Soot ( /ˈsʊt/) is impure carbon particles resulting from the incomplete combustion of hydrocarbons. It is more properly restricted to the product of the gas-phase combustion process but is commonly extended to include the residual pyrolyzed fuel particles such as coal, cenospheres, charred wood, petroleum coke, and so on, that may become airborne during pyrolysis and that are more properly identified as cokes or chars.
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Famous quotes containing the word soot:
“So they took soot from the kiln, and stood before Pharaoh, and Moses threw it in the air, and it caused festering boils on humans and animals.”
—Bible: Hebrew, Exodus 9:10.
“When my mother died I was very young,
And my father sold me while yet my tongue,
Could scarcely cry weep weep weep weep.
So your chimneys I sweep & in soot I sleep.”
—William Blake (1757–1827)