A black, viscous tar made by the destructive distillation of coal (to make coke and town gas); it contains a great number of compounds including hydrocarbons and phenols; used in the preparation of medicated soap and shampoo, and industrially for the manufacture of very many products
Phenol can be obtained from coal tars by two methods : (a) Directly by separation of the product contained in this type of feedstock, at the rate of 0.5 to 1.5 per cent weight.
A dark brown to black, semi-solid hydrocarbon obtained as residue from the partial evaporation or distillation of coal
A dark brown to black, semi-solid hydrocarbon obtained as residue from the partial evaporation of distillation of coal tar
Coal tar is a thick black liquid made from coal which is used for making drugs and chemical products. coal tar dyes. A viscous black liquid containing numerous organic compounds that is obtained by the destructive distillation of coal and used as a roofing, waterproofing, and insulating compound and as a raw material for many dyes, drugs, and paints. a thick black sticky liquid made by heating coal without air, from which many drugs and chemical products are made
A thick, black, tarry liquid, obtained by the distillation of bituminous coal in the manufacture of illuminating gas; used for making printer's ink, black varnish, etc
a dark brown to black, semi-solid hydrocarbon obtained as residue from the partial evaporation or distillation of coal tar
A dark brown to black cementitious material produced by the destructive distillation of bituminous coal
It is a complex mixture from which many substances have been obtained, especially hydrocarbons of the benzene or aromatic series
A tar obtained from carbonization of coal, usually in coke ovens or retorts, containing several hundred organic chemicals
a tar formed from distillation of bituminous coal; coal tar can be further distilled to give various aromatic compounds
thick black liquid formed during the distillation of coal and used in making drugs and dyes
a dark brown to black colored, semi-solid hydrocarbon obtained as residue from the partial evaporation or distillation of coal tars Coal tar pitch is further refined to conform to the following roofing grade specifications
A viscous liquid mixture of hydrocarbon compounds, derived, along with coke, from the destructive distillation of coal
[ 'kOl ] (noun.) before 12th century. Middle English col, from Old English; akin to Old High German & Old Norse kol burning ember, Middle Irish gúal coal.