Tinderless fire

[Preacher]

Ok... Since you mention it...

Potassium permanganate powder is a good one, (sold in chemists as a cure for athletes foot etc) but mixed with pure glycerine ...The more powder, the faster it reacts, so you can mix directly, and maintain a bit of control over its combustion time by adjusting the mixture (about 1 minute delay is pretty safe).. Petrol tends to burn too quickly for fire starting without tinder and controling the reaction is almost impossible, so I'd only use it as a last resort, or for offensive purposes

It's also useful to remember that ALL chemical reactions are affected by ambient temperature, so unless you know what your doing, they should be reserved for strict emergencies.