ammonium nitrate and water get cold. how can i make a cold explosion

i need a chemical compound that makes extream presure in a millasectond, like an explosion but must remain cold.
I know that by adding ammonium nitrate and water the compound gets cold. so my question is by using ammonium nitrate and other then water can I use to make extream pressure build up in a short time while still being cold. this question is not for any explosive device to cause harm to anyone or thing. just wondering if a cold explosive could be possiable. 

It happens in nature.

If you want to make a cold explosion here on Earth start playing around with liquid nitrogen. You can do a similar thing with more power buy lighting thermite on a block of ice. Sure it takes some heat to make it happen but the end result is cold stuff everywhere.

Cool !

rickharris3 years ago

Your "explosion" will be an implosion. You don't create high pressure without heat.

You can of course make an explosion without heat a lot of chemical reactions will produce large pressures with little or no heat.

Without knowing more I can't tell you how. Explosions are by their nature dangerous If your just wondering then the answer is yes you can produce an explosive force from cold materials.