Chemistry experiment - NaOH + aluminum

[RandomGuy8D]

Shouldn't there be some sort of a warning on this video saying, oh... I don't know... DO NOT TRY THIS AT HOME!!!

[sofachiller]

desswegen nie eine alutank mit NaOH reinigen

[DRAKO0799]

its alive its ali oh crap it melted

[eshnish]

This was neat.  Thanks!

[harajukuluvr288]

whats the redox reaction for this?

[jammmon]

nice

[jAsciba]

be sure not to take a big nose hit of that, my teacher would say

[gulfland]

DEAR VIEWERS,

FOR ASTONISHING FACTS, JUST TYPE ON THE SEARCHING BOX:

Quran and Science

SEVEN PARTS! YOU MUST LIKE THEM!

[oneofusall]

@gulfland Do I? Big bang is not a fact, it is a theory, so basically Quran is a nice theory, a book. Get over it...

[gulfland]

@oneofusall How about the expansion of the Universe? Be rational!

[gulfland]

@oneofusall How about the expansion of the Universe? Be rational!

[eshnish]

@gulfland Scary that you are actually participating in science, but still foment that kind of fantasy. The people that try to tie the Qur'an to anything scientific need to learn the words "prescientific thought and myth of origin" and "headslapping goofiness." Can't you just accept it as religion? I can't take any of you people seriously in my Ochem or biochem. You think the only reason two hydrogens attach themselves to oxygen is that Allah wills it each and every time...no natural law.

[gulfland]

@eshnish Albert Einstein "Science without religion is lame, religion without science is blind."

[draksenzakura]

@gulfland Albert Einstein did not believe in the religious god, he believed in a ''god of nature'' and even called himself an agnostics. So it is easy to quote somebody and interpret the quote in your view without having read his books to understand in what context did he said that.

[larayjah]

@draksenzakura Ok Soo You Are Sayinqq.??

[TimmyWoodey]

Chemistry Rocks!

[DarthFennec]

THEYRE EATING IT

AND THEN THEYRE GOING TO EAT ME

...

OH MY GOOOOOOOOOOOOODDDDDDDDDDDDDD

[joeylawn36111]

@funnyrodent The reaction produces both sodium aluminate and hydrogen gas.

[fuelban]

Very nice video....... thanks.... I was just explaining to someone why not to use alloy plates in HHo, Just going to tell them to watch this video now... cool.

Thom in Scotland

[simplyincognito]

hydrogen gas... should of harnessed it and made a zeppelin...

[shussey100]

If you just done a murder. And you want to cleanse the scene. You mix this solution with bleach topically and scrub the place all over. Of course you would be wrapped head to toe in a body suit so you don't leave any trace of yourself.

Then use luminol under UV light to see if you left any strains.

Motse in Botswana, Africa.

[yourcathatesme]

3 words: duuuuuuuuuuuuuuuuuuude!

[nvmason73]

I'm confused.. What is the stuff on the spoon and what is the liquid he put on top of the whole thing??

[Britneylover3]

@nvmason73 The white solid that was put on is NaOH (s). The liquid is just distilled water. He/she is just trying to make NaOH into a solution. Because the amount of water used was so little, the solution of NaOH is concentrated. Here is the generic equation:

2 Al (s) + 6 H2O (l) ---> 2 Al(OH)3 (aq) + 3 H2 (g)

Al(OH)3 (aq) + NaOH (aq) --> Na+ (aq) + [Al(OH)4]- (aq)

[Swashbucky]

The NaOH dissolves the glass too!

[medoalking5]

To accelerate the reaction , make the aluminum like a small ball , and insert it to a tube filled with NaOH

[Llama4295]

insane it was small then bigger and bigger

[geon79]

The 2° and especially the 3° reactions are wrong.

More simply aluminium is such a powerful reducing agent that could react with water itself, just like sodium or lithium (3° reaction). The reason why it doesn't is that in normal conditions the oxide that forms prevents futher oxidation (passivation), but with NaOH it dissolves immediately via 2° reaction and offers no protection

2° reaction: Al2O3+3H2O+2OH- => 2[Al(OH)4]-

3° reaciont: 2Al + 3H2O => Al2O3 + 3H2

[rnedisc]

the NaOH went nomnomnomnomnom

[1993weekniej]

first reaction...NaOH --water--> Na+ + OH-.

second reaction... 6OH- + Al2O3(Alumiumoxide... passivation) --> Al2O3 3- . 3H2O (the grey mineral what also arises is an amphoteric hydroxide)

third reaction... 2Al + 12OH- --> Al2O3 3- . 3H2O + 2H2.

This is why you don't see immediately the strong reaction proceed. And the Na remains dissolved in the water.

[Kraized]

I love this. So what's happening? I saw sodium hydroxide on top of the aluminum and then water was added. I know that hydrogen is created, but is that the only gas created? What exactly happened to the aluminum? What happens to the oxygen? What happens to the sodium? Ahh I need to know!!!

[wakamoleee12]

better living through chemistry

[kubu59]

This is the most epic sodium hydroxide + aluminum foil reaction ever \m/(>.<)\m/

[TheChickenrape2009]

Meahahahaha it's alive oh wait nope it's dead

[kmb2620]

what are the products?

[fungsiufung]

Al(s)+NaOH(aq)->Al(OH)3(aq)+H2­(g)

[sk8ergirl2014]

@fungsiufung sorry but that doesn't balance..

[mascio88]

@fungsiufung sorry but i not understend the reaction in what form is sodium after the reaction ? Na+1 or Na

[gigstart]

@fungsiufung

Wondering what happened to the Na?

[lesorciercalifornien]

I guess a little white lye _can_ be bad...

[zacharylisle]

uh OK i found about 1kg of sodium hydroxide down at my granddads shed since he has passed on i have an array of chemicals on my hands and i am able to gain access to them R.I.P Granddad i love you for what you have given me... yes!!

[ghostmusic12]

did anyone see this and think of The Day the Earth Stood Still?

[lexichronicle2]

When I was about 14 I thought I'd try making a hydrogen airship from a bin bag. I filled a demijohn (big glass wine fermenting flask) with a bottle or two of lye, then added a substantial fraction of a foil roll.

It was going great until self heating caused thermal runaway. The thing went absolutely ballistic and there was a plume of steam rocketing out the top. I rapidly left the vicinity, switching all the electrics off and fearing a hydrogen explosion.

[macedoniangirl190794]

what is that in the bootle...what you put in ??? pls answer

[lexichronicle2]

@macedoniangirl190794 it's water. the base will rot through the foil eventually on it's own, because it will pull moisture out of the atmosphere. he squirts some water on it to speed up the process.

[macedoniangirl190794]

@lexichronicle2

thanks...

[mynameisdarthtater]

Why not break out the lighter? After all, H2 gas is the reason the Hindenburg went down

[mcnc12]

So you used sodium hydroxide and aluminum foil, what was the liquid used in the video?

Answer back plz and thnk you (:

[DreadedScourge]

Aluminum Foil: OH GOD WHY?! WHY?!?! WHYYYYYYYYYYY?!!!!

[gabryhyrule007]

Ah come on people, if you have no idea what's happening, shut up and stop trying to make up wrong equations and saying one metal is more reactive than another. If you KNOW the reaction, don't correct fools who persist to say crap, it's childish.

[69aussieguy]

What's up with everyone trying to give the chemical equation? I mean most make it more complicated than it needs to be, and are wrong. Here is a balanced equation

2Al + 2NaOH + 6H2O ----> 2NaAl(OH)4 + 3H2

[mjaikb2003]

is that displacement reaction??

[Cheejyg]

whats the chemical equation??

[Rainbowpikmin93]

So what was the liquid? just distilled water or what?

[MrsRandomAnime]

bye bye aluminum foil. we'll miss you ;-;

lol, nice experiment!

[stratwarrior]

Correct me if I'm wrong, the NaOH reacts with Al to form Al(OH)3 and Na metal, and the Na metal reacts with the water present to form more NaOH and H2?

[bismuthcadmium]

Sodium is a more reactive metal than aluminium, so it can't be that

[stratwarrior]

I looked it up, the NaOH removes the layer of aluminum oxide so that water can react with the Al to form Al(OH)4- (aq) and H2

[marybrown19861986198]

thank you i agree

[Bastiaanoskam]

@stratwarrior

No, The H2 reacts with the OH from Na which creates AI to form O3.. rly...

[Chmielok]

No, a complex is forming. Na3(AlO3)

[darkfang77]

No, because sodium is more reactive than aluminium, it won't be displaced.

Instead the sodium will become locked with the aluminium.

Like:

2 Al + 6 NaOH = 2 Na3AlO3 + 3 H2 (might need balancing)

[adriiPortillo]

@darkfang77 WRONG! Alluminium is WAY more reactive than sodium. Actual equation is:

3NaOH + Al --> Al(OH)3 + 3Na+

2Na+ + 2H2O --> 2NaOH + H2

The bubbles are hydrogen gas! Have you ever seen sodium producing a passivation of sodium oxide ?!!?!?!?

[darkfang77]

@adriiPortillo

Google reactivity series.

You'll find that I'm right

[Chmielok]

@adriiPortillo

What you said is incredibly stupid. Na IS more reactive.

This is not replacement reaction. Yes, I have seen sodium oxide.

What do you think, why do the hold it in oil?

[adriiPortillo]

@Chmielok i said -passivation- of sodium oxide, asshole. go get your AIDS treatment.

[Robyytz]

@adriiPortillo

No aluminium isn't more reactive than sodium it is :

K Ca Na Mg Al Zn Fe Pb H Cu Hg Ag Pt Au

[marybrown19861986198]

hi !can you please tell me what is the chemistry behind this reaction( i need it for an exercise )?thanks in advance

[hhohydrogen]

in hydrogenation can i use hho? or must it be h2? does the nickel catalyst simply pick up the h?

[tatyjt118]

wow and people put this in their hair me being one of them but no more. Im going natural

[kandymews]

As if you dont eat mickey d's or potato chips. check the ingredients of the oil they use. there are literally caustic and toxic materials in their food and grease that are used "for your guarantee of a fresh product". Most of these things are lethal in concentrated doses.

[dudebesz]

This video is awesome. It just show's how easily Sodium Hydroxide can react with Aluminium foil. I have to do this experiment one day It would be great.

[Benjimindle]

btw pottasium hydroxide works even better (its more reactive), but its hard to come by.

NaOH, however, is commonly found as drain cleaner, a brand named "clean off" is 100% NaOH

[freakin1random]

@Benjimindle i have a jar of it thats two gallons and it only cost me free because i got tax breaks on it :)

[Benjimindle]

2 chemistrymagicman-

&carlos

that chemical is just water.

the NaOH dissolves in it, allowing it to react with the Al. if you add the NaOH to boiling water in a jam jar, then drop in a lot of shredded aluminium foil it creates a steam and hydrogen explosion- reaching several metres high if you get it right...

[chemistrymagicman]

What chemical do you pour on the Sodium Hydroxide and Aluminium foil? If you know, tell me at my youtube channel.

[carlos10047275]

is the liquid added just water or acid?

[ChemistryLab1]

water

[07PamPer07]

@TomIRIDIUM

what gas i that i dont mean H2 but the gas from the acid or something is it toxic?

[MortalKombat773]

RABIES! jk that was awesome

[krankiev]

does this work with potassium hydroxide as well?

[fesss83]

@krankiev sure

[ChemistryLab1]

@krankiev yes

[steve27106]

Another after effect of this is probably Parkinsons disease! This guy is dangerous!

[mV33rs]

hahahahahahahaa

[kishthedish]

ohh wow, this is just what makes me smile

thank you

[pilot111333]

sorry guys....but wht were the main substances used ...aluminium & NaOH....what was the 3rd substance?thak u

[Novatorm2k3]

Water

[Wilup]

+H2 ^ |

[HazMatLabz]

When I tried this reaction I got some white corrosive fumes off of the reaction. I used more sodium hydroxide than aluminum and the reaction was very hot so could those be sodium hydroxide fumes?

[Novatorm2k3]

NaOH dissolves the Al2O3 that is produced by the reaction between Al + H2O. Aluminum Oxide is solid and makes a passive layer that slows the H2 formation:

2Al + 6H2O + 2NaOH → 2NaAl(OH)4 + 3H2

2NaAl(OH)4 → 2NaOH + 2Al(OH)3

2Al + 6H2O → 2Al(OH)3 + 3H2

[wankervon]

You don't even have directions? Not very good too me. ADVICE............. next time give directions on your video!!! NUMBER 2 WAAAAAAAAWAAAAAAWAAAAAAAAAAAAA­AAAAA. OH and sooooooooooooo sorry if I hurt you!!!!!! Its a good video.............. but not the best.

[guitar23man23]

bad idea in a glass dish.

[Reality9O]

Yeah, because after he was done with experiment he threw some pasta onto that plate and ate it like a crocodile without even washing shit, huh?

[guitar23man23]

no, the heat from this reaction couldve liquified any residual NaOH and eaten through the plate. highly unlikely, but it could happen.

[guitar23man23]

and i just realized that's ceramic anyways, so not that big of a deal.

[IamSnozzler]

In this reasction, the water is reduced to hydrogen by the aluminium, which is itself oxidesed to aluminate. The sodium is just a spectator ion and the hydroxide helps to strip the protective layer from the aluminium by dissolving the otherwise insoluble aluminium oxide layer as it forms.

NaOH +3 H2O + Al --> NaAl(OH)4 + 1.5 H2

[rofl082193]

sooo what happens to the sodium in this reaction?

[guitar23man23]

try it with powdered magnesium, but light it on fire instead. leaves behind sodium metal.

[brainiac1595]

whoooooa

[firestormer123]

i think i can explain

saly: NaCl  water : H2O

NaCl + H2O =NaOH (wich is sodium hydroxide) + HCl (chloridric acid) which can eat through thin alluminium usually used to clean drains :)

[KrispyKangaroo]

HCl doesn't eat through aluminum. H+ ions do, but they tend to get neutralized by the OH- ions. More likely is that there's a complex ion being formed.

[sharpfuryz]

lolwut, NaCl is not Na(+) + Cl(-)

[habbopassload]

NaCl + H2O is not Sodium Hydroxide, It's just salt water.

HCl is Hydrogen Chloride, if this gas is disolved in water, you'll get hydrochloric acid

[asianspark]

So, when you drink SALT water you're drinking ACID?

NaCl + H2O = NO REACTION.

It just produces an aqueous solution of NaCl!

And, you need a medium for HCl to eat through aluminum like water!

[TheDrkKnght1988]

Soidum hydroxide is the srong base which can eat metal including aluminum.

[erlihmandl]

Как профессиональный химик : это интересно только для начинающих !!!

Я ещё в школе при помощи этой реакции водородом шарики надувал на демонстрацию !!!

Алюминий брал в гранулах или обрезки проволоки.

[snikpeis]

the chemicals used in this vid looks a lot like the stuff you use for cleaning the drains in your kitchen sink etc. This mixture actually contains aluminum, along with salts and NaOH. You can see the small aluminum balls in the beginning of the vid. I guess the aluminum foil only enhances the reaction that happens anyway when you add water....

[CuMeiLin]

gad. i'm really in love with chemistry. i wish i could shift course to chemical engineering.. wish me luck xD

[Toni4044]

lol thats awesome

[bEfkake]

the Al(OH)4- and Al(OH)6 3- species are called complex ions. thats why it has a charge. Al(OH)3 is an ionic compond and has no chrge. I just don't know which complex ion is formed

[v3user810]

products of the reactions are sodium metaaluminate NaAlO2 and hydrogen gas H2

[bEfkake]

I know that a complex ion is formed, it's either Al(OH)4- or Al(OH)6 3-. How can you tell which one it is

[brightsun68]

is this safe for a class demo

[alexgalvan1]

aww das tight 5/5

[BASilAndSAPhronyummy]

Goodness, it burnt right through the foil?

[trailertrashrnr]

WOW! a caustic substance reacting with metal. who would of thunk it

[Headsh0tz]

Can someone explain to me the science behind the exploding liter bottle?

-Aluminum Foil

-Toilet Bowl Cleaner

-Liter Bottle w/ Cap

-10 Yards distance from the bottle...

Aluminum Foil (rolled up balls of it) + Toilet Bowl Cleaner shaken up inside a 2 liter bottle and thrown creates the bottle to inflate and eventually, if you did it right, EXPLODE.

[TomIRIDIUM]

Toilet cleaner conctains NaOH. It reacts with aluminum foil to form hydrogen. Hydrogen cannot escape, so the bottle inflates and, if the pressure is high enough, it explodes.

[Headsh0tz]

Ah never knew that...Thanks...You just got me an A+ on my science project XD

[TomIRIDIUM]

You're welcome :D

[Headsh0tz]

Now I hope I can get extra credit for Elephant Toothpaste rofl.

[BryanBeatsYouAll]

@TomIRIDIUM

Toilet cleaner contains HCl, not NaOH.

[chaosopher23]

@BryanBeatsYouAll Muriatic acid is HCl, which is a masonry cleaner, also reacts with aluminum ("Works") as does NaOH, which is drain cleaner. NaOH is preferred over HCl in drains because NaOH doesn't attack copper, while HCl will. Red Devil lye, Drano... both NaOH.

[firedude201234]

@chaosopher23

HCl is hydrochloric acid not muriatic acid.......

[dtarvin870]

@firedude201234 if you buy HCL at any hardware store it will say muriatic acid on it. It's the same thing.

[chaosopher23]

@firedude201234 Look up the name "muriatic acid" in wikipedia. Muriatic acid is the archaic name for hydrochloric acid.

[ElijahWheeler]

@TomIRIDIUM No. The Hydrochloric acid reacts with the aluminum.

[darcyryan99]

@ElijahWheeler hydrochloric acid wasnt used?

[ZeroFive1]

@Headsh0tz It creates hydrogen gas which takes up more volume than toilet bowl cleaner or aluminum foil. For added danger/explosiveness put a fuse in it. :P

[Headsh0tz]

@ZeroFive1 I was meaning like what gas does it create to explode. But thanks anyways, hopefully I do this at the end of school lol. Last year I did firecrackers down the hallway, this year: Bomb lol.

[lexichronicle2]

@Headsh0tz i'm preying to god that's a joke. you can't even work out what gas is coming off, despite being told, and you're talking about making a bomb to set off at school

[Headsh0tz]

@lexichronicle2 Yessir lol. You have to understand dumbasses like me. XD

[bryguy95]

@ZeroFive1 would the resulting explosive reaction cause water to form in the tube?

[RichieInDaHood]

Oh! Good man! 5 stars!

[oppedx]

get that shi"p" on you and you are dead!

[fishcake1235]

Hi can someone help me - As I understand it - 2Al + 2NaOH + 6H2O = 2NaAl(OH)4 + 3H2

In practice, aluminium tin foil + tap water + NaOH => brown precipitate + aqueous something + H2 gas

- my question is what is the brown precipitate, also how do I isolate Al(OH)3 from the solution

[Chemateur]

Not quite right. The reaction is 2Al + 2NaOH + 2H2O → 2NaAlO2 + 3H2. The brown precipitate I'm fairly sure is from the impurity of the aluminum foil. It's oily stuff that gets put on there during manufacturing. It's easily filtered off. I haven't yet figured out how to get aluminum hydroxide from it yet. Hope this helps :)

[fishcake1235]

thanks for the comment :) :)

[CuMeiLin]

hey.. what was the liquid added in the vid was it water?

is the aluminum foil used here the same as the foil used to wrap our food? please rep too :D

[Chemateur]

Yes, it was water. Yes the aluminum foil is the same as foil used to wrap food.

[CuMeiLin]

thank you for your answer! :D

hehehe

[paraIIeI2]

what are the products formed when NaOH reacts with Al?

[Theaterkid305]

omg cool science!

[DG121480]

NaOH... Sodium Hydroxide?  Lye?

[purplewombatz]

Lye?

[dzedajusr]

try to burn those gases xD

[jazzmonkeycarpet]

ha. dont try that

[DBGokussj3]

there's a lot of oxygen

the most powerful is two H2 ang one O2

[3a1n1ac]

COOOOOOOOOOOOOOOOOOOOL!:D

[bla287]

2 Al + 2 NaOH + 6 H2O → 2 Na[Al(OH)4] + 3 H2

[DBGokussj3]

or Na3[Al(OH)6]

it depends ;)

[bla287]

Honestly, I don't exactly know about the coordination number of Al(3+). Can it really also be 6 if pH is high enough? I thought it was too small for that, but I don't really know ;)

[DBGokussj3]

hmm

i've never do that so i dont know :)

pH is high (>13) i think but...

it depends

sometimes in books there is [Al(OH)6]3-, sometimes [Al(OH)4]-

[mcr000nataly]

aaaaah!i'll have nightmares this night :'(

[PeterCarneades]

2Al + 2NaOH + 2H2O = 2NaAlO2 + 3H2

[ydna008]

"=" ? Shouldn't it be "-->" or something?

[PeterCarneades]

"=" emphasized the quantitative relation among those substances. While the arrow emphasized the direction of the reaction.

Both of them are right. Thank you for your comment!

[andxyzt]

Not exactly, "=" represents the "duble linking" (I think is called in english) (the sigma-pi link)

[PeterCarneades]

In my inorganic chemistry book, "=" is right. This won't cause a confusion. But my Organic Chemistry book, "=" means "double bound" , while arrow indicates the "reaction". Organic reactions are usually low-yieled.

[slateflash]

Am i rite that this happens to the more reactive amphoteric metals too?

[asdfasdf8904]

same reaction with HCl

[desinfector]

drain cleaner has already small "nuggets" of

aluminum in it. These are the dark grey things u

can see in the hydroxide.

pure hydroxide is sold in shops for electronic equipment where u can buy all items

to etch pcb's yourself. Its not too expensive there.

[dignifiedidiot]

where do you buy lye in powder form like that?

what kind of stores?

[qv76]

Holy shit that eat it up.

[Nby21Blog]

where do u get lye from? :D i like collecting chemicals and want to have lye. As i heard , lye is a dessicant right?

[TomIRIDIUM]

You can get it in a shop with chemicals, but you can also use drain cleaner.

[bledin2]

What is the product of this reaction!

[TomIRIDIUM]

H2 and Na3AlO3

[tijgerjorri]

You should not call it Na3AlO3, because the salt cannont be isolated. If you put it this way, NaAlO2 would be better, I guess. However, what really happening, is that hydrated aluminate-ions are forming, eg. Al(OH)4-

[Satspy]

Thanks tijgerjorri.