[The distillation fraction boiling in the range of approximately 181 o C to 186 o C (356 oF to 367 oF) from the crude bases obtained from the neutralized, acid-extracted base-containing tar fractions obtained by the distillation of bituminous coal tar.
Se compose d'hydrocarbures comportant majoritairement entre 11 et 30 atomes de carbone (C11-C30) et dont l'intervalle d'ébullition est compris approximativement entre 205 et 450 oC (entre 401 et 842 oF).]