Talk:Soot

"this use accounts for around 85% of the carbon black market" o_O what? Carbon black market? As in [Carbon black] [market], or [Carbon] [black market]? Slightly confusing.

Not really, its clearly "[Carbon black] [market]" from the context, i.e an article about 'carbon black'. StealthFox 05:01, 9 December 2005 (UTC)[reply]

Need to incorporate discussions of furnace black and thermal blacks, the most commercially viable forms of carbon black, much, much larger volume markets than lampblack.

Reflectivity

"Lampblack produced in this way is both the darkest and least reflective substances known."

Can that statement really be true?

Over the visible light portion of the spectrum, maybe. Check this out: http://www.tinmantech.com/assets/images/anneal6.JPG Now that's low reflectivity if'n I never seen it!

Lamp Black in Candy

Lamp black is NOT used as a coloring agent in candy. Lamp black is made from incompletely burned petroleum, and is considered to be carcinogenic. Licorice candy is colored with molasses, carmel, and a mixture of food colorings.Iepeulas 02:27, 12 June 2006 (UTC)[reply]

Agreed, removed...

I'm still confused as to whether soot is the stuff in the bottom of your fire when it's gone out.

It is not. That's ash, and consists primarily of unburned material. Soot consists of burned and re-formed fuel. Maury 22:00, 1 June 2007 (UTC)[reply]

Firelight is not blackbody radiation

Blackbody radiation is an idealization of a uniform substance with unit emissivity in thermal equilibrium. The conditions existing within a flame are far removed from those of thermal equilibrium. In particular, there is an intense intrinsic source of thermal energy in the form of the chemical reactions producing the flame. It is, therefore, incorrect to characterize the thermal radiation produced by soot in a flame as "blackbody radiation". Hetware 03:19, 21 August 2007 (UTC)[reply]