| 물질명 |
Residues (Coal Tar), Creosote Oil Distn.; Wash Oil Redistillate; [The Residue From The Fractional Distillation Of Wash Oil Boiling In The Approximate Range Of 270캜 To 330캜 (518캟 To 626캟). It Consists Predominantly Of Dinuclear Aromatic And Heterocyc |