KonkreteRocketry
Hazard to Others
Posts: 165
Registered: 12-11-2012
Location: Dubai
Member Is Offline
Mood: No Mood
|
|
Combustion temperature for some pyro mix please ?
Yes,
Can someone please help me find the combustion temperature of those reactions please ?
Magnesium and Any nitrate. example KNO3
Aluminum and The same nitrate used for Magnesium, KNO3
Magnesium and any perchlorate, example KClO4
Aluminum and the same perchlorate, example KClO4
Also, can i have the Aluminum KNO3 reaction formula ? without sulfur.
Thanks soo much
|
|
|
Fantasma4500
International Hazard
Posts: 1677
Registered: 12-12-2012
Location: Dysrope (aka europe)
Member Is Offline
Mood: dangerously practical
|
|
i think you need to look up some physic formulas for heat generated per oxygen molecule made into something else and molar mass
i dont know what those formulas would look like, tho but hopefully somebody else would be able to pinpoint to something more specific
anyways, why would you need the reaction temperatures? (:
|
|
|
Agecer
Harmless
Posts: 5
Registered: 26-9-2012
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by KonkreteRocketry  | Yes,
Can someone please help me find the combustion temperature of those reactions please ?
Magnesium and Any nitrate. example KNO3
Aluminum and The same nitrate used for Magnesium, KNO3
Magnesium and any perchlorate, car dvd players example KClO4
Aluminum and the same perchlorate, example KClO4
Also, can i have the Aluminum KNO3 reaction formula ? without sulfur.
Thanks soo much |
You need to study for about reactions and then to try to implement it
[Edited on 13-2-2013 by Agecer]
|
|
|
bfesser
Resident Wikipedian
Posts: 2114
Registered: 29-1-2008
Member Is Offline
Mood: No Mood
|
|
<strong>KonkreteRocketry</strong>, in the future, try posting your absurd questions in the correct forum: <em><a
href="forumdisplay.php?fid=3">Energetic Materials</a></em>.
[Edited on 2/13/13 by bfesser]
|
|
|
Ral123
National Hazard
Posts: 735
Registered: 31-12-2011
Member Is Offline
Mood: No Mood
|
|
Obviously the mixtures with aluminium are expected to give somewhere around the boiling point of Al2O3. As for mixtures with carbon/organics, I think
that if you increase pressure and don't allow vaporisation, they can get pretty hot. NG doesn't have the specific energy of O2/C2H2 but it's
temperature of detonation is much higher because it(self confined) doesn't give off gasses to cool itself.
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by Ral123 | | Obviously the mixtures with aluminium are expected to give somewhere around the boiling point of Al2O3. |
Nonsense. What temperature is achieved depends enormously on conditions. Is the reaction heat contained (bomb reactor) or not? If it's not contained,
how much of the reaction enthalpy will leak away per second (power loss) and in what form (light or heat)? How fast do the reactions proceed
(granulometry of ingredients)? There is no set answer to these questions.
Stoichiometric mixtures of Al with chlorates, nitrates or sulphates with finely powered ingredients in 'open crucible' conditions, lead to molten
alumina being formed, at least in my conditions. Boiling is another 500 C above that.
[Edited on 13-2-2013 by blogfast25]
|
|
|
Poppy
Hazard to Others
Posts: 294
Registered: 3-11-2011
Member Is Offline
Mood: † chemical zombie
|
|
So there has been this question: as the gas expands it cools. Where does the heat goes to? So as if the gas expands to atmospheric pressure all the
bombs power will ultimately sum up as simple heat. Think of the work the pressure inflicts in surrounding air as negligible, and the work of the
contair as measurable.
I say that because in my country someone threw a homemade bomb in an attempt to murder a couple and the bomb's effect was mostly evidenced as burns
even though they were close to the bomb detonation site (the couple were inside a car).
Furthermore the gas leaves the device not simply at higher pressurem, it is also hot.
Considering how fast things get vapourized and how much energy is released you can think of an absurd energy wavefront.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
