coal and tar coal a source of many,coal tar | chemical compound | BritannicaApr 15, 2016 . Many commercially important compounds are derived from coal tar. . arenes (in hydrocarbon: Source and synthesis); history of dyes (in dye:.coal and tar coal a source of many,About Coal Tar and Polycyclic Aromatic Hydrocarbons (PAHs)What is Crude Coal Tar and how does it differ from Refined Tar or Refined Coal Tar. . The use of this approach is essential to many PAH source determinations.
coal and tar coal a source of many