NaOH - Sodium hydroxide with Al in H2O makes H2 (Hydrogen)

[Fonta1984]

Correct equation is:

Al(s) + NaOH(aq) + 3 H2O --> NaAl(OH)4(aq) + 3/2 H2(g)

With HCl:

Al(s) + 3 HCl --> AlCl3(aq) + 3/2 H2(g)

So you'll need 3 times more HCl, also your gas will be contaminated by acidic vapors, and i think you don't really want it.

With NaOH the reaction is fast as well. It requires only a little heating at the beginning just to break the thin oxide layer on the Al, after that is self sustaining.

[MrMarcopolo12]

There are defiantly some morons here who can not solve equations

2 Al(s) + 6 NaOH(aq) → 3 H2(g) + 2 Na3AlO3(aq)

It is a solution, so no H2O is added

[mV33rs]

@MrMarcopolo12 well you need a solvent ;)

[MrMarcopolo12]

@mV33rs

yes I understand. I mean in the equation, in such solution, you do not have to mention the H2O.

[MrMarcopolo12]

@mV33rs

yes I understand. I mean in the equation, in such solution, you do not have to mention the H2O.

[dbolton9]

@MrMarcopolo12

Who's being defiant, you or the morons?

[chatzee1]

thatis something

[meanman90000]

Wait soadium hydroxide us flammable or is that just the aluminium

[mV33rs]

@meanman90000 the sodiumhydroxide in solution and aluminium creates a gas which is flammable hydrogen.

[noahboa9258]

@meanman90000 newb...

[AHW214]

i have made a lot of hydrogen with magnesium and vinegar. manesium from a mag fire starter got it at REI. using regular 5% acetic acid vinegar. i put in a bottle with a tube glued to the neck and put that in water i see h2 bubbles. at first the air is displaced and comes out the tube but h2 fills the bottle quickly. i blew up h2 bubbles it has a awesome yellow flame.

[Wilup]

→→→→→→→→→→→→→→

[Chowmeingeejah]

lolcatz

[rofl082193]

hm what happens to the sodium?

[AHW214]

Reaction goes as this:

2Al+2NaOH(AQ)=Na2Al2O4(AQ)+H2

I'm not sure how to properly balance the equation.

[UAEchemist2]

The HCl and Aluminum method is much quicker.

[mV33rs]

but you need HCl for it xD

[UAEchemist2]

Go to a hardware store, in the swimming pool section, you should find it.

[17hmr243]

@mV33rs it same cost in aus 6$ hci used for cleaning concreat or $9 for sodiumhydroxide drain cleaner

by volum they work out same

[11to]

mine of making H2 ballons always bubles up and fails. Why?

[mV33rs]

what do u mean by bubling up?

[11to]

it is getting så hot then starts to form black bubbles and dosent stop until it reaches the balloon and fill it whit the black soulution.

[hhohydrogen]

@mV33rs nah just chuck some alluminum foil into hcl acid works well

[TheSimpsons1488]

@mV33rs need more al and less hcl

[aaronlovespot]

thats why when i was a kid i found people making things with that . i wont

[PeriodicElements]

Take one H2 filles ballon, tape on a 0,5m medium speed fuse (15-20 sec burn time).

Take one heavy brick, and make a loop around the brick with some steel wire, and run a strong, light and thin thread through it. Tape the thread securely to the ballon, light the fuse, let it rise QUICKLY... BOOM!

Great for Parties and New Years Eve!

[lemon7777]

nice comment but where is the easiest source of medium speed fuse?

[PeriodicElements]

Depends on where you live... But if you search the web for something, you usually find it..=P

[jonnyboy9669]

fill the baloon w/ h2(g) then tie it up the tape a tissue to it then light the tissue, if its alot of h2(g) itll rise in the air and blow up, do it at night it'll look cool.

[gordonshart]

try adding some NOx from an can of aerosol whipping cream to the balloon much much more violent.

[0Sebek0]

shit, I need the stoichiometrics of this reaction

[NinjaKid3000]

hydrogen is the lightest element!! it would be perfect for a balloon.

try making the bottle rise by using plastic instead of glass

[mV33rs]

hehe, but then i'll loose my bottle! ^^

[marine12320]

I did the same except with sodium carbonate and calcium hydroxide and aluminum foil. Check out the hydrogen videos on my channel

[TijmenHKZ]

I did this yesterday and it worked very well :D

By the way,

NaOH + H2O + Al --> 2H2 + other stuff

[sanjak]

wow!