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Coal tar   /koʊl tɑr/   Listen
Coal tar

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

WordNet 3.0 © 2010 Princeton University

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"Coal tar" Quotes from Famous Books

... Aside from its use as fuel, upon which civilization is dependent, coal is a source of an endless variety of valuable products. It is the source of our illuminating gas, and ammonia is one of the products of the gas manufacture. From the coal also comes coal tar, the material from which such a long series of valuable materials, as aniline colours, carbolic acid, etc, is derived. The list of products which we owe to coal is very long, and the value of this material is hardly to be overrated. ...
— The Story Of Germ Life • H. W. Conn

... artificial dyes are less permanent than natural ones. This is seldom the case; as a matter of fact, some of the fastest and most valuable dyes are now made artificially and many are not procurable from vegetable coloring matters. Most of the cheaper dyes made from coal tar are fugitive; that is, they fade in sunlight or water or in both. They are often still further cheapened by being adulterated with salt, dextrine and the like. Such are the colors which are usually sold by the Chinese tienda keepers and ...
— Philippine Mats - Philippine Craftsman Reprint Series No. 1 • Hugo H. Miller

Words linked to "Coal tar" :   tar, naphthalene, pitch

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