as i hope it does. I know I'm not a patron, but if i've interested you with this idea i'd love to hear if you'd be interested on working with it. I'm developing an amateur interest in analog signal processing and i'd love to have something to store data on without having to go from analog to a storage medium, even if its a winding of fiberglass to delay light or a rotating magnetic tape to deposit and later retrieve a signal. Kind regards from a Swamp German! 🇳🇱
Rather than going through the trouble of making chloroauric acid and precipitating gold with oxalic acid, could you use the gold that was precipitated from the cesium auride?
gold can be pulverized by first dissolving it in aqua regia and then precipitate with hydrazine/vitamin c/sodium metabisulfite/etc. it should fall out in a form of a fine powder or a gold sponge.
I love the stuff you are uploading! One small change i would really appreciate is a solid color backdrop though, just a bit of cardboard or some old table cloth could be enough. The tools in the background look nice but make the image a bit too busy. Looking forward to more content! :)
@@zyeborm Thank you for the feedback! I will try using the black background for some shots where it is nice to see for example a reaction. The tools will still be visible in many shots though.
Why do we use the Latin "auride" when we don't use the Latin name for the element gold? I feel like it would be a lot less confusing if the English name were cesium goldide.
I have a video showing clips of Cesium Auride being made that was posted 2 years ago. I didnt show the synthesis in great detail, didn't name it in the title and you can barely see the product, but still....
Die erste Beschreibung war bereits 1938: Wilhelm Biltz, Friedrich Weibke, Versuchen Hans-Joachim Ehrhorn, Roman Wedemeyer i inni. Über Wertigkeit und chemische Kompression von Metallen in Verbindung mit Gold. „Zeitschrift für anorganische und allgemeine Chemie”. 236 (1), s. 12-23, 1938.
...I would love to see the videos of when you create custom glass apparatus like the ones you used here, I have been planning some experiments where I need to create some custom glass reaction chambers into ampoules and could def use some tips and tricks before I begin my feeble attempt. 😅
From 1988 to 1995 i was tried to find a new way to get Na and K metals from salts likes NaCL, KCL, I believe there is a solvent who can Dissolve the salt, without reacting with the released metal.. and accepting the passage of electric current between electrodes without needing to melting the salts for this reason.. but until this days I was failed to find that solvent;)))
You know you should only handle your calibration weight with tweezers, right? Over time the oils from your hand will build up and throw off your calibration.
An ionic compound CsAu is formed. Such compounds are not metallic but more like salts, like CsCl. The fascinating thing here is that gold acts as the anion part like only non metals do normally. The Cs is so eager to release its electron somewhere that the gold catches it up to form Au- ions.
interesting channel, but I can't hear the comment for too long, as all "the" are spoken same instead [the] normally and [thi] in front of words with vocals
I just realized that you've made a compound not only between 2 _metals_ but also between both of the only 2 _golden metals_ on the periodic table!
not quite correct. Nickel when freshly plated has a slight gold sheen on it. Silver-gold if you like.
Europium is also gold
Pure Cesium is not golden
It actually is golden. It is a common myth, that pure cesium is silver.
@@F_Tim1961 this highlights the subjectivity of where we draw the line between golden and silver colored metal.
Another really fun set of metal anions are the bismuthides and stannides. These are even found in nature in the form of some rare minerals such froodite.
I only just today found your channel, I don't know why I've never seen it before as I normally keep up to date on anything Cesium related, you have in my opinion the best videos of Cesium on the internet
Thank you!
Extremely cool! It's too bad that you didn't have liquid ammonia. I wonder how it would look with gold foil. Will liquid cesium absorb greedily it like mercury does 🤔
Thanks! I will first try it with gold that has been precipitated out of solution and when I get my hands on some gold foil I will try that too. But since the reaction needs heat to occur, I don't think it will look as cool as mercury. Since it does not form an alloy.
Unlikely it will produce an effect like the amalgamation of gold as it wont even react with powdered gold at room temperatur. Also gold fail will have a poor surface area :/
Hey ChemicalForce, you should totally do a video on this!
@@AdvancedTinkering gold leaf is available pretty readily though it may be an expensive way to buy gold by weight. Still quick and available in small quantities. Watch out for sellers selling imitation gold leaf though, if it seems too good to be true price wise it may well be.
Was literally just thinking about this compound, its definitely gotta be my favorite chemical compound out there (not a chemist though). Because of the metallic nature of both ions, and the ability for alkali metals to produce solvated electrons with ammonia, I really wonder if you could get some rather wild electrical properties or even solvated electrons from this stuff.
Me knowing very little chemistry... Could this be used in a battery or fuel cell?
@@BloodBlight if so, it would be a VERY expensive one.
very unlikely to have any interesting electrical property, this compund is more closely related to a salt than an alloy
not alloy, but just a base😢
or eutectoid crystal？
News to me! Your channel will do very well sir, will take time and consistency. Quality content!
I had one of those "Light comes on in my head" moments just listening to this video's intro.
Omg, this is max cool!!!
Didnt know that 2 metals can form a compound without something else!
Another great gold compound I'd love to see is titanium-3-gold. Its supposedly incredibly hard and wear resistant, which is pretty neat. Gold chemistry in general is super cool and super underrated, those relativistic electrons and high electronegativity yield some pretty wild results!
i am postive that this is not a compund in a sense that a chemical reaction has a occured. What you are talking about - is an alloy. Completly different from what is shown here. Titanium has no way near the redox potential reuqired to reduce gold - not even the slightest chance. whst you mean is just mixing two metals together in a specific matter pretty mich the same deal like bronze is
although your comment intrigued me - but if i am wrong here, feel free to point it out. I love to learn about new chemistry
@@TheBaBySiTteR90 I do think it is an alloy, but it definitely has a specific ratio of the atoms and some quite different properties. Probably best to just call it an alloy though, my bad lol
@@StuffandThings_ "Intermetallic compound" has been used for these (by proper scientists) but they are just very neat alloys with nice ordered lattices.
allthough i mentioned it - i never saw it been done either - especially not in form of a video! thanks so much for uploading this. Also something i did not know about is HOW fast its reacting with air
Redder makes sense, depends on the material of course. But a lot of things are yellow when fine, orange-red-brown when coarser. Cu2O behaves very similarly; when produced from reduction of Cu(II) solution, it's typically a "brick red" product. When produced electrolytically (copper anode in NaCl electrolyte), it's yellow initially, deeping to a bright rusty-orange color over time.
Which, is CsAu a semiconductor too? -- Aha, yes, it is. So this is probably the case, and probably gives other colors when extremely fine particle size causes quantization of electron levels (quantum dots). (The usual demonstration being done with CdS or something like that, different precipitation conditions giving different UV fluorescence.)
So what's next, uh, CsAu LEDs? (Is it direct bandgap..?) As impractical things go, that's definitely one of them... LOL
Thank you for the information!
The CsAu LED is an awesome idea^^. I will take a look into that. If there is a overly complex and inefficient way to make some light with cesium, I'm in!
@@AdvancedTinkering worlds most expensive display tech ;-)
In a vessel that can handle vacuum, if you add cesium chloride and Carbon, then remove air with argon and seal vessel, with applied vacuum. (just like carbon to an oxide you get the metal) Heat up the vessel to high temperature to separate the Cesium metal from the alkyl halide. Transfer to florence flask/boiling flask with long stem, then seal it off as an ampule. I have done this reaction to obtain many elements from its oxide all the time. I am guessing it could work.
Do you mean reducing caesium chloride? I have done it several times(There is a video on my channel). But not using carbon. I used Lithium. But you definitely don't want any pressure in your system. It increases the boiling point of the cesium and is very dangerous if your apparatus explodes.
Be careful and do not try it if you don't know exactly what you are doing. Cesium is no joke and you can get seriously hurt handling it.
My videos are not meant as instructions! There is alot I don't talk about in the videos that you have to know to do it yourself safely!
@@AdvancedTinkering Yes, you are correct, Under vacuum anyway, it will pull off the alkyl halide while leaving the cesium metal. I was just thinking of a way that you can almost reflux it while taking off the alkyl halide to be left with the product you are after.
@@inoxio8716 I don‘t quite get you point you are trying to make - you are proposing an overly complex way of producing cesium - meanwhile there are two way more simple and way more optimized ways of doing that - one is the reduction of a halogenide with lithium - can be almost done with any metal as long as its boiling point is lower than lithium - and the second method is thermal decomposition of the alkaliazide - which will leave you with ultra pure (in this case) cesium and nitrogen.
So i dont quite see what would be a reason to do the reaction you mentioned - its basicly just a overcomplication for the task
@AdvancedTinkering I don't know how to put this properly, but Cesium Auride sounds like a really cool compound to try to make memristors out of. If you imagine an electrochemical cell like a long glass tube half-filled with a stick of Cesium and half-filled with a stick of gold, the resistance would be low as both are metallic. This goes for AC and DC, but for DC it'll only stay low if the electrons are supplied at the Cesium end and extracted at the gold end. If done in reverse, the interface of cesium auride would have its cationic cesium migrate to the cathode, and the anionic auride migrate to the anode, increasing the interfacial salt wall. Go on like that for a while and your entire glass tube would be filled with cesium auride, not a stick of metallic cesium and metallic gold. keep going even longer, and the cesium cations might be reduced at the cathode again and the gold anions would be oxidized to metallic gold again, creating once again a tube with mostly metal inside with low resistivity. I hope this concept makes sense, I have no-where near the facilities to try anything like this, but it does sound like it has potential to become a breadboard-size memristor component, if electrochemically it works as i hope it does. I know I'm not a patron, but if i've interested you with this idea i'd love to hear if you'd be interested on working with it. I'm developing an amateur interest in analog signal processing and i'd love to have something to store data on without having to go from analog to a storage medium, even if its a winding of fiberglass to delay light or a rotating magnetic tape to deposit and later retrieve a signal.
Kind regards from a Swamp German! 🇳🇱
Rather than going through the trouble of making chloroauric acid and precipitating gold with oxalic acid, could you use the gold that was precipitated from the cesium auride?
gold can be pulverized by first dissolving it in aqua regia and then precipitate with hydrazine/vitamin c/sodium metabisulfite/etc. it should fall out in a form of a fine powder or a gold sponge.
I love the stuff you are uploading! One small change i would really appreciate is a solid color backdrop though, just a bit of cardboard or some old table cloth could be enough. The tools in the background look nice but make the image a bit too busy.
Looking forward to more content! :)
Thank you! And thank you for the feedback! I will try to get a better background :)
@@AdvancedTinkering I don't mind it to be honest. I like the "texture" and I love seeing what tools other people use.
@@zyeborm Thank you for the feedback! I will try using the black background for some shots where it is nice to see for example a reaction. The tools will still be visible in many shots though.
@@AdvancedTinkering sounds like a good plan, also I know how long set dressing takes lol whatever is quick and good enough 😅
If I suggest an approach, I would do an evaporation of the gold into the cesium. Possibly during distillation.
Was the caesium auride an isotope?
Very cool stuff mr. tinker
Why do we use the Latin "auride" when we don't use the Latin name for the element gold? I feel like it would be a lot less confusing if the English name were cesium goldide.
I believe it is conventional to use the Latin name for anions.
I have a video showing clips of Cesium Auride being made that was posted 2 years ago. I didnt show the synthesis in great detail, didn't name it in the title and you can barely see the product, but still....
Is it possible to make an alloy of gold and cesium and if it is why haven’t I seen it be done before
Die erste Beschreibung war bereits 1938:
Wilhelm Biltz, Friedrich Weibke, Versuchen Hans-Joachim Ehrhorn, Roman Wedemeyer i inni. Über Wertigkeit und chemische Kompression von Metallen in Verbindung mit Gold. „Zeitschrift für anorganische und allgemeine Chemie”. 236 (1), s. 12-23, 1938.
...I would love to see the videos of when you create custom glass apparatus like the ones you used here, I have been planning some experiments where I need to create some custom glass reaction chambers into ampoules and could def use some tips and tricks before I begin my feeble attempt. 😅
From 1988 to 1995 i was tried to find a new way to get Na and K metals from salts likes NaCL, KCL, I believe there is a solvent who can Dissolve the salt, without reacting with the released metal.. and accepting the passage of electric current between electrodes without needing to melting the salts for this reason.. but until this days I was failed to find that solvent;)))
Propylene Carbonate. You need to add a little AlCl3 to increase the solubility of the chloride salt in it, tho.
Nice!
Thanks!
Cesium is my favorite element
What could this be used for in theory?
2:21 hurt my soul
Ich feier deine Videos !!
I would have tried to use leaf gold as a starter.
Bildung mit dem Lorenz
Super! Thank you very much!
Lithium auride?
Couldn't we use it to make like a supercharge magnet battery
OMG touching the 50g calibration weight WITH BARE HANDS
You know you should only handle your calibration weight with tweezers, right? Over time the oils from your hand will build up and throw off your calibration.
It has no metallic property?! 😮😮
An ionic compound CsAu is formed. Such compounds are not metallic but more like salts, like CsCl. The fascinating thing here is that gold acts as the anion part like only non metals do normally. The Cs is so eager to release its electron somewhere that the gold catches it up to form Au- ions.
cool, make purple gold next! Au/Al
Nilered should try this
Sehr geil.
Perfect
Du klingst wie GreatScott! 😂😂
Höre ich nicht zum ersten Mal :D
why post a video of an incomplete experiment
Cool
Everyone is spelling caesium incorrectly.
Caesii auridum
Well It's cesium alright....
😮
The sad thing is none of this will put men on the moon, but eventually the Americans will get around to it....
Wtf is this frankenstein monster
interesting channel, but I can't hear the comment for too long, as all "the" are spoken same instead [the] normally and [thi] in front of words with vocals
A German Boy
my brain cant help but cringe the whole time you're grinding the gold... 😬