Library / English Dictionary

COAL TAR

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A tar formed from distillation of bituminous coal; coal tar can be further distilled to give various aromatic compounds

Classified under:

Nouns denoting substances

Hypernyms ("coal tar" is a kind of...):

pitch; tar (any of various dark heavy viscid substances obtained as a residue)

Meronyms (substance of "coal tar"):

naphthalene (a white crystalline strong-smelling hydrocarbon made from coal tar or petroleum and used in organic synthesis and as a fumigant in mothballs)

Credits

 Context examples: 

Dibenz[a,j]acridine is primarily found in gasoline exhaust, petroleum refinery incinerator emissions, coal combustion emissions, cigarette smoke and coal tar pitch.

(Dibenz[a,j]acridine, NCI Thesaurus)

Any of a group of isomeric compounds that are monomethyl derivatives of pyridines derived from coal tar, horse urine, and bone oil.

(Picoline Compound, NCI Thesaurus)

Benz[a,h]acridine is primarily found in petroleum refinery incinerator emissions, coal combustion emissions, cigarette smoke and coal tar pitch.

(Dibenz[a,h]acridine, NCI Thesaurus)

A complex mixture of dusts, vapors and gases that contains various known or potential carcinogens, including polycyclic aromatic hydrocarbons, formaldehyde, nitrosamines, coal tar and coal tar pitch, cadmium, benzene and arsenic compounds.

(Coke Oven Emission, NCI Thesaurus)

An aromatic hydrocarbon in coal tar, allied to naphthalene and anthracene.

(Chrysene, NCI Thesaurus)

Dibenzo(a,h)anthracene is primarily found in gasoline exhaust, tobacco smoke, coal tar, soot and certain food products, especially smoked and barbecued foods.

(Dibenzo[a,h]anthracene, NCI Thesaurus)

Benz(a)anthracene is primarily found in gasoline and diesel exhaust, tobacco and cigarette smoke, coal tar and coal tar pitch, coal combustion emissions, charcoal-broiled foods, amino acids, fatty acids and carbohydrate pyrolysis products, wood and soot smoke, and creosote, asphalt and mineral oils.

(Benz[a]anthracene, NCI Thesaurus)

A shiny, dark brown to black by-product of the distillation of coal tars and contains various polycyclic aromatic hydrocarbons and their methyl and polymethyl derivatives, as well as hetero-nuclear compounds.

(Coal Tar Pitch, NCI Thesaurus)

Coal tar is a complex mixture of organic substances, including benzene, phenols, sulfur, aniline, toluene, xylene, naphthalene, anthracene and phenanthrene.

(Coal Tar, NCI Thesaurus)

Coal tar pitch is mainly used as a binder for aluminum smelting electrodes, but is also used in coating surfaces, in roofing materials, to impregnate and strengthen refractory brick and is used to produce pitch coke.

(Coal Tar Pitch, NCI Thesaurus)