Chemistry experiment 47 - Sublimation of Iodine

At room temperature, elemental iodine is a black-bluish solid.
When heated, solid iodine sublimates and enters the gas phase.
Iodine got its name from the Greek word ‘ἰοειδής’, meaning ‘purple’. Indeed, iodine vapor has a beautiful purple color.
Regaining solid iodine from iodine vapor can be achieved by cooling down iodine vapor on a cold surface.
Beautiful iodine crystals are formed.
Hazards:
- Iodine is toxic

[@faithcameron262]

when it's solid it looks like blueberries

[@aliumer257]

eat them

[@crazydrifter13]

Dont! You'd shit purple

[@ScienceWithJames]

drifter13 More like you'd go to the hospital for iodine poisoning.

[@lalupara2770]

U wouldn’t just shit purple u would have a stomach ache then shit purple

[@lalupara2770]

Wait... I thought they were blue Berrys

[@yichengquan7956]

THANOS GAS

[@m0atassem]

GOD COMMENT

[@shaanacheriyan1729]

I WAS LOOKING FOR A COMMENT LIKE THIS

[@saima8681]

Anyone here from onljne work at school

[@ianism3]

is anyone *not*

[@leenkotob6144]

Me !

[@legendaryexperiments7003]

Yes me you are from which school our Teacher opted this video as here is a good demonstration

[@chandanaghosh1623]

@@legendaryexperiments7003 it me

[@legendaryexperiments7003]

@@chandanaghosh1623 what couldn't understand

[@utalis47]

it melts into a liquid at 110 degrees and vaporizes into a gas at that temperature and pressure.Increasing the pressure will keep it in a liquid state. 5 grams of iodine heated in a sealed test tube(increasing pressure) will turn into a liquid and stay that way for a few seconds before boiling off into a gas. This result may also be seen if you use a larger amount of iodine,or a pressure chamber.

[@jessicacourson2610]

Beautifully executed video. Thank you for the subtitles.

[@seungjune4088]

ㅇㅈ

[@TawrinJenifer-wd2dh]

Still useful tho😢

[@drifty_9]

0:08 At first I thought they were blueberries

[@tariqt9965]

Same

[@elmothekillerofcringe7251]

Hey dude one of my online classes used you're video

[@laxmikaur1274]

Science is so beautiful...(when its practical😜

[@sweetbutpsycho6321]

true

[@RurouniKalainGaming]

I miss my old science classes, lol. Never get to do cool stuff like this in person much anymore.

[@joshuawang8456]

I know! Stuff like this would have been so cool!

[@elisei01]

this is chemistry and it's not cool.

[@joshuawang8456]

... yeah its definetely not cool well did u know chemistry is a part of science???

[@lalupara2770]

Man I just get assigned a page and that’s it no cool stuff

[@TonsOfTrackmasters]

*cough* online school

[@nchaitu2003]

Hows the guy who unliked this video

[@CoolMusicsChannel]

hes fine

[@azlanyaacob4737]

Hi, I'm wondering if I can use a snippet of this video for our college's (Labuan Matriculation College) video production for online teaching (due to covid19). It is not for commercial purpose. We will credit you in the video.

[@atlasnox9469]

I have a few questions! first, how sturdy are these crystals? can I repeat this process to get more, bunched, and thicker crystals? how long does this take? could I freeze, say, an animal skull and get the same effect, it would it not stay cold long enough? last, are they toxic after forming?

[@Birkes]

They would be as soft as the upper laayers of ice, you can scratch them off with your fingers like dust :)

[@camilla753]

What if our hands stands above like the ice? Will our hands be covered with those crystals?

[@lacane5722]

why do people dislike the video. They got what they wanted

[@Maw0]

Who is doing this for Chemistry?

[@robertguenther6710]

That's awesome but nobody explains how long it takes to leave the round bottom flask on top and how long it takes to form crystals?

[@madikellestine8458]

awesome video!!! ill show this to my class

[@sanjayalakmal1580]

Good Subscribed 👍👍👍

[@SAM-qv3kz]

May i know how long it will take for the crystals to form?

[@utalis47]

above the surface of the iodine they will start forming within a few seconds and up the sides of the beaker.

[@seemanegi1006]

Why Is Chemistry so beautiful😮💜💜

[@enderonian2073]

Iodine is my favorite type of element

[@fluffle4456]

yo how's your gas?

[@patnor1011]

If they are dissolved in distilled water what is the way to get them back to solid state but more like they look like at 0:13 and not as crystals.

[@MediaSubliminal]

How do I deal with the condensation on the top flask? It just drips water back into the bottom beaker and I never collect any iodine.

[@milesmccollough5507]

usually this would be done in a lab with controlled humidity.

[@eunaekim9216]

Yes, but is there any residue left on the outside of the flask?

[@sarahmarshall748]

Shouldn't you be wearing protective gloves for lab work? (Just for good practice and as an example to the kids.)

[@StarVFoe]

I've asked this question before when I had my first lab and my lab professor/manager said that it risks the chance of dropping any glass instruments because most of the time your hands will be wet. Maybe, my professor never thought of gloves with traction tips.

[@danieljun5360]

@@elisei01 Yeah, screw the next generation. We should end the world right now and become extinct :D

[@tariqt9965]

Whos here from home learning

[@selincicek6440]

Yep

[@Criostoirg]

We have to do this table of observations I dont even understand

[@yaboijam6834]

Ye lol

[@MSJChem]

Great video, thanks.

[@jb4610]

How long does it take for the fumes to stop producing

[@TommyH03]

iodine in solid form does still release purple vapour at room temperature, so I'm assuming never

[@theaburgess3359]

genuinely thought they were blueberries oops

[@josephfranco3427]

How long it will take?

[@lalupara2770]

Ok... but how do u do what u did?

[@EchoAbenstern]

1) Get iodine (it doesn’t have to be spherical shape), a beaker, and a round bottom flask (you could use different containers if you want but that’s what was used here, so long as you have something that can cover the top and hold ice) 2) Put the solid iodine into a beaker, and fill the rbf with ice. 3) Put the beaker on a hot plate in an area that has good ventilation (iodine is corrosive and an oxidizer) and heat the beaker. 4) Once you see vapor coming off the iodine, put the rbf on top of the beaker, and allow for the iodine to sublime for a while. 5) Crystals. Avoid touching with your hands as mentioned before they are not good for skin.

[@faiyazrahman7899]

thanks for the video i had to write the observation schools stuff

[@vidyachoudhari1981]

Science is best

[@choujoyce2275]

Is iodine toxic? Will it be safe operating in an open circumstance?

[@leenkotob6144]

We have a note in our book warning of poisonous iodine vapor

[@khalifatheschoolofboxing2022]

Is there no leftover

[@impanab.m1223]

when it was purpl balls. !!!! 👍👏👏👏👌👌good well done. 😇👌👏👌

[@anth00000]

So how do you get liquid iodine?

[@quinfaciousbendelictusocta5941]

The problem is... How r u Gonna get the solid iodine crystals down?

[@EchoAbenstern]

Just scrape them back down into the beaker

[@bubble2723]

how about pink crystal ?

[@hexenh]

So this is the power of Purple Haze...

[@lioncat79]

how much are they worth

[@nikan4now]

NO wait! Sublimation is when solid goes into gas directly.This is not happening when you heat iodine. It goes into liquid then it goes into vapour. Look at the phase diagram at 1atm. However, at room temperature and 1atm without heating some sublimation happens cause idodine's vapour pressure is low.

[@josep43767]

What is happening in this video is nilation (solid evaporation) since it is below the melting point.

[@aichadell3929]

It's kind of like an under block

[@divplays1984]

is iodine a toxic gas ?( perhaps because it is in the same group as chlorine?)

[@homjakarta]

Yes, i think

[@sohambadar8080]

Amazing ❤

[@eunaekim9216]

If it's crazy but it works, it ain't crazy!

[@angelalim982]

What is the function of this iodine???

[@TommyH03]

In science , iodine is used to stain plant cells when looking at them through a microscope to get a better view of the cell and the structures within : e.g. the nuclei.

[@justabo_ok]

so its a chemical or physical change? ?o?

[@ScienceWithJames]

BookFanZ YT Physical change. The iodine is just going from solid to gas to solid. It is not reacting with any other chemicals.

[@FaizaF]

that was beautiful

[@33pandagamer]

I hope this was recorded in a well-ventilated room and while wearing a gas mask.

[@fatmasaid8565]

what other changes of state occurred?

[@TommyH03]

crystallisation

[@dillonnissen7937]

No

[@belstubley6405]

can someone explain why the solid iodine went from dull to shiny crystals after it was sublimated :o

[@queencarrot403]

It’s because there wasn’t any mold to give it a shape, so it took a random shape, as water when it gets solid without any mold :)

[@belstubley6405]

@@queencarrot403 awesome!! Thank you!

[@kristierzmaravila3536]

is this deposition ?? just askin

[@clairelindeman7326]

This is sublimation, the opposite of deposition... Sublimation is going from a solid to a gas deposition is going from gas to solid

[@elizaklarzak617]

I like the experient

[@nairpcnaurpc3769]

Very interesting 😐😉

[@adm1v]

ليش ماكو عراقيين 😅 Why are there no Iraqis?

[@SissouwChan]

This is not sublimation! This is condensation.

[@cantaloupe7296]

I wish they did an asmr of scraping the crystals off

[@cuteangel3048]

Nice 👍 👍

[@vox8663]

POV: You came here because your teacher told you to watch this video

[@user-m0008]

Frr

[@Quran.And.Science]

Good work

[@q.mobile8630]

Beautiful 😍

[@katiemccune3839]

Anyone else here because their chemistry teacher cant teach so you are trying to teach yourself 👁👄👁

[@cadmiarjw]

damn that ice turned into terraria underground hallow :skull:

[@rosieleaverton]

My brother did this for a science project about iodine once

[@sarahmarshall748]

But good video! Thanks.

[@komalrani3888]

good video nice thanks

[@vald4942]

Wonderful

[@-lovi-961]

When no mans sky generates a purple planet:

[@yousifalani5707]

The birds sound is beautiful

[@chemistrykiduniyabyjavedsh4659]

superb

[@noone-yy2ef]

That's amazing I love chemic😆

[@robertmedrano9256]

Robert Medrano was here.

[@jayanthi6195]

excellent !

[@luisvoltz2693]

Grüße aus der 8F vom WHG München

[@legendaryexperiments7003]

Nice purple gas

[@_ajmah__]

From liquid to solid, interesting

[@iframoin4300]

Mind blowing

[@olcaynalbant7252]

Was geht

[@mrthunt5770]

Purple

[@matteoaubree1727]

merci pour la vidéo cadeau pouce bleu XD

[@xuanyidu3259]

who thinks solid iodine look like blueberries?

[@galileogalilee6542]

J'ai fait l'expérience avec madame amrane experience exeptionnelle

[@torrelui]

sorry i dont speak croisant

[@mohamedkhalil5254]

Thanx

[@Theo.Lefrancois]

Ha ouais, c'est violet en effet. Oui oui, je suis un Wankil fan, je ne fais que passer.

[@privymakuvaza3966]

This is cool

[@itzmangloo5722]

SHEEEEEEEESH MAN IODINE IS SOOO OSM ;) ME AT SIXTH GRADE

[@eyrrrr]

احس ريحته مال بلو بيري

[@reemyosman7499]

wow 😍

[@imanl.b8180]

Wouaw, it's magic

[@pearl-785]

No, wow it's science "i just had to say it"

[@曾晨瑋-h9d]

cool

[@mxsolo8488]

✨ cHeMiStRy✨

[@ayanbarnwal2905]

forbidden blueberries

[@chloefulton5448]

Hello I saw your comment you put on hello it is rana you said piper was not good togavin I don’t think so piper definitely deserves enything I love piker so yeah I love piper way way way more than gavin just saying👅🗣

[@tudornenciulescu1495]

Warrup guys

[@banglafoodmania9090]

Wowwwww

[@rhondabowling]

*this is god and the tube is the universe after thanos snapped his fingers*

[@beka019]

МУСЛИМ КАЛАЙСЫН

[@rudra7615]

Holy sh.. So directly from gas to solid, no liquid state at all. F*** me

[@DrWooper]

Yo I am just studying right now