Dioctyl Phthalate (DOP) CAS#117-81-7
High Solubility & Compatibility
DOP is insoluble in water, and freely soluble in ethanol, ether, chloroform, acetone and most organic solvents. It exhibits excellent compatibility with various resin materials, featuring good dispersion and blending performance.
Stable Performance
This product owns outstanding chemical stability and low volatility. It is not easy to decompose under normal temperature, with good cold resistance, heat resistance and weather resistance, maintaining stable comprehensive performance in long-term use.
Versatile Uses
It is a general-purpose primary plasticizer, widely used in PVC, synthetic rubber, cellulose and other materials. Commonly applied in plastic products, artificial leather, cables, films, rubber goods and coating industries.
Oily Liquid & Low Volatility
DOP is a colorless transparent oily liquid with mild odor. It has low volatility and good flexibility, requiring sealed storage and kept away from strong oxidants during handling.
Dioctyl Phthalate, with molecular formula C24H38O4, is a colorless transparent oily liquid. It is practically insoluble in water, soluble in most organic solvents and resins. With stable chemical properties, low volatility and excellent plasticizing effect, it is the most widely used general plasticizer for soft PVC products and polymer materials.
DOP Chemical Properties
| Item | Specification |
|---|---|
| Melting point | -55 °C (lit.) |
| Boiling point | 386 °C (lit.) |
| Density | 0.985 g/cm³ (25 °C) |
| Vapor density | 13.2 (vs air) |
| Refractive index | 1.485 ~ 1.487 |
| Storage temp | Store below +30°C, keep sealed |
| Solubility | Insoluble in water, soluble in ethanol, ether, chloroform |
| Form | Oily liquid |
| Color | Colorless transparent |
| Odor | Slight characteristic odor |
| pH | 6.0–7.5 (Neutral) |
| Water Solubility | <0.01 g/L (25 ℃) |
| Sensitivity | Non-hygroscopic |
| Stability | Stable at normal temperature; Incompatible with strong oxidizing agents |
| CAS DataBase Reference | 117-81-7 |
| NIST Chemistry Reference | Dioctyl phthalate (117-81-7) |
| EPA Substance Registry System | 1,2-Benzenedicarboxylic acid, dioctyl ester |
Safety Information
| Item | Specification |
|---|---|
| Hazard Codes | Xn |
| Risk Statements | 62-63 |
| Safety Statements | 36/37-45 |
| WGK Germany | 2 |
| RTECS | TI1050000 |
| TSCA | Yes |
| HS Code | 29173200 |
| UN Number | Non-UN |
This compound is mainly used as an excellent general plasticizer, providing good flexibility, ductility and processing performance for polymers. It is also used as softener, lubricant, dispersant and additive in rubber, coating, printing ink and fine chemical fields, with wide industrial application.
