[MasterGunner01]

Dry ice explodes? How does one get frozen carbon dioxide to explode?

[Utilizer]

At a guess? Insert it into a very sturdy container than add a small amount of water, then quickly and strongly seal it and leave.

Pressure "explosion", not the shrapnel-type from something like a grenade, unless you sealed it in a metal- or ceramic- composure container, but the damage is more on the nerves than physical. Barring any unfortunately-aimed shards.

Again, just guessing. Having seen the odd YouTube vidpost or two...

[babygene]

When dry ice sublimates it turns from a solid to a gas. If the pressure is high enough it turns back into a liquid if it is below the critical temperature. At that temperature however, the pressure is close to 1000 PSI.

So yes, if dry ice is placed in a container when it adsorbs enough heat it will explode when the pressure exceeds what the container can withstand.

[saintgermaine]

confine it in a closed container and as it begins to warm up and vaporize the pressure builds. Does this answer your question....?

[blackdog]

We made dry ice bombs in high school. Also any exothermic powder or granules mixed with liquid. A good one was granulated chlorine with acid poured in. Put the cap on damn fast and run like hell. In threaded PVC tube with caps on both ends it explodes inside a closed vehicle with enough force to blow out every window and then chlorine burns anything the residue touches.

A dust explosion got us the biggest boom along with flames.

This is the stuff you used to do as a kid. Now it's something Homeland Security goes nuts over.

[cynwoody]

Dry ice explodes?

Cremora coffee creamer explodes, too.

http://www.youtube.com/watch?v=IdMo_5VZHd8

Tutorial: http://www.youtube.com/watch?v=sSFu1ahRuR4
(It's probably a good thing that kid isn't a Mooselimb.)