Description

Tri(n-Octyl-n-Decyl) Trimellitate is a high-performance, high-molecular-weight trimellitate ester plasticizer. This compound is valued for its exceptional permanence, low volatility, and outstanding resistance to extraction and migration, making it a superior choice for demanding polymer applications. It is primarily sought by manufacturers in the polymer and specialty chemical industries for formulating durable, flexible PVC and other plastic products that require long-term stability under harsh conditions.

Application

• Primary Plasticizer for High-Temperature PVC: Used in wire and cable insulation, automotive interior components, and coated fabrics where low volatility and high-temperature resistance are critical.
• Specialty Polymer Formulations: Imparts excellent flexibility and durability to synthetic leather, tarpaulins, and roofing membranes.
• Sealants and Gaskets: Provides long-lasting flexibility and resistance to compression set in elastomeric seals and gaskets.
• Adhesives and Coatings: Acts as a permanent plasticizer in certain adhesive and coating systems to maintain flexibility over time.
• High-Performance Lubricants and Functional Fluids: Used as a base or additive in synthetic lubricants and high-temperature functional fluids.

Basic Information

Product Name	Tri(n-Octyl-n-Decyl) Trimellitate
CAS No.	67989-23-5
Molecular Formula	C57H108O6
Molecular Weight	889.5 g/mol (approx.)
Synonyms	TOTM (Trioctyl Trimellitate); Tri(octyl decyl) trimellitate; Trimellitic acid, trioctyl ester; 1,2,4-Benzenetricarboxylic acid, tris(octyl/decyl) ester; Tris(2-ethylhexyl) trimellitate (related isomer); Plasticizer TOTM; Uniplex 546; Jayflex TOTM
EINECS	268-122-2

Quality Control

Our Tri(n-Octyl-n-Decyl) Trimellitate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, color, acidity, and other critical physical-chemical properties. Certificates of Analysis (COA) are provided with every shipment to guarantee consistency, traceability, and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (APHA)	≤ 50
Acid Value (mg KOH/g)	≤ 0.10
Assay (GC)	≥ 99.0%
Water Content (KF)	≤ 0.05%
Refractive Index (n20D)	1.483 - 1.487
Specific Gravity (20/20°C)	0.990 - 0.995
Flash Point (COC)	≥ 260°C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.