High Quality Content by WIKIPEDIA articles! Coal tar is a brown or black liquid of 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 mixtures of phenols, polycyclic aromatic hydrocarbons (PAHs), and heterocyclic compounds. It is a mixture of about 200 substances.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.