It offers excellent electrical insulation properties, low volatility, and good low-temperature flexibility — making it the preferred plasticiser for wire and cable insulation, flooring, wall coverings, and automotive interiors across the GCC and MENA market.
Technical specifications
| PARAMETER | SPECIFICATION | TEST METHOD |
|---|---|---|
| CAS Number | 68515-48-0 | — |
| Chemical Name | Di-Isononyl Phthalate (DINP) | — |
| HS Code | 2917.12 | — |
| Appearance | Clear colourless to pale yellow oily liquid | Visual |
| Purity | ≥ 99.0 % | GC |
| Density @ 20°C | 0.970 – 0.975 g/cm³ | ASTM D4052 |
| Viscosity @ 20°C | 75 – 95 mPa·s | ASTM D445 |
| Refractive Index @ 20°C | 1.484 – 1.487 | ASTM D1218 |
| Acid Value | ≤ 0.07 mg KOH/g | ASTM D1613 |
| Flash Point | ≥ 220°C | ASTM D93 |
| Volatility Loss @ 125°C, 24h | ≤ 1.5 % | ASTM D1203 |
| Water Content | ≤ 0.10 % | Karl Fischer |
| Shelf Life | 24 months sealed, 5–35°C | — |
Applications
- Flexible PVC Flooring & Vinyl Tiles — Standard plasticiser in PVC flooring, luxury vinyl tile (LVT), and vinyl composite tile (VCT) produced and installed across UAE commercial, hospitality, and residential buildings.
- PVC Cables & Wiring Insulation — Primary plasticiser for PVC wire and cable insulation and jacketing produced or imported for UAE and Saudi Arabia construction, industrial, and power distribution applications.
- Automotive Interior PVC Components — Used in PVC interior trim, dashboard compounds, door panels, and seating materials for vehicles assembled and sold in the GCC — DINP's low volatility prevents plasticiser migration to glass ("fogging") in hot car interiors.
- PVC Hoses, Tubing & Profiles — Standard plasticiser for flexible PVC hoses, irrigation tubing, and extruded profiles manufactured across UAE and Saudi Arabia industrial zones.
- Coated Fabrics & Tarpaulins — Used in PVC-coated fabrics for truck tarpaulins, industrial covers, and agricultural films across the GCC — DINP's high flash point (≥ 220°C) and good heat stability make it suitable for hot-lamination processes.
Key properties
- Higher molecular weight than DEHP/DOP — lower volatility and better permanence
- Excellent electrical insulation properties — standard for cable applications
- Good low-temperature flexibility (Tg depression)
- High flash point ≥ 220°C — preferred for cable extrusion processes
- Lower volatility loss at elevated temperature vs lower MW phthalates
- Good UV stability in PVC compounds with appropriate stabiliser package
- Compatible with all standard PVC stabiliser systems (Ca-Zn, Ba-Zn, organotin)
- Preferred DEHP/DOP replacement for most flexible PVC applications
Usage and recommendations
Typical loading in flexible PVC: 40–80 phr (parts per hundred resin) depending on flexibility requirement. For cables: 35–50 phr with Ca-Zn or organotin heat stabiliser. For flooring: 30–45 phr. DINP is not suitable for medical device PVC (use DEHP alternatives such as DINCH or TOTM for medical). For outdoor GCC applications (irrigation tubing, tarpaulins), include UV stabiliser and antioxidant package to prevent plasticiser migration and UV-induced PVC degradation.
Packaging
- 200 kg Steel Drums
- IBC 950–1,000 kg
- Bulk tanker (on request)
Storage and shelf life
Store in sealed drums at 5–35°C. DINP has excellent storage stability — shelf life 24 months in original sealed containers. Flash point ≥ 220°C — standard storage classification.