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7 votes
2 answers
854 views

Why is prismane explosive but cubane is not?

So I was reading about polyhedral hydrocarbons, because I dig the topic, and I read (admittedly on wikipedia entries... But they cited papers, I swear!) that prismane is explosive due to the massive ...
urquiza's user avatar
  • 731
12 votes
1 answer
296 views

Constraints on pyrotechnic explosives that won't detonate spontaneously at 500 °C when landing on Venus?

The Space Exploration SE question Premature detonation of explosive bolts when landing on hot Venus? explains the need for and widespread use of pyrotechnic fasteners and cable cutters for Mars ...
uhoh's user avatar
  • 5,900
40 votes
6 answers
12k views

How does ammonium nitrate explode on its own?

I thought ammonium nitrate was an oxidizer that needed to be mixed with fuel to form a high explosive (e.g., ANFO). But apparently there have been accidental explosions involving just the "...
Rob N's user avatar
  • 1,633
4 votes
1 answer
982 views

Aluminum powder reaction with air

I've made aluminum powder in a ball mill a few times, but my last batch began to smoke and caught on fire soon after I poured it from the tumbler. Nothing unusual was afoot. It was poured into a paper ...
Jeffrey T Smith's user avatar
15 votes
4 answers
14k views

Why exactly does molten NaCl explode, when it is poured into water?

Why does molten $\ce{NaCl}$ explode, when it is poured into water? $\ce{NaCl}$ has a high melting point, $1074\ \mathrm{K}$ ($801~\mathrm{^\circ C}$). $\ce{NaCl}$ has a molar mass of $58.44\ \mathrm{g/...
shre_sudh_97's user avatar
2 votes
2 answers
684 views

What happens when an explosion can't lead to volume increase of the thermodynamic system?

What if an explosion is not able to exit the container? Take a pipe bomb for example; assuming that the pipe bomb was hypothetically made out of such a strong material that the explosion is not able ...
Ramires's user avatar
  • 21
13 votes
4 answers
5k views

What makes substances explosive

Can someone explain clearly to me why some things are explosive?
Thurarcier's user avatar
25 votes
3 answers
9k views

Why shouldn't Uranium come in contact with water?

In the documentary about Chernobyl, it was mentioned that Uranium should not come in contact with water, otherwise an explosion occurs. What is the reason for that? What kind of reaction makes it ...
Ali Yucel Akgul's user avatar
38 votes
4 answers
10k views

What exactly is happening when sodium, potassium, or other alkali metal explodes in water?

There are lots of videos on YouTube showing sodium, potassium, etc. exploding when dropped into water (this, for example). I understand that when an alkali metal is exposed to water, a violent ...
bwDraco's user avatar
  • 513