Making a silver mirror
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- Опубліковано 1 гру 2016
- Today we will be doing a demonstration of the Tollen's test and use it to make a silver mirror.
The Tollen's test is mainly used to identify aldehyde groups (forms a silver mirror) and it was historically used a lot. It was slowly replaced with more accurate and better techniques. However, it is still very useful for hobbyist who can't afford big expensive machines. The silver mirror is kind of an off-shoot of the Tollen test, where all we are after is the mirror that forms. We use glucose because it is a cheap and easy aldehyde source.
In the future, I might make a video where I identify an uknown chemical using a series of classic techniques.
My video on making silver nitrate: studio.ua-cam.com/users/videoEruz...
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Nile talks about lab safety: • Chemistry is dangerous. - Наука та технологія
That phrasing ''With a little bit of acid the beautifull mirror dies'' so poetic
So poetic your pathetic.
@@sirmeliodas608 you're*
r/i'm14andthisisdeep
@@Gamma_Radiation r/subredditsdonthaveapostrophes
R/wash
In Alevels chemistry laboratory class, we made Tollen's reagent and produced the silver mirror. The teacher allowed us to take the test tube home so I took the one my group made. I still have it with me.
We did the same but unfortunately I didn't get one because the others from our group took our one home, still sad about that.
Wow then what happend?
@@AliceMeder ;(
My teacher told us to bring in a bottle that could close, because we were told to shake our reactions. I used a green wine bottle and it's gorgeous. We all took ours home as souvenirs. Same with our crystals.
same i just did this the other week!!!!!
Those silver-coated flasks would make excellent Christmas ornaments!
As far as I know thats exactly how those ornaments are made
@@sushmaverma3562 Whats your problem?
@@Landogarner83
That's right. My wife and i have some silver glass bell ornaments hat are about 125 years old at this point. They were made like this. They are still as bright as when made.
@@Landogarner83
If you look in old glassblowing books, you will see this is exactly how it was done to make Christmas ornaments.
We had a task in a class test in school that was like "It's Christmas and all you realize you don't have any ornaments for your tree, so you decide to make some yourself" with this experiment. 😂 So, yeah.
You can use the store bought stuff (and I have) but it wont work for the actual test since it is usually contaminated with soap.
+Cody'sLab you are taking about the ammonia? I had no idea don't were soapy.
NileRed well as you two probably know you don't want to mix a comet and Clorox 4 the fact that ammonia and chlorine make mustard gas essentially
borttor MCPE You're wrong sir. There isn't any sulfur in either of those things.
Fred Singateh mustard gas is a combination of ammonia and chlorine sulfur might be added to it to make it fume more. those two when mixed evaporate the fumes of the solution are insanely toxic
borttor MCPE according to the big boy IUPAC, Mixing ammonia NH3 with bleach NaClO will create a small amount of chlorine gas Cl2 as well as several other biproducts such as N2 and more toxic products like hydrazine, chloromine, dichloromine and nitrogen trichloride. But not mustard gas. Because there is no nitrogen contained in mustard gas according to IUPAC. it is still very dangerous, but nothing but a myth you hear when people say it will create mustard gas. I would like to know where u heard tho so please respond.
Making a mirror just so we can see you and your lab in it. Does your vanity know no bounds?
haha you got me. That was the entire idea behind this video. Busted
The Silver Mirror and Tollen's Test,or "Look at my reflection as I move this Round-Bottom Flask".
+HCN 27.0253g/mol that is definitely the more accurate title
When's the real face reveal tho?
+zabotheother That Bromine video.
I’m gonna be completely honest here; I’m a freshman. I don’t even *take* chemistry yet and 99% of the time when I watch these videos I am completely lost when it comes to chemical compositions and all that. I still watch these, though, all the way to the end, because there’s something oddly fascinating about watching all this be made even though I totally don’t understand why or how it works (I’m not saying you explain bad btw, I’m sure if I really paid attention to it I could understand just fine, I’m just very dumb and very lazy.)
Same, even down to the freshman part. You should be a sophomore by now. If I'm correct then have fun!
Same... matter and it’s properties just fascinates me...
I too, am dumb and lazy.
Im not in college ,I am a welder . I have to watch a video sometimes a dozen times and work on and off for a week or 2 to half way to understand it .; But I will say Nile red is the easiest to understand and research
This was a year ago, so if you haven't taken chemistry yet, you'll learn nearly all of this stuff, them come back and you'll have a pretty good understanding of it
I've always been moderately interested in Chemistry but you make it so easy to take in. I wish I had you as my Chem teacher in High School.
It's awesome that you will never run out of ideas in chemistry :D Your videos are lovely to watch!
Thanks! Every time i think i am running out of ideas, i get 1000 more
@@NileRed agreed
@@NileRed Haha ur jus' showing off noww...😂
NO! YOU MONSTER! THE MIRROR! IT WAS SO PRETTY ):
I destroy pretty things
if you know what I mean
wink wonk
@@NileRed that was strangely erotic
@@cottontail5109 That is very serial killer-ish.
pause at 7:21, set 4k, Crop that, flip it , enhance, ENHANCE ! ENHANCE !
Give me a hard copy right there
Haven't you really saw him !?
@@LLL_14_85 this was 4 years ago~
6:41 my man goin ham shaking that bottle, holy hell.
i love how now that i've taken a chemistry course, i can actually understand most of what he's saying.
I forgot everything
Fun Fact: Apparently, this is why vampires couldn’t see themselves in mirrors because silver repels them
Vampires aren't real
That's what you think. 🧛♂️
@@Somethin_Slix But the stories behind them somewhat are.
Must be something to do with alchemy and the properties of silver
This may also be the reason vampires don't show up in photographs, since the light-sensitive chemicals in photographic film are silver halides.
This is how the first Christmas baubles where made.
I did this project in high school chemistry. I used a green wine bottle and it made a gorgeous green-gold mirror. After I saw how spectacular it was, I really wanted to try it on a red bottle. I saw someone who used blue, and it was pretty cool, but red... RED!
I remember doing silver mirror experiments in school, how nostalgic.
I wish my school had done it
Throwback to when we would do this for Christmas ornaments with kids in my Organic Chemistry class
So, if a hungover cigarette smoker gets a bloody nose into Tollen's reagent will it create a silver mirror due to acetaldehyde in the blood? To my understanding smokers have higher acetaldehyde levels in the blood and the breakdown of alcohol in the human body creates acetaldehyde.
(+discorobotification) Thank you for giving me a life goal. I need to try this now.
he would fucking bleed mirrors
@@Bitzy Imagine peeing shiny liquid
I'm guessing the effect of all the other aldehydes in the blood (glucose, amino acid residues) would be much larger than the effect of the acetaldehyde. So if it would work it would probably work with anyone's blood. But I suspect the insoluble cellular material would interfere with the aggregation of the silver into a mirror.
God,it's so nostalgic.Silver mirror test and preparing dyes was one of my fav experiments,I miss school.
Remember that silver is very light sensitive. Try keeping your solution in the dark as much as possible.
Nile: *makes silver nitrate*
Me: "Great, now you can shoot werewolves."
VERY COOL! You should leave the silver in, coat it with something to preserve it, and sell the NileRed beakers a vases!
I remember coating the insides of little test tubes this way in high school! It was part of our Christmas lab series. Super fun lab, it’s fun to see it again :-) (and in a lot more depth)
Thank you so much for your time and effort. This is really amazing stuff
I definitely support the deduce the chemical/classic qualitative analysis you alluded to in the description.
I remember doing this in highschool for chemistry. One of the most interesting reactions imo especially when i was new to chemistry
Again i find myself back on your channel because I need to know how to do this. How filled with glee I am that I get to see it on your 4K 60fps camera with your excellent explanations.
Im making parabolic mirrors and metal fresnel lenses for solar projects
Thanks. I appreciate the demo at the end of the video too! Liked
Thumbs up for this classical technique !
2:16 maybe there are chloride contaminations in your water or on your glassware
so the couldiness is caused by AgCl dropping out of solution
That is very possible! I forgot to mention that
Whats the purpose of it? Anti cancer?
I got loads of DBA left over from benzaldehyde tests, Ill wait for Nile's video for dibenzoylmethane!
This guy works so hard but still his Subscribers are 1.65 mil. He deserves much more.
He's at 3.47 now ❤️🥀
*NileRed the Science Guy !*
I would LOVE a series where you sherlock holmes some chemicals.
I like the idea of identifying an unknown with several classic techniques!!!! Please do that
*Don’t know anything about chemistry but this is still one of my fav channels*
The fact these videos don’t make me mindless but there’s also the most interesting thing to watch in a time where I can’t leave my room because of covid makes me both sad and happy
Dang it Nile…I watch these videos to fall asleep… How am I supposed to do that when it’s so interesting!
I did this a few weeks ago!!! The silver mirror was so beautiful.
nice!
Ah, i remember this on organic chemistry class :D Beautiful experiment.
I did this in AP Chem back in High School. We lined the insides of old glass coke bottles.We made these right before Christmas Break, my chemistry teacher was the best.
You're definitely showing the value of setting up the apparatus before preparing the reagent in this video, thanks!
2 Videos in a Month?!Am I in Heaven?!
I posted 4 last month! I am going to be posting at least one a week
+NileRed I did not notice the three videos about Acetaminophen/Paracetamol.
its okay :)
NileRed
Hi
Is it possible to recrystallise sodium hydroxide in air or would it just react with the co2 to form sodium carbonate?
Thanks
Probably react. Also its super hygroscopic, so it would never dry. It would probably liquify
When NileRed videos are unknowingly helpful in my chemistry studies😌 Btw keep it up...
This sorta stuff is why I love science
Holy cow it was so satisfying to see that mirror get dissolved.
Now to Google Silver Nitride explosions
That joke was funny. Man of few words still gave me a chuckle
In middle school, we made Christmas tree decorations with test tubes. We heated them up with a burner, it had a cork and a strae in it so we could blow it in the shape we liked and then fill them with that silver stuff.
We did this experiment in AP Chem in high school. It was super cool to turn test tubes into mirrors
2:10 - The first time I knew something in a NileRed video without it being explained to me gets prefaced with "This sounds a little bit complicated..."
This!! This wowed me when our teacher showed it to us!! I think its one of the best methods to get children to like chemistry, especially organic! This and luminol :D
I like how he’s more casual in his old videos.
All jokes aside, NileRed is SHREDDED. Can u make a video on ur workout routine and diet pleaseeee?
shredded ? ever heard about Zyzz ?
He makes his own gear...
Are there any other mirror reactions that plate out different metals, like tin, copper, aluminium, iron, etc? It would be cool to see any that exist. Great video, cheers.
that turned out amazing
Best experiment yet
I have a chemistry presentation on redox reactions. I will do the silver mirror to demonstrate an exemple of redox reaction and your video helped me a lot to write the equations and to determine a protocol, thank you. I hope I will be allowed to bring the silver flask home !
did it go well?
wonderful video!
Oh the nostalgia I wish I was back in high school chemistry 😢
Oh by the way your SO CLOSE TO 100k SUBS NILE!!!!!!
I know! I am very excited :)
NileRed Aren't we all!!!! Keep up the stunning content ☺️
It's been 3 years now heh, how's over 1mil subs?
@@kore2149 how about 2million? :))
Hehe, how about 6M ;)
I did the tollens reaction in A level chemistry. One of my favourite experiments
I've always been confused about the demonstrations of the silver mirror test I've seen. The only time I did it in IB Chem, the sheen formed instantaneously upon the addition of the aldehyde we were testing. Does the speed & strength depend on the aldehyde in question, or was it just because we were told to control the temperature of the solution within a .1 Celsius range?
Another affordable method of identifying aldehydes is the Schiff reagent. I worked with this reagent quite a bit and it works very well.
New game: Every time he says Tollen's reagent, take a shot.
Mudkip909 so pretty much, by the end of the video, we all are going to be puking our guts out. XD
hay quá Phúc ơi, nổi cả da gà luôn nè, thấm vào từng mạch máu
You're so close to 100k subs! Congrats!
+TheChemistryShack thanks!
TheChemistryShack 100’000’0
I loved thos video.
I studied this test when I was in high school also did this in chemistry laboratory but this is so cool
Formic acid isn't really a false positive since it's both an acid and an aldehyde!
That is true, but it is kind of a pseudo aldehyde. It is technically classified as a carboxylic acid
Wow we just studied this in chemistry class in chapter Carbonyl Compounds about Tollens test with aldehydes and ketones.
FINALLY! AN EXPLANATION FOR MOLS!
+Mary Udomah I should do a video in general on mols and molarity. It is actually a pretty interesting topic on its own
I mean, I was an idiot and took only physics in high school, so that would be awesome for people like me XD
I love how he just admits the silver nitrate wasn't as good as he thought even though he synthesized it himself
In our school in organic chemistry we make Tollen's reagens a little bit different. In a test tube we add about 1 mL of AgNO3(aq) then we add a drop of NaOH(aq) to for a dark brown precipitate and then we add as much aqueous ammonia as needed to dissolve previously formed precipitate.
"I wanted to keep my flask"
also nile "I had to break all my beakers"
Would it be possible to slow down the rate of aldehyde addition OR to reverse the order of addition such that one obtains crystals of silver instead? Just curious!
Today our teacher showed us this video and I was like.. Isn't this nile red? Lol
AWESOME! ILL MAKE ONE FOR MYSELF!!!
When attempting this process, it's important not to accidentally make a silver colloid.
Colloidal silver is not dangerous per se but its presence can be sensed by nearby flocks of suburban moms, who will attempt to take it to give to their young.
Your videos are absolutely educational and fun, I have to watch at least one a day.
And you're the perfect person to ask this. Do you get haloalkane aldehydes? For example 2,3-dichloro-3-flourobutanal?
I’ve been watching your vids for months and forgot I hadn’t subbed
that's great way to make Dewar flask thank you so much
Hi ,Nile I want to prevent the oxidation of silver to make a first sight mirror . So can you tell me if there is cheaper and effective way to do so.
Thanks
Since subbing to this channel I've been getting Mass Spectrometer adverts. Google must think I do this in my spare time 😂
Nile back then: "slap on a sticker" *applies delicately*
Nile now: "carefully" *ＥＸＴＲＥＭＥ ＶＩＯＬＥＮＣＥ*
Caffeine total synthesis, I've been waiting for ever.
Please
+Humberto Castro haha it will still be a little while. I need to get a few chemicals before I start
Pretty awesome!
I love your videos! Have you ever considered doing the Fischer Indole synthesis?
I actually did it to make Skatole.
I am planning on making silver electrodes for some experiments. Would this be a good way to coat a rod with silver, if so, what metal should the rod be.
I remember many years ago I made a similar silver bottle but I definitely did not use glucose or ammonium nitrate.
It was a very simple process. I recall a blue fluid I used, most likely silver nitrate.
Wish I knew what I did, any video you see on youtube uses similar a method as yours.
If you ever get a chance, you should look at the Molisch test. It's very nice if you get it working. In a way, it's complementary as it detects all carbohydrates. Great vid as always.
Cool, ill look into it?
God DAMN I love your videos.
Pregunta, con esta fórmula se puede hacer el cromado, que al final es lo mismo, plateado, niquelado, Cromado o espejo, solo pregunto
Looks awsome :)
Hello nilered, could you help me neutralize the tollens reagent so that it does not precipitate, since when preparing it and not using it at the moment, it precipitates after a couple of hours, it turns black, what I would like to know is how it is neutralized when it is ready to be used, what acid can I use to neutralize it hopefully you can I would appreciate it very much
Would there be a DIY way to use this to coat a flat piece of glass to make your own regular mirror?
How well does the metallic Ag remain adhered to the glass surface? I am thinking about this concept in developing Kratky hydroponic starter containers from used glass containers.
May I recommend a video about the atropine? About how to extract it from nightshade´s fruit and how to isolate and purify it?
I´ve been searching but there are no real conclusive methods to get the atropine from the rest of alcaloids.
Thanks for your time.
I have gallons upon gallons of the waste from making the mirror solution. And even lbs of dried up waste I would love to find out how to . Recover the silver. It’s like a brown dirt when dried. What form of silver is it?
I made this in my chemistry lab on a test tube and the test tube was so pretty I took it home:D
Hi i tried to spray silver nitrate on a surface any material . But it turned to yellow color. how can i prevent silver changes to yellow?
Wouldn't cooling your flask in an ice bath both reduce the degradation of the Tollens as well as increase the prevention of contact detonation of any silver nitride?
whether it can be firmly attached?
does not require an activator liquid?