Is there such a substance which can instantly freeze water if it is added due to an endothermic reaction? And is flash powder(Potassium Perchlorate with Aluminum powder) very unstable? Can you bring it with you in your pocket?I just need to know becuase I'm a magician and am trying to come up with new tricks.
2007-01-20 14:18:20 · 2 answers · asked by Sliceathroat 3 in Science & Mathematics ➔ Chemistry
Well what is it?
2007-01-20 14:22:13 · update #1
Check this out for endothermic reactions
http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA3/MAIN/ENDO2/PAGE1.HTM
http://chemmovies.unl.edu/chemistry/dochem/DoChem096.html
http://chemlearn.chem.indiana.edu/demos/6-1%20Endothermic%20and%20Exothermic%20Reactions.htm
The last link refers to the "cold packs" now availble in drugstores. this is how they work, with an endothermic reaction.
And for flash powder..
http://en.wikipedia.org/wiki/Flash_powder
http://www.reaganwiseman.com/data/Pyro/FlashPowder.html
2007-01-20 14:29:10 · answer #1 · answered by Joni DaNerd 6 · 1⤊ 0⤋
There are polymers which will absorb a lot of water and remain a solid. Problem is mixing the water and the powder well enough so that ALL of the water is absorbed. As to "freezing" water... I suppose there could be solutions which are easily supercooled and look like water and can be triggered to "freeze". I don't know of anything which fits the bill.
I would consider perchlorates as explosive when mixed with Al.
The very fact that you're asking this question on Yahoo means that you shouldn't consider it. There are authoritivce sources, but not on-line. You should know better. Do your research: buy the books and study.
2007-01-20 22:58:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋