I Chemical formula and molecular weight
- Chemical formula:C24H38O4
- Molecular weight:426.68
- CAS No.:117-81-7
II Properties and uses
- Colourless, transparent oily liquid, b.p.386°C, viscosity 80 c.p.(20°C), refractive index 1.483~1.486(20°C).
- One of the most useful plasticizer, it shows properties of the plasticizing efficiency, low volatility, light-resistant, water-endurance, weathering resisting, good electrical functions, and fine softening effect, etc..
- Extensively used in processing electrical wires and cables, artificialleathers, films and moulding plastics from polyvinyl chloride, vinyl chloride copolymers, and cellulosic resins.
III Quality standard

Specification, Super Grade, First Grade, Qualified Grade
Colourity(Pt-Co), code No. =, 30, 40, 60
Acidity(calculated as phthalic acid), %=, 0.010, 0.015, 0.030
Density (20°C), g/cm3, 0.985±0.003
Purity, % =, 99.5, 99.0
Flash point, °C =, 196, 192
Water content, % =, 0.10, 0.15
Volume resistivity, O-cm =, 1.0×109, /
IV Package and storage
- Packed in iron drum, net weight 200 kg/drum.
- Stored at dry, shady, ventilated place. Prevented from collision and sunrays, rain-attack during handling and shipping.
- Met the high hot and clear fire or contact the oxidizing agent, caused the burning danger.