Diisononyl Phthalate (DINP) is a widely used general-purpose plasticizer with low volatility, high durability, and good heat resistance. It is ideal for flexible PVC applications where long service life and processing stability are important.
| Property | Typical Value |
|---|---|
| Chemical Formula | C26H42O4 |
| CAS No. | 28553-12-0 / 68515-48-0 |
| Appearance | Clear, oily liquid |
| Purity | ≥ 99.0% |
| Density (20 °C) | 0.972–0.980 g/cm³ |
| Flash Point | > 210 °C |
| Viscosity (20 °C) | 70–90 mPa·s |
| Refractive Index | 1.485 ± 0.003 |
| Need | DINP Solution |
|---|---|
| Long-term flexibility in outdoor products | DINP provides excellent weatherability and aging resistance |
| Less odor in final product | DINP has lower odor profile than DOP |
| Minimize fogging in automotive uses | DINP shows low volatility and high fog resistance |
| Want a safer alternative to DOP | DINP meets regulatory compliance in many regions |
Q1: Is DINP suitable for food contact applications?
In some regions, DINP is restricted for direct food contact. Check local regulations before use.
Q2: Can it fully replace DOP in formulations?
Yes, DINP is often used as a direct replacement in flexible PVC formulations.
Q3: Is DINP environmentally friendly?
DINP has lower environmental impact than traditional phthalates but is not fully bio-based.
