IS Formaldehyde really Flammable why it won't ignite?

[w0lvez]

Nowadays a lot of things are labeled flammable but it won't even ignite on flame whether it's liquid or vapor. One good example is Formaldehyde it says it is flammable in liquid and vapor but won't ignite by exposing it to fire using a lighter until the plastic melted so I tried to use torch but nothing happens. It has a flammability rating of 2 meaning Materials must be moderately heated or exposed to relatively high ambient temperatures before they will ignite. If torch can't ignite it what will? Some other examples are the products used to clean cars. The marking says it's extremely flammable but even extinguish the fire. :roll: :roll:

 

[silversaddle1]

Once atomized, you'd be suprised what will burn.

 

[stihl88]

Cooking Flour is highly volatile once low gravity particles are emitted in to the air.
It is vitally important that flour mills eliminate all sources of heat and ignition
from around their factory.

 

[butcher]

even metal powders can be.
try dropping a spark on Iron bar what you say no reaction? now drop a spark on steel wool (iron) and with a little wind (oxygen) you have a hot fire. some metal powders can become explosively reactive.

some things are realitive?

 

[dub8]

like termite

 

[Harold_V]

like termite

One is bad, but many are worse. Termites love wood.

On the other hand, I can't help but wonder if you're not talking about Thermite?

Harold

 

[butcher]

Fine metal powders can burn or oxidize violently, or even explode if conditions are favorable. Some of the metals higher in the series can react violently with just moisture in the air, and so are stored under mineral oil.

Thermite and pyrotechnic powders, or metal salts is not the only things metal, that are flammable.

http://www.google.com/search?sclient=psy&hl=en&site=&source=hp&q=flamability+of+metal+powders&aq=f&aqi=&aql=&oq=&gs_rfai=&pbx=1&emsg=NCSR&noj=1&ei=LyApTbKnKpCssAPx4cCJBw

http://www.ehs.pitt.edu/assets/docs/combustible-metals.pdf

http://www.sciencelab.com/msds.php?msdsId=9926594

http://www.nclabor.com/osha/etta/indguide/ig43.pdf

depending on conditions most things we normally would not think would burn can burn.

Heck my old pickup I drive is burning right now just slowly burning, that Iron is oxidizing a little more as time goes on slowly decomposing to Iron oxides.