Element
soot
soot [ soo t, soot ]
Definitions related to soot:
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A dark powdery deposit of unburned fuel residues, composed mainly of amorphous CARBON and some HYDROCARBONS, that accumulates in chimneys, automobile mufflers and other surfaces exposed to smoke. It is the product of incomplete combustion of carbon-rich organic fuels in low oxygen conditions. It is sometimes called lampblack or carbon black and is used in INK, in rubber tires, and to prepare CARBON NANOTUBES.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Black particulate matter formed as by-products of combustion or pyrolysis of organic (carbon-containing) materials, such as coal, wood, fuel oil, waste oil, paper, plastics and household refuse. Their chemical compositions and physical properties are highly variable and depend on the type of starting material and the combustion conditions. Chemically, soots vary with respect to their relative amounts of carbon and the types of organic and inorganic compounds adsorbed to the particles. Physically, soots vary with respect to their particle types, sizes, and shapes. The primary routes of potential human exposure to soots are inhalation, ingestion and dermal contact. The general population may be exposed to soots from fireplaces, furnaces, engine exhaust and particulate emissions from any combustion source. These are known to be human carcinogens. (NCI05)NCI ThesaurusU.S. National Cancer Institute, 2021
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