Charcoal

Charcoal

A soft, black form of carbon made by heating wood or bone in little air or no air. It burns easily and is used as a fuel.

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Industry/Domain: Chemistry
Category: Inorganic chemistry
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charcoal

Automotive; Automobile

The amorphous form of carbon obtained by the destructive distillation of animal or vegetable matter in a limited supply of air. In automotive use, it is used to purify air or ...

charcoal

Art history; Visual arts

Burned (and most often compressed) wood used for drawing.

charcoal

Art history; General art history

One of the most basic drawing materials, known since antiquity. It is usually made of thin peeled willow twigs which are heated without the presence of oxygen. This produces black ...

charcoal

Chemistry; Inorganic chemistry

A soft, black form of carbon made by heating wood or bone in little air or no air. It burns easily and is used as a fuel.

charcoal

Biotechnology; Genetic engineering

The black porous residue of partly burnt wood, bones, etc; a form of carbon. When treated to purify it and increase its adsorptive power, it is called activated charcoal (q.v.) in ...

charcoal

Energy; Energy efficiency

A material formed from the incomplete combustion or destructive distillation (carbonization) of organic material in a kiln or retort, and having a high energy density, being ...

yttrium oxide

Chemistry; Inorganic chemistry

Y 2 O 3 A yellowish powder, insoluble in water, soluble in dilute acids; used as television tube phosphor and microwave filters. Also known as yttria.

calcium sulfate

Chemistry; Inorganic chemistry

1. CaSO 4 A white crystalline salt, insoluble in water; used in Keene’s cement, in pigments, as a paper filler, and as a drying agent. 2. Either of two hydrated forms of the ...

magnesium bromide

Chemistry; Inorganic chemistry

MgBr 2 _6H 2 O Deliquescent, colorless, bitter-tasting crystals, melting at 172_C; soluble in water, slightly soluble in alcohol; used in medicine and in the synthesis of organic ...

silicon halide

Chemistry; Inorganic chemistry

A compound of silicon and a halogen; for example, SiBr 4 , Si 2 Br 6 , SiCl 4 , Si 2 Cl 6 , Si 3 Cl 8 , SiF 4 , Si 2 F 6 , SiI 4 , and Si 2 F 6 .

yttrium sulfate

Chemistry; Inorganic chemistry

Y 2 (SO 4 ) 3 _8H 2 O Reddish crystals that are soluble in concentrated sulfuric acid, slightly soluble in water; decomposes at 700_C; used as an analytical reagent.

calcium sulfide

Chemistry; Inorganic chemistry

CaS In pure form, white cubic crystals, slightly soluble in water; used as a base for luminescent materials. Also known as hepar calcies; sulfurated lime.