Making Chromyl Chloride
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- Опубликовано: 5 сен 2024
- WARNING: Chromly chloride is extremely dangerous. Do not attempt to make this yourself. This video is for educational purposes. I made it so you don't have to!
In this video, we make some chromyl chloride from table salt, potassium dichromate and sulfuric acid.
This is a link that kind of shows how to add equations. It is honestly kind of crappy, but it gets the point across: chemlab.truman....
I used Doug's Lab video for reference: • Chromyl Chloride
I plan to do an FAQ video, so if you have any questions you'd like me to address in the video, leave them in the comments.
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Nile talks about lab safety: • Chemistry is dangerous.
i like how you show how to clean the glassware after the reaction, keep doing that
"I kind of have a soft spot for fuming liquids" -NileRed 2016
>starts with course salt
>puts effort into making it fine
*coarse
FlatBroke612 it was done because it's hard to find fine non-iodized salt, and it's not a big deal to make it fine anyway
Wow, literally looks like blood drops on your workspace at 12:14 ..!
Also, pretty cool how when you pour at 12:31 , the heavy gasses/vapors pour first, before the liquid. Looks really neat!
I love your videos, some of the best ones I've seen on youtube. You never ramble, or go down dead ends and have to back-track, and the camera work is really steady and professional. Could you film against a lighter background, though? Glassware seems to disappear against black.
+mark woodrow I could. ive been wanting to for a little bit now. I just happened to use a black backdrop. It isn't ideal though because dark solutions disappear too.
Excellent video. That candy apple color at the beginning of the reaction is beautiful! Also, thanks for detailing the cleanup - a lot of chemistry videos are missing that information, and it's nice to see the detail.
1:06 That little comment "I’m going to oxidize toluine to benzaldehyde” took over _seven years_ to become into fruition as a video. And it was worth it!
This compound is like liquid cancer. I like it
Meaning it's pretty harmless in itself but duplicates endlessly until it becomes a nuisance?
Nah son, bad example.
+origamigek You must be fun at parties.. I meant that its so cancerous
Lol, so predictable.
You couldn't have chosen a more original and hilarious comment.
+Janusz Januszowski It's not like liquid cancer. Liquid cancer is HMPA (hexamethylphosphoric acidtriamide).
It also isn't liquid death. That would be nickel tetracarbonyl.
Thus I suggest that this shit right here should be called liquid fubar.
Benzene, Agent Orange, Sulfur Mustard.
Man you need to team up with SlowMo guys and film some reactions at 100000 fps.
++++yes
Well if a FAQ is soon, I got several q's:
What are you by profession?
Where do you do all of these experiments?
Where did you get your equipment from and how much does it cost?
Last but not least, what is the most dangerous thing you have done in sake of chemistry, and what was the most boring one?
Cheers man, love your vids
Glass ware has gotten quite cheep, check ebay. Do the experiments in your basement if your lucky enough to have one, just be sure you have a fume hood!
Q:Can you Do any lab tour or Overall Info on you? How you got into chemistry and stuff like that
Make Calcium from Calcium Carbonate (egg shells).
I'd love to see you do some cellulose chemistry. Perhaps conversion into cellophane/rayon, or maybe even some polysaccharide to monosaccharide downconversion.
This aged well
FAQ: What's your background in chemistry and your professional occupation?
I think he has said previously that he has a degree in biochemistry
Can you refine elemental chromium from your Cr waste jug? That would be fun to watch.
true
+TheBookDoctor Another request for reducing elemental chromium. I'm absolutely loving this channel.
Thank you very much Jonh Black for giveing me the advice/information of the day
please, would you mind to tell me ( if you remember oviously) wich was the video you give an explanation on how to synth the ketone that TDC used in his video about "Reductive Amination Method)" ( the reason I don´t call it by his name is not I´ve forgotten it.......is the same reason I´d not use the word that describes " the way they acted when you tried buying dichromate) Thank´s for advance, you must be a great Chemist.
Anyway is weekend and I have all night to find it, if I do I will let you know it in a matter of hours.
Jhon Black , done!!! I´ve just found it via "Deductive Method".... I remembered you were happy to discover that TDC channel was much more than makeing meth...... so your explanation about the ketone should be in the comments on TDC channel....... but as I watched all his videos and don´t keep lists about nothing; where to start? ......... I can exclude of my search the comments of his moust viewed one in order to the argument you say that made you changeing what you considered what the channel was (and for the same reason another two videos related to the meth).........at this point, as could remmember the last I had reviewed was The Electrochemical conversion of Copper Sulfate to Sulfuric Acic useing Lead Dioxide Cothode ( my opinion about the experiment is like yours)...........the answer could only be there, and it was.
I am anxious the winter comes....your channel has one more suscrption minutes ago.
How does sulfuric acid act like a grease to form a seal? I feel like I'm missed something.
I’m curious too! Why does it have to be sulfuric acid almost every time?
Thanks for the awesome videos! As far as your next video goes, I'd say that the Denatonium benzoate and the pyridine from vitamin B3 would be the best to have next. Thanks again for your wonderful videos!
+The Chemster The next two will be luminol and benzaldehyde from chromyl chloride/toluene. After that will be denatonium benzoate :)
'I kind of have a soft spot for fuming liquids" is not a sentence I expected to hear today.
Plzzz make lithium aluminium hydride
For more information about hexavalent chromium, look up Pacific Gas and Electric, Hinkley, and Erin Brockovich.
the colour in the 3 neck flask just prior to heating is beautiful
Can you extract chromium metal from chromium waste?
I'd love to see the video where you concentrate and clean the drain cleaner H2S04. That's my vote.
towards the end when he said "Etard rxn" it clicked in my head
It's in my syllabus!!! yey I love this video
Really loved your video. If possible please upload a video of Sandmeyer's Rxn of Benzene Diazonium Salts, if feasible :)
Those are some gorgeous reds and oranges. Cool that there's another chrome oxidizer alternative to PCC
For the Q&A: What exactly do you study? Whst's your specification in chemistry?By the way, a great video again. Hope to see more like this and the most recent ones, you have really improved your quality!
I think you should have emphasized why you don't want potassium dichromate anywhere near your food....(Cr6+ and everything that comes with it)
Could you try to do Wurtz reaction? I am very interested how it will go, there are many theory about this reaction, but unfortunetly I did not find any experimental video. ☺
Hey, I have a few questions. 1) How did you get into chemistry? 2) What do you recommend to someone who wants to get into chemistry? 3) What is your day job?
Is it possible to concentrate hydrocloric acid collected on this reaction with salt? to make it concentrated
One suggestion for future use: try to capture the escaping gases with an ice-cooled water trap and preceding empty flask to prevent blowbacks from rushing in your main reaction flask.
Can you upload a video on making Sulfuric Acid? I really don't want to buy it because it is so expensive.
Agree
One of the best chem channel.
Hey! It may have been me who suggested the chromyl chloride, I did in a couple of videos. I knew I did for a reason, great video!
The Etard reaction comes to mind, where one can oxidize toluene to benzaldehyde in the presence of carbon disulfide. It cannot oxidize the toluene all the way to benzoic acid as it forms a complex with toluene that's kinda hard to oxidize.
Excellent job!
Looking forward for you to release the video of oxidizing toluene, 'cause my last approach with MnO2 failed completely (under atmospheric pressure) and I'd to switch to chromyl chloride too.
Nice. And yes, we love you! 😄
Your videos are good for my anxiety.
Remember me? the Étard guy :P
Great video as always.. Except for the fact that Chromyl chloride scares the hell out of me :D
This and basically every other hexavalent chromium compound just looks evil, pretty fitting I must say
Why do you use sulfuric acid to seal the tubes?
Amazing production quality videos
Could you make a Video about obtaining kno3 from potassium rich Food ?
I think I would be interesting to see the procedure from isolating k2co3 from e.g. dried banana peels and synthesize kno3 from it using hno3. I think this would really greatly demonstrate the occurence of basic chemicals in natural matterial. Great videos btw ! keep on going :D
The funniest shit about this was youtube was being all weird and this video had the thumbnail of a Try Guys video and I was like, "This seems like an awful idea".
I love going back to bby boi Nigel sometimes
I've had the pleasure of watching your videos. I would like you tell me how you clean all the gunk from your sophisticated glass ware apparatus?
Mostly washing with whatever solvent will dissolve the waste. If its particularly resistant, piranna solution or chromic acid can be used
why is sulfuric acid used to seal things?
you should have reacted them separately and added them both to addition funnels and put them on a three necked flask. then for the last one add a condenser attached to a three way adapter. it would be way more efficient
Hi, I love all of your videos and have watched all of them. I'm getting into organic chemistry right now and don't know where to start experiment-wise. I have all the glassware and am looking for a hot plate/stirrer atm, but i wanted to know how you got started with organic chemistry, and possibly give me a lead to a good hot plate/stirrer or heating mantle, or even the ones you use. Looking forward to a FAQ video! Could I make an suggestion for a video? I think a lot of us viewers are curious to see a tour of your lab. Thanks for all of your awesome videos!
+porkchopSMIN hello! I think the best way to start it to do things that interest you. I started with making smoke bombs and flash paper. I then moved onto other things as i got more experienced. I honestly am not sure where to get a good stirrer. I just got a good deal on ebay. I would like to do a lab tour, but I probably won't. I like keeping it a secret :p
+Nile Red thanks so much! I understand about the lab. Makes it fun!
I'd love to see electroless nickle on aluminium and how the chemicals react with each other. Great stuff as always
Great video!
But I have a question:
If I would use the stoichiometric of potassium chromate and sulfuric acid instead of potassium dichromate it wouldn't be a problem for the reaction, right? It's because I only have access to potassium chromate and don't want to synthesize the dichromate from it.
+kapamax64 I am really not sure if that would work. If it does, the stoichiometry would be pretty different and you would have to work everything out.
+Nile Red
I guess I'll just have to try that out then.
Thanks for your quick response and many greetings from Germany.
I'll let you know if it works out.
+Nile Red
Okay. I tried it out and it seems to work just fine with potassium chromate.
I have done it on a miniature scale (2g of chromate) and I received a few drops of a blood red liquid.
kapamax64 yeah it should work fine, just the stoich changes. I am glad you got good results. Be careful with it :)
Vanillin oxime!!! Please! I love your videos and please keep it up! :)
acetone is used as a co-solvent in the jones oxidation so not too surprising it doesnt react strongly with chromyl chloride imo
it shouldn't come as any surprise that acetone does not react as much as ethanol does with Cr2Cl2O2....oxidation states....still it would be interesting to see what it does with pure glacial acetic acid...
Really amazing video ! I'm big fan of your channel.
Then (I supposed a lot of people ask you that) I wanted to know you if you think you're going to do a video about multicomponent reactions ? Robinson's synthesis of Tropinone is quite an amazing example of that kind of reactions :))
+Nicolas Fincias Those look cool! I actually never heard of that synth before. I am not sure when I plan to do multicomponent stuff though.
Your link to adding chemical equations is gone 😭
Amazing video as always! I loved the detail on how you did to discard the chemical waste. Very environment friendly! How did you know how to discard it correctly? Usually I don't know how to do in some chemicals.. It would be wonderful to have a guidebook or something like that to help me xD do you know some? I'm looking forward to watch the reaction of the benzaldehyde!
+Patrícia Amado It's really hard to know, honestly. I just look up online how to deal with everything before I do it.
+Patrícia Amado A good habit when performing your own experiments is to be as certain of the efficacy of your synthesis as possible, for one, and to have put forth the necessary research. This way, you'll know how to deal with any mishaps, such as chemical spills, as well as be prepared to neutralize or dispose of toxic/caustic compounds. I've always found Chromium to be an incredibly interesting element, but I must refrain from using it until I fully know how to deal with it in a safe and environmentally friendly manner haha
Sponsored by Magic Bullet.
And that sulfuric acid looked a bit discolored, is it reused?
+Mr.chang cooler I mentioned that i got it contaminated accidentally :s
Nile Red Ah, I missed that. I went back to see if you did but I must have just missed it. Thanks ^.^
Mr.chang cooler Yeah, I mentioned it somewhere.
Nile Red Well, I look forward to see how you contaminated it :P
***** I did it, so ill post that video soon. I guess as chemical precursors to things? I dont know off the top of my head
Why do you use sulphuric acid to "grease" the joints? I'm guessing this is done because they need greased and the acid won't react in a negative way?
+Ben Tice Exactly. I was not sure how the grease would react
I vote for the Sulfuric Acid video!
re: the Vegas problems, try right-clicking on the event and selecting "disable resample"
I hope you were out of the room for most of this reaction. That's a good amount of HCl there.
Cool videos, man! In a couple other videos you have some significant Hg waste. How do you deal with disposing of your hazmat waste?
What happens to stuff like that chromium waste bucket when it gets disposed of
Why not use a trap anyway to reduce the HCl gas output, or use a sequence of traps daisy-chained together?
Have you ever made that paste which I think has iodine in it but when it dries out it becomes extremely volatile and explodes at the lightest touch.
It's red vapor and dark red, almost black liquid makes it look like bromine. What's the difference between the two?
I assume like with most metal waste, neutralizing the Ph, and evaporating water (if the dried products aren't likely to decompose in an interesting manner) and then handing the waste off to a commercial waste handling company is the easiest way to deal with things?
+Robert Szasz Honestly, at this point I am not 100% sure what I am going to do with it. Ill probably end up just having to pay a bunch of money to have it taken away. We do have services around here for that kind of stuff. The day that i need to call has not come yet, but it is close.
Plating out the metal is always an option, but beyond the novelty the value of your time is probably worth more than whatever fee the disposal company charges. (Leaving behind a superfund site is bad manners of course)
Robert Szasz It really depends. The cost could be quite high. I am not sure though. If I find a fast way to clean things up, ill do it. When the time comes, ill put the research into it.
+Nile Red I'd love to see you talk in general about the different wastes you have to deal with and different disposal options you've thought of. It might make a good video. One other thing I wonder about is when you finally decommission your lab, how to dispose of your wooden benchtop - are there any concerns there?
+Nile Red Is there a similar reaction with KMnO4 instead of K2Cr2O7 ? At least, Mn2O7 can be prepared similarly by addition of H2SO4 to KMnO4 or even forming the manganyl(VII) cation MnO3+ which is isoelectronic with CrO3. So what do you think ?
Why wouldn't you react the dichromate with the acid first, then add the NaCl to the flask?
I'm not very experienced in chemistry so just tell me if this wouldn't work, but why didn't you form the hydrochloric acid and chromium trioxide in two separate reactions and then combine them? I'm a huge fan by the way, I've seen almost all of your videos :)
Chromium trioxide is a solid and hydrochloric acid is a gas, so to effectively combine them you'd need to dissolve them in something like water to combine them. But like he said in the video, water stops the reaction from performing efficiently. Also making the chemicals would require a lengthier process which would also hurt the yield. Making everything in the reaction flask like this is a lot more efficient and also easier to deal with.
Chromyl chloride is good to make aldehydes since it stops the alcohols at aldehydes it does not oxidize aldehydes to acid . Am I right ? But it is a very costly method though
You should add this to your new skin lotion. I think it would go great with the acrolein, benzene, chloroform and phenol you've previously made. You'd call it "eau de cancer".
i love chemistry specially organic chemistry
Could you have added more salt to the reaction vessel to use up nearly all the Chromium?
10:59 Where are your gloves?
+jawmare At the glove store. Seriously though, it's because I was just opening it and not working with it. I literally did this just for the shot.
from paint thinner to almond flavor, the strange antics of carcinogenic oxidizer with carcinogenic solovents
I really appreciate your upload frequency. What do you do as your job?
How do you dispose your waste products after you have transferred them to the big bottle? :)
Anytime you volatilize Cr(VI) into a highly efficient corrosive carcinogen, I'm all in. As long as RUclips is as close as I get to the process.
Could you make a video about liquid chlorine? It boils at about the same temperature as ammonia (-34 C for chlorine, -33 C for ammonia), so it should be fairly easy to condense.
+Scott Kinney Yeah I just need to get more dry ice.
Why didn't you just add hydrochloric acid directly rather than making it indirectly from table salt and sulphuric acid? Is HCl of a concentration similar to the sulphuric acid difficult to source or store?
Hydrochloric acid is just HCl gas dissolved in water. You can't really get to much higher concentrations than 42%. The aqueous HCl that you can get, for example online, normally has a concentration of up to 36-38%. So you shouldn't use it in this case, since all the water would react with the chromyl chloride. I believe you would have to use HCl in its water free gas form to avoid this (Honestly I don't know if that would work, it is just a guess). Sulfuric acid doesn't have this problem because it is actually a liquid at room temperature. Concentrated (~98%) H2SO4 can easily be isolated and stored. In those high concentrations it is also very hygroscopic, which means that it has the ability to absorb any water created in the reactions.
Please correct me if I said anything wrong. I'm definitely no expert on this.
Can you please make a Vinager and baking soda Volcano demonstration.
I like your new camera!
Show us how to make glacial acetic acid, and acetic anhydride ;)
Can we just dip the joint in sulfuric acid?
Can you please make a video about making Chromium Trioxide along with some of it's chemistry and information ?
just add concentrated sulfuric acid to dichromate...
Why doesn't the chromyl chloride react with the water byproduct when being distilled?
+Luke Verlinsky It does to a certain extent. The concentrated sulfuric acid is good at sequestering the water though. If you use more dilute sulfuric acid (93% ish) the yield will be horrible
can you make a video of cleaning your glassware and a video of calcium metal from eggshells
Cant you just buy cromyl trioxide and HCl?
yes you can, but it's called chromium trioxide. All you do is mix this dark red powder with hydrochloric acid, then, carefully, add 98 percent sulfuric acid. The chromyl chloride will settle at the bottom over half an hour, and can be drained off if you do it in a separating funnel. No need for distillation at all.
_1)_ I look forward to donating to you(r channel) when my own finances allow.
_2)_ Great video again; thank you.
_3)_ For the FAQ: _"Why are you making these videos and uploading them to RUclips?"_
2:45 so satisfying
It's beautiful 🤤😭
Well, it would be deadly if that was Potassium Dichromate (the orange powder that he used)
Very nice
Why did you put your hand in the hydrochloric acid fumes at 10:53? Isn't that dangerous?
I always thought, that K2Cr2O7 as a strong oxydizer was able to oxydize HCl to Chlorine like KMnO4. When I had some Potassiumdichromate in my chemical experimental kit (now 40 years ago) I never tried.
+196Stefan2 that might be true. There is a bunch of yellow gas after. It might be the leftover HCl getting oxidized to chlorine ?
+Nile Red Thanks for your quick response! Later when I attented my professional education as a chemical laboratory assistent, I realised how limited I was with the equipment I had at home (and I got other interests). So I disposed off all my chemicals as a donation to the chemistry teacher of my vocational school and got rid off K2Cr2O7, amongst Pb- and Hg-salts (homemade), Benzene, Phenol etc. (all this nasty stuff).
Nowadays all this materials are no longer (legally) accessible for private persons due to it's cancerogenity/toxicity, so I can't prove if K2Cr2O7 can oxidize HCl.
196Stefan2 depending on where you live, you can buy potassium dichromate. It is used for some photography purposes
How do you dispose of your waste products from these experiments? Is there somewhere you take it?
Nice vid!
my question for you is , Why the GH4 over the A7s or the A7sII ? gotta love that low light man .. :P
+AlChemicalLife The answer is very simple. I wanted 4K and I didnt have 2.5k for Sony! If i had the money, it would have been the sony. Full frame too? Yes please.
My cons have sulfur, prevents SMB from working. Will this process work? Cons in AR warm, increments nitric and HCl till no reaction, filter rinse, back in pot hot to denox add HCl twice then water, stir in zinc filter precip rinse, dry then take precip put in hot HCl 24 hrs, filter rinse real good, then put precip into nitric/water hot 24 hrs filter and melt with oxy/acet torch. Not worried about silver loss, I am after the gold and pgm's. Zinc drops all metals, then HCl soak and Nitric soak to remove all junk metals, but gold and pgm's. Is this process correct?