Tar acids, brown-coal, crude Crude Phenols [An acidified alkaline extract of brown coal tar distillate. Composed primarily of phenol and phenol homologs.] An acidified alkaline extract of brown coal tar distillate. Composed primarily of phenol and phenol homologs. 648-117-00-1

Tar acids, brown-coal gasification Crude Phenols [A complex combination of organic compounds obtained from brown coal gasification. Composed primarily of C 6-10 hydroxy aromatic phenols and their homologs.] A complex combination of organic compounds obtained from brown coal gasification. Composed primarily of C6-10 hydroxy aromatic phenols and their homologs. 648-118-00-7

Tar acids, cresylic Distillate Phenols [A complex combination of organic compounds obtained from brown coal and boiling in the range of approximately 200°C to 230°C (392°F to 446°F). It contains chiefly phenols and pyridine bases.] A complex combination of organic compounds obtained from brown coal and boiling in the range of approximately 200°C to 230°C (392°F to 446°F). It contains chiefly phenols and pyridine bases. 648-128-00-1

Tar acids, coal, crude Crude Phenols [The reaction product obtained by neutralizing coal tar oil alkaline extract with an acidic solution, such as aqueous sulfuric acid, or gaseous carbon dioxide, to obtain the free acids. Composed primarily of tar acids such as phenol, cresols, and xylenols.] The reaction product obtained by neutralizing coal tar oil alkaline extract with an acidic solution, such as aqueous sulfuric acid, or gaseous carbon dioxide, to obtain the free acids. Composed primarily of tar acids such as phenol, cresols, and xylenols. 648-116-00-6

Tar acids, ethylphenol fraction Distillate Phenols [The fraction of tar acids, rich in 3- and 4-ethylphenol, recovered by distillation of low-temperature coal tar crude tar acids.] The fraction of tar acids, rich in 3- and 4-ethylphenol, recovered by distillation of low-temperature coal tar crude tar acids. 648-123-00-4

Tar acids, methylphenol fraction Distillate Phenols [The fraction of tar acid rich in 3- and 4-methylphenol, recovered by distillation of low-temperature coal tar crude tar acids.] The fraction of tar acid rich in 3- and 4-methylphenol, recovered by distillation of low-temperature coal tar crude tar acids. 648-120-00-8