Description

Trimellitic Acid Tri-n-Propyl Ester is a specialized organic ester derived from trimellitic acid, serving as a high-performance plasticizer and intermediate. This compound is valued for its ability to impart excellent flexibility, low-temperature properties, and durability to polymer matrices. It is primarily sought by manufacturers in the plastics, coatings, and specialty chemical industries for formulating advanced materials with enhanced performance characteristics.

Application

• Primary Plasticizer for polyvinyl chloride (PVC), polyvinyl butyral (PVB), and other polymers requiring high solvating power and permanence.
• Polymer Modification Agent to improve the flexibility, elongation, and low-temperature crack resistance of engineering plastics and synthetic rubbers.
• Co-Additive in Specialty Coatings and adhesives, where it acts as a compatibilizer and processing aid to enhance film formation and adhesion.
• Chemical Intermediate in the synthesis of more complex esters, resins, and other value-added chemical products.
• Component in High-Temperature Lubricants and functional fluids due to its stability and viscosity properties.

Basic Information

Product Name	Trimellitic Acid Tri-n-Propyl Ester
CAS No.	1528-53-6
Molecular Formula	C18H24O6
Molecular Weight	336.38 g/mol
Synonyms	1,2,4-Benzenetricarboxylic Acid Tripropyl Ester; Tripropyl Trimellitate; Tri-n-Propyl Trimellitate; Trimellitic Acid Tripropyl Ester; Propyl Trimellitate; TPTM; Tris(propyl) Benzene-1,2,4-tricarboxylate; Tris(n-propyl) 1,2,4-Benzenetricarboxylate
EINECS	216-207-8

Quality Control

Our Trimellitic Acid Tri-n-Propyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is 15-25°C. Keep container tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 98.0%
Acidity (as Trimellitic Acid)	≤ 0.1%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	1.090 - 1.110
Refractive Index (20°C)	1.485 - 1.495

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