Dioctyl Phthalate(DOP)

Performance and use

Dioctyl phthalate is a slightly odorous oily transparent liquid with molecular formula C24H38O4, molecular weight 390.5, relative density (d2020) 0.986, water solubility ≤0.01% (25 ° C). It is the most widely used plasticizer with good comprehensive properties and excellent compatibility with polyvinyl chloride, synthetic resin, nitrocellulose and rubber. Widely used in the processing of PVC various soft plastic products, such as film, artificial leather, wire, cable, molded products, etc.; widely used in rubber, paint and emulsifier industries, can improve the resilience of products, reduce compression and permanent Deformation, and no effect on the vulcanization of the rubber compound.

Technical indicators

Indicator name	Index
Indicator name	Superior grade	First grade	Qualified product
Exterior	An oily liquid with no visible impurities
Chroma, (Pt-Co) ≤	30	40	60
Purity, % ≥	99.5	99.0	99.0
Flash point (open cup method),℃ ≥	195	192	190
Density（ρ20），g/cm3	0.982-0.988
Acidity (based on phthalic acid), % ≤	0.010	0.015	0.030
Moisture, % ≤	0.1	0.15	0.15

Properties

Di-n-octyl phthalate appears as a clear liquid with a mild odor. Slightly less dense than water and insoluble in water. Hence floats on water. Flash point 430°F. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. As a liquid, can easily penetrate the soil and contaminate groundwater and nearby streams. Eye contact may produce severe irritation and direct skin contact may produce mild irritation. Used in the manufacture of a variety of plastics and coating products.

CAS No.

117-84-0

Formula

C24H38O4

Molecular Mass

390.55600

Exact Mass

390.27700

PSA

52.60000

Logp

6.72120