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Pitch is the main product obtained from coal tar distillation. It is composed of high molecular weight polycyclic aromatic hydrocarbons.
Naphthalene is a chemical compound with formula C10 H8. The two kinds of naphthalene concentrates that may be obtained from coal tar are known as crude and refined naphthalene.
These are fractions obtained during coal tar distillation. They are marketed directly or in blended formulations.