Dioctyl phthalate (DOP) is a plastic processing aid and plasticizer, with the appearance of transparent liquid oil. It has excellent synthetical properties, favorable miscibility, high plasticization, low volatility, good insulation, and low migration.
DOP is the most commonly used PVC plasticizer. It is a colorless and high boiling-point liquid. DOP is highly stable under light and soluble in most solvents. It also has superb compatibility with cellulose nitrate.