Dry Ice Bombs

OutHouse

Lifer
Jun 5, 2000
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lots of fun. every 4th of july i blow up dozens of dry ice bombs.

get a 16 oz plastic soda or water bottle. get some dry ice and a hammer. break the dry ice into small enough pieces to put in EMPTY bottle. after you get 5-8 chunks of dry ice in the bottle fill to 1/2 full of water, screw cap on and trow really fast. you will watch the bottle expand and hear the lable crack then BOOOOMMMM!!!! :D
 

TitanDiddly

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Dec 8, 2003
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Marked for later viewing.

Dry ice is solidified CO2 gas. When it warms up, it sublimates into a much larger volume of CO2 gas. The CO2 has only a small container to expand into, so to pressure rises as more and more CO2 sublimates. Once the pressure threshold of the container is exceeded, it explodes.
 

Anubis

No Lifer
Aug 31, 2001
78,712
427
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tbqhwy.com
its pretty simple

dry ice sublimanates (sp) goes directly from solid to gas, water speeds up teh priocess, put dry ice in a bottle with a lil water and put on teh cap, the dry ice will turn to gas FAST and because it cant escape it goes boom
 

OutHouse

Lifer
Jun 5, 2000
36,410
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just watched the vid. what a dumbass he is lucky his finger didnt get blown off.
 

JasonSix78

Platinum Member
Mar 5, 2005
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Originally posted by: PhasmatisNox
Marked for later viewing.

Dry ice is solidified CO2 gas. When it warms up, it sublimates into a much larger volume of CO2 gas. The CO2 has only a small container to expand into, so to pressure rises as more and more CO2 sublimates. Once the pressure threshold of the container is exceeded, it explodes.

Interesting, thanks for the info. We use to do the tin foil and drain cleaner bombs.

-Jason
 

edro

Lifer
Apr 5, 2002
24,326
68
91
I have done the "The Works" bombs with The Works and Aluminum Foil.

The trick to not getting your hand blown off, is to squeeze the bottle a little before putting the cap on, so it takes more time for the bottle to completely expand.
 

JasonSix78

Platinum Member
Mar 5, 2005
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Originally posted by: Anubis
its pretty simple

dry ice sublimanates (sp) goes directly from solid to gas, water speeds up teh priocess, put dry ice in a bottle with a lil water and put on teh cap, the dry ice will turn to gas FAST and because it cant escape it goes boom

Ahh, that's exactly what I was wondering. Just like the tin foil/drain cleaner there is chemical reaction which causes the gas to expand. I was wondering how dry ice alone would cause it to explose, water is the key then. mucho gracias.

-Jason
 

Jzero

Lifer
Oct 10, 1999
18,834
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Originally posted by: Citrix
just watched the vid. what a dumbass he is lucky his finger didnt get blown off.

Seriously. And what's with the dude wearing the pantyhose?
 

funboy6942

Lifer
Nov 13, 2001
15,362
416
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OMG how dumb. I wonder if half a stick wont go off how many of them would get right up on it and see why :p

 

TitanDiddly

Guest
Dec 8, 2003
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Originally posted by: JasonSix78
Originally posted by: Anubis
its pretty simple

dry ice sublimanates (sp) goes directly from solid to gas, water speeds up teh priocess, put dry ice in a bottle with a lil water and put on teh cap, the dry ice will turn to gas FAST and because it cant escape it goes boom

Ahh, that's exactly what I was wondering. Just like the tin foil/drain cleaner there is chemical reaction which causes the gas to expand. I was wondering how dry ice alone would cause it to explose, water is the key then. mucho gracias.

-Jason

Well, it isn't a chemical reaction- the reason water helps is that it heats up the dry ice much faster than if it were just air- there's a lot more thermal mass to heat up the dry ice. It will work without water- but it takes a lot longer, because the heat in the air in the bottle is not enough to allow the dry ice to sublimate much. The heat has to come from outside, which is more air, the sun, your hand, etc. If you just put dry ice in a bottle with no water, it can sometimes take hours to build up enough pressure. Sometimes people will do this at big public gatherings like concerts to get a rise out of people.
 

Koing

Elite Member <br> Super Moderator<br> Health and F
Oct 11, 2000
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Fvcking hell!

At least he was smart enough to not grab the bottle by the main of it and not just the top cap part.

Koing
 

Crucial

Diamond Member
Dec 21, 2000
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Good times. That bottle must have been pretty thick. The bottles we used would go much quicker. You have to squeeze the bottle before throwing as it buys you a few more miliseconds.
 

DVad3r

Diamond Member
Jan 3, 2005
5,340
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How fast exactly does the bottle blow after you pour the water in? I wanna try it, but at least need some guidelines lol