Adas
National Hazard
Posts: 711
Registered: 21-9-2011
Location: Slovakia
Member Is Offline
Mood: Sensitive to shock and friction
|
|
Nitrous oxide based explosives
Hello,
I was searching and I didn't find anything, so I made a new topic.
Nitrous oxide is very common, and (almost) anyone can buy it in pure form. I was wondering if it can form explosive mixtures (other than gaseous) or
energetic materials with other substances. I tried dissolving it in castrol oil, but it didn't dissolve much, and when I tried to light it, the gas
just went out. Are there other possibilities? Is there an ogranic solvent which can dissolve N2O very good? If not, can N2O be used as a reagent for
making some energetics? I do not know much about its reactivity, but probably there is some way...
Thanks for your time
|
|
hissingnoise
International Hazard
Posts: 3940
Registered: 26-12-2002
Member Is Offline
Mood: Pulverulescent!
|
|
Quote: | Is there an ogranic solvent which can dissolve N2O very good? If not, can N2O be used as a reagent for making some energetics.
|
Nitrous oxide contains little more oxygen than air and it is used as a safe oxidiser in some propellants!
Liquid N<sub>2</sub>O dissolves some organic substances, though, and these mixtures would likely be dangerously sensitive.
From Wiki--- Quote: | Chemical/physical
At room temperature (20°C) the saturated vapor pressure is 58.5 bar, rising up to 72.45 bar at 36.4°C — the critical temperature. The pressure
curve is thus unusually sensitive to temperature.[67] Liquid nitrous oxide acts as a good solvent for many organic compounds; liquid mixtures may form
shock sensitive explosives.[citation needed]
As with many strong oxidizers, contamination of parts with fuels have been implicated in rocketry accidents, where small quantities of nitrous/fuel
mixtures explode due to 'water hammer' like effects (sometimes called 'dieseling' — heating due to adiabatic compression of gases can reach
decomposition temperatures).[68] Some common building materials such as stainless steel and aluminium can act as fuels with strong oxidisers such as
nitrous oxide, as can contaminants, which can ignite due to adiabatic compression.[69]
|
|
|
Adas
National Hazard
Posts: 711
Registered: 21-9-2011
Location: Slovakia
Member Is Offline
Mood: Sensitive to shock and friction
|
|
Thanks for reply. And what about gaseous nitrous oxide? I think that N2O-based energetics (and rocket fuels) would be very interesting, because of
availability of N2O.
|
|
Formatik
National Hazard
Posts: 927
Registered: 25-3-2008
Member Is Offline
Mood: equilibrium
|
|
I briefly brought it up in this thread:
http://www.sciencemadness.org/talk/viewthread.php?tid=10650
I didn't mention it in that thread, but I had bubbled a lot of N2O through a small volume of methanol at standard atmospheric pressure, and it caused
hardly any to no significant mass increase.
Btw. gases dissolved in liquids that form curious detonable mixtures are the simple boranes. They can form shock-sensitive or detonable mixtures with
ethers, halocarbons, sulfoxides, etc. Some mixtures of the boranes involving organofluoroamines are air-sensitive and can outpower RDX in the trauzl
test (example in USP 4376665).
|
|
trezza
Harmless
Posts: 23
Registered: 23-5-2009
Location: Australia
Member Is Offline
Mood: ok... I guess
|
|
What about Nitrosamines? Cyclotrimethylene-Trinitrosamine (CTMTNA) Can be made by using a nitrite, most likely NaNo2 and dissolving it in Hydrochloric
acid which I believe creates a weak foamy blue solution of Nitrous Acid, then Hexamine is added to that and you have your product, I know it's not
"Nitrous Oxide" based per say but meh, it's something different.
If you've heard of it then you should probably know that this compound is quite carcinogenic... Then again what isn't these days?
[Edited on 21-11-2011 by trezza]
|
|
497
National Hazard
Posts: 778
Registered: 6-10-2007
Member Is Offline
Mood: HSbF6
|
|
There is a patent out there on the use of liquid N2O mixed with fuels. He claims decent VOD and low sensitivity. It is going to be a bit inconvenient
because it must be in a pressure vessel or very cold.
I wondered a few months ago how a N2O + C2F2H4 + Al/Mg powder mixture would perform. The C2F2H4 is dirt cheap in that "dust off" shit.
|
|
unionised
International Hazard
Posts: 5129
Registered: 1-11-2003
Location: UK
Member Is Offline
Mood: No Mood
|
|
Not altogether convenient, but it works.
http://pubs.acs.org/doi/abs/10.1021/ac00069a028
|
|