Things u need:

Warm water
a small bottle (plastic coke bottles)
natriumhydroxide (NaOH)
aluminum foil

Dissolve the NaOH in the warm water ( offcourse in the bottle)
Put the aluminum foil in the bottle (watch out, reaction starts immidiately) Put the cap on, shake it. Throw it away.

Boom!

note: The gas that puts the pressure in the bottle is hydrogen It doesnt explode, but the pressure just makes the bottle burst

please god do not shake it have any of you guys who shake seen that video of the little fucker that shakes then the thing goes boom so just cap it and get like 100 feet away

too dangerous for me...i need time to run away...


o and what exactly is natriumhydroxide (NaOH)?
srry im really stupid when it comes to chemicals and shit

NaOH is not natrium hydroxide

NaOH is :

sodium hydroxide
n : a strongly alkaline caustic used in manufacturing soap and
paper and aluminum and various sodium compounds [syn: caustic
soda]

oh, sorry, here in my country it is called natriumhydroxide, I meant sodiumoxide... About the shaking; if the bottle is getting really hard (hehe) then you've got to throw it away. Just feel if the reaction is starting, if it does, Thow as hell...

Also for mine you have lots of time before it blows, Unless your some stupid fuck who tries to shake it for like 3 minutes and then sets it down.....well then I have to say you have the right to get fucked over for being so dumb...

haha...i would just harvest the hydrogen and have fun with exploding balloons and shit...pressure bombs can be made out of vinegar and baking soda...why waste my NaOH, and yes, i knew what you meant by natrium hydroxide..it is what sodiums finderer called it, we are all assholes for changing it....(hence the Na)

thought i should add Aluminium! not aluminum...altho i still call it aluminum....haha...im such a fuckin hipocrit, dont listen to anything i say...i hate me....

acid base pressure bombs are very unsafe they react very fast.

Generally it takes about 2 minutes before it explodes... I made about 30 with different types of bottles and mixtures (more water more foil etc...) The one that explodes the fastest did it in 40 seconds, So you have got time enough to throw it away, but don't be a dumbfuck and shake it too long...

the kid that blew his arm off he used chlorine and rubbing alcohol