Product Manual: Trioctyl Trimellitate (TOTM)
Chemical Name: Tris(2-ethylhexyl) Trimellitate
English Name: Tris(2-ethylhexyl) Trimellitate
CAS Number: 3319-31-1
Molecular Formula: C33H54O6
Structural Formula: Trimellitic acid as the core, with three 2-ethylhexyl ester groups.
I. Product Overview
TOTM is a high-performance heat-resistant plasticizer, synthesized through the esterification of trimellitic anhydride (TMA) and 2-ethylhexanol (2-EH). As an eco-friendly plasticizer, it is renowned for its superior heat resistance, low volatility, and electrical insulation properties. It is specifically designed for demanding engineering applications and serves as an upgraded alternative to traditional phthalate esters.
II. Key Features and Advantages
| Attribute | Parameter/Description
| Appearance | Transparent and viscous oil-like liquid (at room temperature)
| Density (25°C) | 0.990—1.000 g/cm³
| Flash Point | >245°C (Cleveland open cup) |
| Volatile Loss | ≤0.3% (24h/125°C, much lower than DOP's 5-10%) |
| Volume Resistivity | >1×10¹² Ω·cm (excellent electrical insulation) |
| Heat Resistance | Long-term service temperature: 105—125°C (short-term tolerance up to 150°C) |
| Migration Resistance | Extremely low tendency to migrate to adjacent PVC layers |
Applications:
Weather-resistant waterproofing membranes for buildings (in regions with high exposure to sunlight)
Industrial heat-resistant gaskets (heat-resistant sealing layers)
Backsheet films for solar panels (resistant to PID degradation)
4. Medical Devices Compliance: USP Class VI biocompatibility
Products:
Dialysis equipment tubing (high-temperature sterilization resistant)
Operating room flooring (chemical corrosion resistant)Medical packaging film
Applicable customers:
- Special cable manufacturers
- Automotive Tier 1 suppliers
- High-end building materials enterprises
- Medical equipment compliant producers
Request for Samples/Data Reports: Please contact us to obtain free TOTM samples/MSDS/COA.