is distillation fraction
between kerosene and gas
oil, widely used as a solvent oil in
gas absorption processes (see absorber oil),
as a lubricant for the rolling of metal foil, and as a base oil in many
specialty formulations. Mineral seal oil takes its name — not from any
sealing function — but from the fact that it originally replaced oil derived
from seal blubber for use as an illuminant for signal lamps and lighthouses.