Is flour flammable

Answer 1

the large surface are to volume ratio of the flour dust means combustion caused by a tiny spark can travel quickly between the particles and create an explosion.

the large surface area provides a large area for reactant particle collision so the chance of a reaction are increased.

also, the pressure increases due to the thermal expansion of the gas caused by the spark so collisions then become more likely.

Answer 2

Regular white flour is not flammable, just tried.

You can actually use it in the kitchen in case of emergencies to extinguish flames.

The stories about grain silos exploding is caused by gas accumulation.

Answer 3

The reason why flour dust is explosive when mixed with air, is that it is composed of extremely small particles, which therefore can mix very thoroughly with air. The smaller the particles, the higher the ratio of surface area to volume, and chemical reactions occur at the surface, where the oxygen makes contact with the flour.

Answer 4

Yes, flour is flammable. When flour particles are dispersed in the air and come into contact with an ignition source, such as a flame, they can ignite and cause a fire or explosion. It's important to handle flour and other flammable powders with care to prevent accidents.

Answer 5

its a starch and burns easily