As international regulatory frameworks continuously tighten around chemical safety and product life cycles expand, choosing the right additives is critical. Plasticizer TOTM (Trioctyl trimellitate) stands as the ultimate high-performance, non-phthalate plasticizer for demanding vinyl applications. Chemically registered under CAS No. 3319-31-1, TOTM is an ester synthesized from trimellitic anhydride rather than phthalic anhydride. This structural difference classifies it completely as a non-phthalate chemical while granting it an exceptionally heavy molecular structure. It provides elite resistance to thermal volatilization, soap-water extraction, and oil migration, serving as the benchmark choice where ordinary alternatives drop out.
Technical Product Specifications
| Property / Parameter | Standard Specification |
|---|---|
| Chemical Name | Trioctyl trimellitate (TOTM / Tris(2-ethylhexyl) trimellitate) |
| CAS Number | 3319-31-1 |
| Molecular Formula | C33H54O6 |
| Appearance | Clear, transparent oily liquid, free of suspended matter |
| Ester Content (%) | ≥ 99.0% / ≥ 99.5% (Premium Electrical Grade) |
| Density at 20°C (g/cm³) | 0.987 – 0.994 g/cm³ |
| Color (APHA / Hazen) | ≤ 50 |
| Acid Value (mg KOH/g) | ≤ 0.10 |
Why Choose Our TOTM Plasticizer?
- ✓ Extreme Thermal Stability & Low Volatility: Possesses a very high boiling point and elite mass retention under extreme baking cycles, vastly outclassing DOP/DOTP. It satisfies the strict continuous heat tests required for high-grade wire insulation.
- ✓ Superb Anti-Migration & Extraction Resistance: Its branched trimellitate geometry hinders molecular movement. It resists extraction when exposed to oils, soapy water solvents, and adjacent acrylic polymers.
- ✓ Clean Non-Phthalate Profile: Does not contain ortho-phthalate structures. This makes it an ideal compound choice for applications requiring global non-toxic compliance certifications.
Primary Applications
TOTM is widely applied across sectors demanding maximum material durability, thermal retention, and strict environmental safety profiles:
High-Temperature Wires & Cables
An absolute industry standard for heat-resistant PVC wire insulation jacketing rated for 105°C and above, ensuring high electric volume resistivity.
Automotive Interiors
Perfect for anti-fogging dashboard skins, interior trim moldings, protective wire harnesses, and structural gaskets that see constant high sun exposure.
Medical Devices & Specialties
Widely formulated into non-toxic medical tubing, dialysis equipment components, blood bags, and precision consumer goods needing robust chemical extraction defense.
Quality Assurance & Global Compliance
As a leading international supplier, we ensure strict monitoring of all raw materials to safeguard your batch consistency. Our chemical refining complexes work under precise manufacturing protocols to meet rigorous global standards and support seamless customs entry:
- Advanced Analytical Quality Control: Every distribution batch of our TOTM liquid undergoes exhaustive validation—including high-resolution gas chromatography (GC) purity verification, color matching checks, and rigorous moisture controls—to preserve absolute structural properties.
- Comprehensive Document Support: Our eco-friendly material is fully backed by up-to-date tracking documentation, including multilingual GHS Safety Data Sheets (SDS), technical datasheets, Certificates of Analysis (CoA), and regulatory confirmations fully matching EU REACH and US TSCA parameters.
- Flexible Bulk Logistics: We provide diverse logistics delivery choices to match your factory setup, supplying raw material through stainless steel ISO tank containers, intermediate bulk containers (IBC drums, 1000kg), and standard steel drums (200kg) packed with nitrogen padding to block moisture.
⚠ Storage & Handling Guidelines
Maintaining correct warehouse controls ensures that the ester purity of your TOTM liquid remains locked over long storage durations. Proper moisture exclusion is the primary safeguard against slow acid value increases or hydrolytic reactions.
- • Shaded Warehousing: Keep containers stored inside a cool, dry, and well-ventilated enclosure. Ensure the material lines remain completely isolated from strong oxidizing chemical compounds, open spark risks, and direct high-heat conduits.
- • Seal Maintenance: Reseal bung caps and container flanges securely immediately after fluid dispensing to prevent atmospheric humidity and moisture from entering the drum head space and triggering ester degradation.
- • Inventory Shelf Life: Under appropriate, original sealed storage parameters, our premium TOTM holds a certified shelf life of 24 months from the manufacture date. Following a strict First-In, First-Out (FIFO) material distribution pattern is highly advised.
Frequently Asked Questions
What makes TOTM a true “non-phthalate” or “phthalate-free” plasticizer? +
Why is TOTM preferred over DOTP or DINP for 105°C cable insulation? +
Does using TOTM affect the processing parameters of vinyl plastisols? +
How does TOTM react when exposed to oils or chemical solvents? +
Partner with a Reliable Chemical Supplier
We provide premium-grade, high-purity Phthalate-Free Plasticizer TOTM liquid meticulously refined to meet your most demanding technical formulations. Available in ISO tanks, flexible bulk IBC containers (1000kg), and standard steel drums (200kg) under strict quality control to integrate seamlessly into your liquid dosing workflows.
