Tar, wood A complex combination of organic compounds separated after condensation of the vapors from the destructive distillation of wood.

Tar, pine A product obtained from the destructive distillation of the wood of Pinus, Pinaceae.

Tar oils The volatile oil obtained by the distillation of wood tar. Composed primarily of phenolic substances and hydrocarbons. Exact composition varies with production methods and wood source.

Tar, coal Coal tar [The by-product from the destructive distillation of coal. Almost black semisolid. A complex combination of aromatic hydro-carbons, phenolic compounds, nitrogen bases and thiophene.] The by-product from the destructive distillation of coal. Almost black semisolid. A complex combination of aromatic hydrocarbons, phenolic compounds, nitrogen bases and thiophene. 648-081-00-7

Tar, coal, high-temp., high-solids Coal Tar Solids Residue [The condensation product obtained by cooling, to approximately ambient temperature, the gas evolved in the high temperature (greater than 700 °C (1292 °F)) destructive distillation of coal. Composed primarily of a complex mixture of condensed ring aromatic hydrocarbons with a high solid content of coal-type materials.] The condensation product obtained by cooling, to approximately ambient temperature, the gas evolved in the high temperature (greater than 700°C (1292°F)) destructive distillation of coal. Composed primarily of a complex mixture of condensed ring aromatic hydrocarbons with a high solid content of coal- and coke-type materials. 648-062-00-3

Tar, wood, ext. An ether-free product obtained following repeated ether extraction of wood tar.