foxyrick
British Pork
- Joined
- Dec 26, 2006
- Messages
- 2,254
When I was a kid, we used to make smoke bombs out of saltpeter and sugar. While something like this might be good for signaling, my point in mentioning it in this thread is that they burned hot and furious. I would think a film canister of gun powder or something similar might work just as well for a must have fire.
Who knows what the chemistry is behind a road flare? Perhaps it's possible to make a smaller version. Or perhaps all this is a bit too dangerous.
I used to add some (just a few) magnesium turnings - makes a nice firework when wrapped in a carboard tube and excellent fire lighter! Note Well: Magnesium Turnings, not powder. Powder makes more of an explosive!
Another good mix is potassium permanganate and sugar - lights remarkable easily from a lens in sunlight as well. The darker colour of the KMnO4 absorbs the energy from the focussed light.
As with all of these mixtures, the finer the powders, better mixed and proper proportions, the faster and hotter the reaction.
Main problem with these types of mixture (RedOx - Reduction/Oxidation mixtures, like black powder) is the slightest bit of damp and they are useless.
Also, as an ex science teacher with a particular bent for energetic chemistry, I know a *lot* of possible mixtures. But...
I wouldn't carry any ready-mixed improvised incendiary in a survival kit.
It's way too dodgy in my opinion. Some of these mixtures, even the simple sugar-based ones, can be ignited too easily by friction or heat. Even by simply mixing too large a batch at once! (I know, I've fallen foul of that one mixing a batch to get a large bonfire of wet wood going - was nearly very nasty.) Sometimes a tiny drop of water in the mix will cause a reaction in solution that gives enough heat to ignite the remaining dry mixture. Imagine that in your pocket/belt kit.
They are nice to know how to make in case you need them and have the materials, but I would stick to more conventional methods in my kits.
Just my two cents. I'll get off my soapbox now
