dioxin, distillment, residue, filtrate, precipitate, rust, distillation, crystal, scale.
Finally the temperature is raised to 230'0, and is held there until no more distillate
Walls and floor were uncovered and roughly boarded with heat- cracked lumber; the stove was rusty and gave out a smell of warm iron, while a black distillate
had dripped from its pipe.
A black distillate
had trickled down from a bend in it, and stained the floor.