soot


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soot,

black or dull brown deposit of fine powder resulting from incomplete combustion of fuel of high carbon content, e.g., coal, wood, and oil. It consists chiefly of amorphous carbon and tarry substances that cause it to adhere to surfaces. Soot obtained from coal also contains sulfur and ammonia. See carbon blackcarbon black,
mixture of partially burned hydrocarbons. Carbon black is produced by partial combustion of natural gas. It is used as a black pigment for inks and paints, and is used in large amounts by the tire industry in the production of vulcanized rubber.
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soot

[su̇t]
(materials)
Impure black carbon with oily compounds obtained from the incomplete combustion of resinous materials, oils, wood, or coal.

soot

finely divided carbon deposited from flames during the incomplete combustion of organic substances such as coal
References in classic literature ?
Then she took her little lamp, and went into her cabin, and took off the fur skin, and washed the soot from off her face and hands, so that her beauty shone forth like the sun from behind the clouds.
But this time she kept away too long, and stayed beyond the half-hour; so she had not time to take off her fine dress, and threw her fur mantle over it, and in her haste did not blacken herself all over with soot, but left one of her fingers white.
Then he got hold of the fur and tore it off, and her golden hair and beautiful form were seen, and she could no longer hide herself: so she washed the soot and ashes from her face, and showed herself to be the most beautiful princess upon the face of the earth.
She came down from the chimney an hour later covered with soot, demanding restoratives.
Covered with soot, and dirt, and dust, and lime; their garments torn to rags; their hair hanging wildly about them; their hands and faces jagged and bleeding with the wounds of rusty nails; Barnaby, Hugh, and Dennis hurried on before them all, like hideous madmen.
The debilitated old house in the city, wrapped in its mantle of soot, and leaning heavily on the crutches that had partaken of its decay and worn out with it, never knew a healthy or a cheerful interval, let what would betide.
The donkey was in a state of profound abstraction: wondering, probably, whether he was destined to be regaled with a cabbage-stalk or two when he had disposed of the two sacks of soot with which the little cart was laden; so, without noticing the word of command, he jogged onward.
And into what a heaven--a vault as of hell, sooty black, from which soots descended!
As environmental regulations grow more stringent, soot sensors are expected to become necessary for monitoring diesel engine emissions.
Regeneration occurs when un-burnt or dirty fuel activates the engines computer and tells it to trap the resulting soot.
Not only does their system make ultra-light materials, it also helps save the environment by using up the soot from car engines.
Soot formation is a result of incomplete combustion, which is a sign of nonoptimal efficiency of the combustion process (Bladh et al.