brown coal tar

См. также в других словарях:

• Coal tar — is a brown or black liquid of extremely high viscosity, which smells of naphthalene and aromatic hydrocarbons. Coal tar is among the by products when coal is carbonized to make coke or gasified to make coal gas. Coal tars are complex and variable …   Wikipedia

• Coal tar — Coal Coal (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or… …   The Collaborative International Dictionary of English

• Brown coal — Coal Coal (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or… …   The Collaborative International Dictionary of English

• Coal-tar creosote — Creosote Cre o*sote (kr[=e] [ o]*s[=o]t), n. [Gr. kre as, gen. kre ws, flesh + sw zein to preserve.] (Chem.) Wood tar oil; an oily antiseptic liquid, of a burning smoky taste, colorless when pure, but usually colored yellow or brown by impurity… …   The Collaborative International Dictionary of English

• coal tar creosote — creosote obtained by high temperature carbonization of bituminous coal; it is a brown to black, oily liquid, a mixture of aromatic hydrocarbons, tar acids, and tar bases; mainly used as a wood preservative. It is toxic by skin contact, ingestion …   Medical dictionary

• Coal gasification — is the process of producing coal gas, a type of syngas–a mixture of carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2) and water vapour (H2O)–from coal. Coal gas, which is a combustible gas, was traditionally used as a source of energy for …   Wikipedia

• Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …   Wikipedia

• Coal liquefaction — is the process of producing synthetic liquid fuels from coal. Contents 1 Methods 1.1 Pyrolysis and carbonization processes 1.2 Hydrogenation processes 1.3 …   Wikipedia

• Brown Lignite — Coal Coal (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or… …   The Collaborative International Dictionary of English

• Coal — (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or other… …   The Collaborative International Dictionary of English

• coal basins — Coal Coal (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or… …   The Collaborative International Dictionary of English