Also Called: Extract residues (coal), naphthalene oil, alk., naphthalene-low [Naphthalene Oil Extract Residue](Note: A complex combination of hydrocarbons remaining after the removal of naphthalene from alkali-washed naphthalene oil by a crystallization process. It is composed primarily of naphthalene and alkyl naphthalenes.);Extract residues (coal), naphthalene oil, alk., naphthalene-low;Naphthalene Oil Extract Residue;[A complex combination of hydrocarbons remaining after the removal of naphthalene from alkali-washed naphthalene oil by a crystallization process. It is composed primarily of naphthalene and alkyl naphthalenes.];[A complex combination of hydrocarbons remaining after the removal of naphthalene from alkali-washed naphthalene oil by a crystallization process. It is composed primarily of naphthalene and alkyl naphthalenes.];Extract residues (coal), naph thalene oil, alk., naphthalene-low;Naphthalene oil extract residue (A complex combination of hydro carbons remaining after the removal of naphthalene from a;[A complex combination of hydro carbons remaining after the removal of naphthalene from alkali-washed naphthalene oil by a crystallization process. It is composed primarily of naphthalene and alkyl naphthalenes.];Naphthalene oil extract residue (A complex combination of hydro carbons remaining after the removal of naphthalene from alkali-washed naphthalene oil by a crystallisation process. It is composed primarily of naphthalene and alkyl naphthalenes.)