Recreating the chemical traffic light reaction
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- Опубліковано 21 вер 2024
- In this video, I'll be recreating the popular demonstration called the Chemical Traffic Light Reaction.
Note: I made a mistake in the video. I said the carbonate solution would have a pH around 8-9, but it would actually be closer to 11-12. I was thinking of sodium bicarbonate when I said that.
References:
• Blue bottle demo: • The Blue Bottle Experi...
• Indigo Carmine prep: • Making the dye in jean...
• Belousov-Zhabotinsky: • Recreating one of the ...
• Briggs-Rauscher: • Recreating the Briggs-...
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Nile talks about lab safety: • Chemistry is dangerous.
Music in credits (Walker by SORRYSINES): / walker
Note: I made a mistake in the video. I said the carbonate solution would have a pH around 8-9, but it would actually be closer to 11-12. I was thinking of sodium bicarbonate when I said that!
NileRed All good m8, awesome vid nonetheless
Can i marry you ?
Red Rosey How dare you, I proposed first
@@dandanthedandan7558 hahahahaha .. ok .. sorry
@@polymerasiecondens6857
He uses a stir bar
It continues to surprise and upset me how hard it is to find information about these kinds of things. Science being the published and reproducible knowledge of humanity, you'd expect that a smart chemist with internet access would find it easy to get all the information they need to reproduce these reactions. Yet there's so much that isn't known, or isn't published, or isn't freely accessible. We've got a lot more work to do.
I think it has a lot to do with businesses trying to protect their trade secrets. They can't patent this stuff without making it public so they just don't publish it in hopes that others won't be able to reproduce it easily.
arXiv.org
This need also seems like a subject well suited to a FOSS project, you just need a reasonable outline of the purpose and structure along with some initial volunteers.
A few months ago I was brainstorming around the idea of creating a distributed FOSS substitute for youtube, the intent was robustness against both arbitrary censorship and business failure[or just restructuring]. I bring this up because it could be used for non-video content as well: papers, podcasts, forum discussions associated with the content.
(1)Distributed storage backend for cost diffusion, political maneuvering, and creator control, with standard backend API;
(2)middleware glue, eg databases, to aggregate the storage using the backend API, not unlike bittorrent in concept, and present a front end API. The purpose is to allow some provision for creators to work with advertisers and simplify the jobs of both backend and frontend developers;
(3)any variety of frontend search and presentation products or websites so end users can choose the features they like.
Overall its a bit like the structure of a linux machine: any variety of hardware, a kernel and shell tools, and choice of user interfaces. And like Linux users can take ready to eat off the shelf solutions or dig in and customize. (Easy to use and simple to understand for new users, with good documentation, is essential! Most folks are not admins or developers. Especially simple for those searching and browsing content.) Content control remains reasonably within the realm of the creator, as are hosting costs.
Comments/discussions should not be subjected to individual removal, rather individual comments could be flagged(like thumbs up or down) by the community and individual readers can then set their own frontends to display all or to hide comments rated below a certain rating level(customizable by the end user for both percentage and total votes). eg some flat earther puts out a video of rubbish "science", this is their right, but they should not be able to turn it into propaganda by selectively censoring the rebuttal comments. In another case a video may get a selection of wildly offensive off topic comments and the end reader may wish to block this content, not unlike using an adblocker. In another case mob mentality may take over and cause legitimate rebuttals to be negatively flagged in which case it is important that the end user have the option of viewing all comments. (like allowing popups or turning off the adblocker as desired) As they say sunshine is a good disinfectant.
True but what is the point...do it yourself like Nile red
Yes, it's true, especially for non-popular chemical reactions, almost all show the same chemical experiments.
My channel has many unique exotic chemical reactions with chemicals like: SnCl4, LiBH4, B10H14, CS2, NOClO4, etc. Welcome :D
@@ChemicalForce damn
my chemical trafficlight is my favorite band
*cries in g note*
@@irmagaluhrahayu4179 Cries in _A flat_
mmmmmmmmmmmm just what I was looking for
My Chemical Chromiance
lol idk
This killed my soul
Nice, That almost went turquoise. I do like that one better.
Keep up the amazing work! We love your stuff! Chris from HTME!
@Daniel Kintigh Some guy asked us to make a wood train, with a coal combustion engine, and then make it invisible... sounds dumb but I'm in.... Chris HTME
Not your idea Daniel... Invisible wood train...
@@htme Graceful recovery, 8.7 / 10.
Can confirm the wooden train story.
@@htme If you ignore the invisibility, I can confirm that I might be the one who suggested that. But in hindsight, I guess HTME could unlock the wheel tech and bearings tech, you could make a wooden trike with front wheels steering, the back wheel being double the thickness of an individual front wheel, using treadles or pedals for rotating the back wheel of the bike, and make it look somewhat like a car by adding a wooden skeleton and cover it with a shell made out of waxed textiles, waxed paper, or textile/paper hardened and waterproofed by resin. Alternatively, a gearbox could also be added, for achieving higher speeds with less effort. It can have no windows, or use modern transparent flexible plastic boards. A minimal amount of parts would require metals. It is entirely possible to make rope-spring suspension, though the amount of work might be quite high and it would have to be protected from moisture.
Because they already had roads back in early-medieval times (although not as good as the current ones), and it would likely be easier to just drive wherever you want without counting on a horse/donkey and having to feed it, than to build the needed infrastructure for roads (namely wooden/stone/soilcrete/dirtcrete rails, stations and some system for changing rails).
I'm too stupid to fully comprehend this but I watch it for fun.
You are pretty stupid✔
Lol chill it isnt that difficult. It has nothing to do with intelligence.
All the more reason to set up a small home lab and learn.
You are not stupid! Only you should keep working it a little bit more
@@thoth111 thats not what i said
I do this live in my Science Shows (at schools, academies, libraries, museums, etc) many dozens of times a year. It’s a touchy reaction but as long as the ratios are right and the water temp is just “warm”, it’s pretty foolproof. I actually use ordinary tap water (Hill Country TX hard water) and it works well. I’ve pushed the reaction to its comfortable limits, mostly out of laziness.
My reactions are: 400 ml of warm (~100°F) water (I eyeball it), 10.5-11g (dry weight) Sodium Hydroxide, and 2 tsps finely powdered corn sugar (brewing supply). I mix the water, base and sugar in a flat bottom round flask by shaking and venting. Then add the Indigo Carmine. As long as the water temp is just warm when you start, the reaction is fast enough for live stage demos. And a little traffic humor doesn’t hurt.
I’ve even performed this reaction on live TV (an NBC affiliate morning show), although the green screen equipment inadvertently chroma-keyed out my “green” and replaced it with an eyeball hurting white, which I didn’t know until after the show had aired, Lol! Love your channel!
TV demo:
www.kcentv.com/mobile/video/life/daniel-g-benes/500-8192922
cool
Does the reaction stop after a while or does it go on forever?
Great presentation!
@@CalciumEaterSupreme Okay, I know I’m a year late, but in case you see this and still are curious… The reaction can be continued several times for an hour or so. But the solution eventually stops reacting and pretty much stays yellow.
@@DanielGBenesScienceShows thank you!
I think it'd be really interesting to see what colour changes happen when you bubble oxygen through either of these solutions
I was thinking that same thing.
Well for the first solution at least you can actually watch that on the Traffic Lights video of Periodic Videos. Some pretty cool color changes there as well.
A good example of a classic school chemistry trick. Looks lovely and younger audience is always impressed. It also shows how beautiful chemistry is!
Yeah, I definitely like the Carbonate solution version better than the NaOH. The better range of colors is much more appealing, despite it not having as prominent shifts in color. Channels like yours with experiments like these reinforce my choice to be a Chem major, and I’m excited to discover the world of reactions and applications out there. Thanks for the inspiration!
This is phenomenal as always. I really hope that at some point in your life you become a chemistry teacher, I really think you’d be able to make a “boring” subject interesting for regular people (i.e. students) and that you’d make people feel actually engaged and fascinated by science while they’re learning. Please keep these up, you’re doing incredible work.
He is I think lol
My science teacher did this in class and said that if anyone could answer why it did that, we would get a higher grade.
Thanks for letting me get a higher grade!
Cool story bro
Missed school today, i guess this will take place of my ap chem class for today
psyneur ap chem gang
@@theweredragon9887 true lmfao
Took the kids to a chemistry "magic" show on the local uni campus this weekend, and this was the first demo they did--one of the team trying to get 8 beakers all green at once. In haste, a beaker broke from being slammed down too quick/hard.
Alas, they didn't ever get into how they did this, so nice to see this so soon after!
Completely agree that your version is visually more interesting! I really like when you add those little extras in to show some out of the box thinking.
Chemistry was my first great love, ever since my parent gave me a chemistry set at age 12 and I found some home experimenting books from the 1950s in the public library and a friendly pharmacist willing to help out and sell me modest amounts of chemicals (including the fun stuff, oxidisers and dilute acids, the only thing he refused to sell me was concentrated H2SO4) I still feel like that same curious kid watching vids like this. Love what you do, keep it up.
This takes me back to my undergrad chemistry honours thesis! I remember figuring out the half cell potential of one of the free radical reactions, mostly by accident. :o)
That was so neat; definitely loved the second color changes more as well. The subtle gradient was awesome
Her: I don't give off mixed signals!
Also her:
Who is her?
@@HeTookThem a girlfriend or something its a joke don't think of this too much
@@Mark-Wilson Oh. Mk, Thanks for answering. It's been 9 months and didn't know who is "Her" Until I realized it's a joke
NileRed: *does science stufff*
me: he a wizurd :000
Anything sufficiently advanced is indistinguishable from magic. The person controlling the magic is a magician. Therefore NileRed is a magician.
Damn, watched this dude for like five years, and now that I am a second year pharma student revisiting his videos and actually understanding the content is so rewarding
This reminds me of a “trick” that a guy did at my elementary school. It was very similar to this but it would turn from clearish yellow to blue but back and forth. To this day it is still the most amazing thing I’ve seen.
Are you talking about the Briggs-Rauscher reaction? It's discussed in another one of his videos ua-cam.com/video/SCoLMfplVWs/v-deo.html
Nile you are my favorite youtuber of all time never stop doing what you do
:)
@@callitseeit625 hm?
nice acclaim
What is your username on rotmg
@@NileRed :)
Nile, i've been watching you since your fuming nitric acid video 4 years ago and i gotta say, your video just get better and better, you never put out bad content, thanks for all the work you do to keep us entertained and for teaching us so so many cool new things, have a wonderful christmas bro
The fact that you show in the bottom right corner what speed you have sped up the video in just shows how much dedication you have to make these videos such a high quality. Great job, keep it up.
My class 11 and 12 india chemistry, finally has a use: understanding nile red
I love this reaction and I demonstrate it to my students on a regular basis. They love it and think it's like magic! It's similar to the Blue Bottle experiment using methylene blue but better. Thanks for posting.
6:03 you should have said supports my hypothesis, not theory. I say that because a lot of people get confused between a hypothesis and a theory; since you are do a great job of explaining all the things you do and you also get a lot of views, people hearing you use the words correctly will actually make an impact. I really like your videos and now that I am halfway through organic chem at my university, I am understanding things even more which is cool!
yesh
Nilered I do this experiment with my children in a regular basis. They love it and it has sparked their interest in chemistry!!!
Your sodium carbonate version was so much cooler! Nice work, as usual
Wow I was just binge-watching your older vids. New subscriber here! Keep up the awesome work! 👍
His videos are super bingeable, and also are great to fall asleep to.
Finally, I've been waiting for the next video. Great content, keep it up.
Every day i look to see if you have another video and today i was happily suprised! thank for making the best chem vids out there!
Really underrated video!
If you're living in the EU, look out for food coloring with "E132" or indigotine, which is indigo carmine. It's easier and cheaper to buy if you're gonna use it only for this reaction. There is a former East German brand called Wusitta whose blue food color is simply a 1% indigo carmine solution in water. 20ml of it is more than enough for this reaction and is like €1.
The molecular structure you show for the yellow form has greater conjugation than the blue form. This means that the delocalized electrons in the highest occupied orbitals for the yellow form are in larger 'boxes' than in the blue form. The energy spacings of the orbitals in the larger boxes are smaller than the energy spacing of the orbitals in the smaller boxes. So the electron transitions that give rise to the yellow form (larger boxes) should correspond to wavelengths that are longer than the transitions in the blue form. Yellow light has a longer wavelength than blue light so this supports your structure for the yellow form.
Would you talk about the reaction that happens when you mix Sodium Bisulfate with Hydrogen Peroxide? I use this reaction all the time making jewelry but I've never understood how it works. I use hot Sodium Bisulfate to remove oxides from metals after heating, but it has a bad habit of copper-plating brass, and any other metal if steel is introduced to the solution. When that happens, a 50/50 mix of Sodium Bisulfate and Hydrogen Peroxide is used in a fume hood and it strips the copper while leaving the metal underneath looking pristine. This is common knowledge among all of the jewelers I know, but none of us quite get how it works.
You could totally make a rad version that's like a giant decorative fountain, and fine-tune it so that when it reaches the bottom it is oxygenated, and then it returns to a reservoir/pond where it gets a chance to de-oxygenate and pump back up to the top, then it spurts back out and while trickling down it oxygenates and changes color by the time it reaches the bottom. If it were some kind of white spire it would make the colors much more visible. I'm not sure if you could fine-tune it to work in the open air, and you'd have to replace evaporated moisture regularly, but it might be a really neat thing to behold.
If you put a bubble stone in the flask and use it to introduce more oxygen once the reactions have subsided, will they start again? Also, what would happen if you used pure oxygen?
I love how the blue dye becomes every color but blue
I'm so disappointed by the fact that this reaction doesn't go forever... Would have loved to make a bottle into a key chain.
The carbonate version of the reaction is beautiful!
This reaction is similar to the one used in blinker fluid!
1:53 Thought my screen had dirt on it, haha.
Duuuuude, thank you! I am a PhD student and am trying to recruit highschool students to work in our lab. Felt like this would be the perfect demo and it worked!
Love your videos!
P.S. if you have any questions about photoredox chemistry, hit me up!
I have to agree. The second version of the expiriment. Visually was more stunning. Even if it was a bit slower.
You read my thoughts, I wanted to see it go back to blue, and in the end that is exactly what you did so thanks :D
I love your videos @NileRed, they are so informative and interesting. You should make one completely about chemical elements.
If I remember right this is a popular demonstration in some Faraday lectures. very fun, I love these color changing reactions. Another fun one is a special salt-alcohol mix that starts burning blue then switches to red.
underrated video
Me: I pay you 100$ for a traffic light.
Nilered: Sure.
At Last! a new NileRed video. Keep them coming.
Just a small thing: The yellow structure at 5:00 is very hard to see. I suggest a more contrasting background if you use this visualization again
I have an idea for u. U must try a reaction cycle where u start with a compound and after some conversion u back to that starting material. For example- starting with benzene thn nitrobenzene, aniline, benzenediazonium chloride and finally benzene. It will be fun to watch how much the starting material u can recover. Big fan from INDIA. Keep the good work.
who is "U"?
@@bryceforsyth8521 I am a student from india who love organic chemistry. May i ask who r u???
I'd love to try the Briggs-Rauscher or the Belousov-Zhabotinsky, but the chemicals aren't quite so easy to obtain or work with. Whereas, here, we've got some nice straightforward stuff I can get from E. Bay and the hardware shop. Not as "magical" but within my grasp... so thanks for this.
“It wouldn’t of been the end of the world”
Are you sure about that?
Lol
You have the most interesting videos! I could watch them for hours!
I love how when u open to video, it is just like staring at the sun
So, how far off is this from a home demo with cane sugar, baking soda, and cloth dye? You demonstrated that observable color changes happen below the ph sensitivity threshold, so the question is now how low it can go and how impure the reagents can be.
I just failed my ochem final but your videos always manage to cheer me up.....Chem may be hard but it's super interesting
Yaaaawww! Another video from NileRed!
Me: "Oh yeah that's what doctor Nbrio from Crash bandicoot was probably doing"
One of my favourite reactions. The reaction with sodium carbonate is pretty nice!
Your version is much better than the original! Bravo!!
Reaction explained: “oxygen touches stuff and it freaks out” - my chemistry professor
This channel makes it all worth it man
Couldn't have picked a better title
i don’t understand anything in your videos but they’re still entertaining to watch
هذا الفديو اللي استعملوه الطالبات بمعرض المدرسة
والصحافة الغبية بالعراق عبالهم الطالبات اخترعن اختراع عظيم
Maybe also show putting some of the solution in a sealed container with nitrogen to demonstrate the effect of the lack of oxygen on the reaction.
Great work, love watching your videos!
I went to a real lab to do this experiment for my science fair and I got an honorable mention
The irony of me watching this while procrastinating my organic chemistry assignment
NileRed is a dedicated customer of drain cleaner.
Oh btw congratulations for making the very first rainbow water
What is that pill stirring thing and how does it work??? Is it motorized or is it heat powered? I don’t know much about chemistry but it’s still super cool
Man.... You are living my dream.... I freaking LOVE chemistry! I'm so jealous... 😰
The sodium carbonate version is great! I would have thought less oxygen would dissolve at the higher temperature, which might have reduced the effect. but apparently not!
you made it on the front page of reddit and also on daily dose of internet
The second reaction was much cooler. I'd like to try it out.
Wwwww wait; This is already 2 years old?!
Yooooo lets go my chem teacher is letting me do this.
The "Chemical Traffic Light Reaction" never gets old. I love it.
When you realise that earlier realised videos literally give no extra benefit because you’re only watching a video ahead… LOL
You rock bro,thanks for the interesting videos.Love this channel.
I found this to be the better version. I used more glucose and it lasted very few runs until being yellow forever, don't really understand well why. But thanks
Great video as always 👍
Ps: I found one of your deleted vids about Meth. I was really suprised. But why did you take it down? (Please don't mind my grammar. I'm german)
I don't know if it's strictly illegal to teach people how to make meth, but I imagine youtube frowns on anything to do with the subject.
@@AtlasReburdened No it is perfectly legal to explain this as long as you don't make it. In his video he didn't produce any meth but he only covered the different methods. Yeah it could be because of youtube even if that specific video didn't violate any rules/terms
Yeah, youtube's real standards are quite a bit more mercurial and temper dependent than their terms of service imply. Maybe those videos being on the channel affected the viability of monitization on his other videos.
@@AtlasReburdened Just look at some other youtubers who cover chemistry in their vids. 2 years ago they all made videos about more dangerous stuff without youtube f*cking around. Now all those vids got taken down even if they were perfectly fine.
Your grammar is actually really good! Keep practicing!
Indigo Carmine, the Carmine brother who survived the Locust and Lambent assault.
You must pay a fortune in white paper background costs.
this would be cool if you put it in a small glass thing and wore it as like a necklace
We share the same brain cells may be ! 😂
Ever played the Smurf Village potion minigame. This explains everything
Perfect...
I figured out that NileRed's Pfp is BELOUSOV ZHABOTINSKY reaction
I went to my brothers open day for his college and I remember them doing this experiment in the science labs
I’m a teen in 8th grade, and I tried this experiment. It works! Thanks :)
I love you, NileRed! 🍄
Hi! Rhenium is an interesting element. Will you have the opportunity to make a video about him? Thank you for your informative videos)
Oh shit a nile red video? Been a minute.
I wonder how many visual reactions you could set up in one video? Also that second one was way cooler but having them side by side would be awesome too
This must be the headlight fluid the guys at the auto parts store had no idea existed
Thumbnail : colors
Me : “ all the Heathers of westerburg “