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Trioctyl Trimellitate (TOTM) Plasticizer is a high-performance trimellitate ester plasticizer used mainly in PVC and other polymers where high-temperature durability and low volatility are required, and Trioctyl Trimellitate (TOTM) Plasticizer is valued for excellent permanence, low migration, and strong heat-aging resistance.
Trioctyl Trimellitate (TOTM) Plasticizer is widely used in wire and cable compounds, automotive interior parts, medical and flexible PVC products, and specialty elastomer formulations, and Trioctyl Trimellitate (TOTM) Plasticizer performance depends on ester purity, alcohol chain distribution, compatibility with the polymer, and the processing and service temperature profile.
Trioctyl Trimellitate (TOTM) Plasticizer is typically supplied as a clear to pale yellow viscous liquid, and Trioctyl Trimellitate (TOTM) Plasticizer is handled as a low-volatility plasticizer with good processing stability, but standard industrial hygiene practices are still required.
CAS Number: 3319-31-1
EC Number: 222-020-0
Molecular Formula: C33H54O6
Molecular Weight: 546.78 g/mol
Synonyms: Trioctyl Trimellitate (TOTM) Plasticizer, TOTM, Trioctyl Trimellitate, Tri(2-ethylhexyl) Trimellitate, Tris(2-ethylhexyl) Trimellitate, Trimellitic Acid Trioctyl Ester, Trimellitate Plasticizer, High Temperature Plasticizer TOTM, PVC Plasticizer TOTM, Low Migration Plasticizer, Trimellitate Ester Plasticizer, Trioctyl Trimellitate Ester, Trioctyl Trimellitate Plasticizer, Trioctyl Trimellitate, TOTM Plasticizer, TOTM, Tri-2-ethylhexyl Trimellitate, Tris(2-ethylhexyl) Trimellitate, Tris(2-ethylhexyl) Benzene-1,2,4-tricarboxylate, 1,2,4-Benzenetricarboxylic Acid Tris(2-ethylhexyl) Ester, Trimellitic Acid Tris(2-ethylhexyl) Ester, Tris(2-ethylhexyl) Trimellitate Plasticizer, Triethylhexyl Trimellitate, Tri(2-ethylhexyl) Trimellitate, Tris(ethylhexyl) Trimellitate, Octyl Trimellitate, Triisooctyl Trimellitate, Triisononyl Trimellitate, Trimellitate Plasticizer, Trimellitic Ester Plasticizer, High Temperature Plasticizer TOTM, Heat Resistant Plasticizer TOTM, Low Volatility Plasticizer TOTM, PVC Plasticizer TOTM, Vinyl Plasticizer TOTM, Cable Grade TOTM, Wire and Cable Plasticizer TOTM, Medical Grade TOTM, Food Contact Grade TOTM, Industrial Grade TOTM, Technical Grade TOTM, High Purity TOTM
APPLICATIONS
Trioctyl Trimellitate (TOTM) Plasticizer is used in wire and cable PVC insulation to provide long-term flexibility and heat resistance under elevated operating temperatures.
Trioctyl Trimellitate (TOTM) Plasticizer is incorporated into cable jacketing compounds to reduce plasticizer loss and maintain mechanical performance over time.
Trioctyl Trimellitate (TOTM) Plasticizer is used in automotive wire harness compounds where low volatility and high temperature durability are required.
Trioctyl Trimellitate (TOTM) Plasticizer is used in high-temperature PVC compounds to reduce migration and maintain softness during heat aging.
Trioctyl Trimellitate (TOTM) Plasticizer is incorporated into flexible PVC sheets and films where low fogging and high permanence are desired.
Trioctyl Trimellitate (TOTM) Plasticizer is used in under-hood or high-heat industrial components in selected polymer systems.
Trioctyl Trimellitate (TOTM) Plasticizer is used in automotive interior parts to reduce fogging and maintain long-term flexibility and appearance.
Trioctyl Trimellitate (TOTM) Plasticizer is incorporated into dashboards, trim, and interior skins in selected formulations to improve permanence and odor stability.
Trioctyl Trimellitate (TOTM) Plasticizer is used in upholstery and synthetic leather in selected applications for durable softness and low migration.
Trioctyl Trimellitate (TOTM) Plasticizer is used in medical-grade flexible PVC in selected applications where plasticizer permanence and low extraction are important.
Trioctyl Trimellitate (TOTM) Plasticizer is incorporated into tubing, bags, and medical films in selected cases where compatibility and regulatory compliance are met.
Trioctyl Trimellitate (TOTM) Plasticizer is used in food-contact and sensitive applications in selected cases where approvals and compliance requirements are satisfied.
Trioctyl Trimellitate (TOTM) Plasticizer is valued because Trioctyl Trimellitate (TOTM) Plasticizer provides excellent permanence, low volatility, and strong heat-aging resistance, supporting long service life in demanding flexible polymer applications.
Trioctyl Trimellitate (TOTM) Plasticizer is used as a high-performance plasticizer for PVC formulations.
Trioctyl Trimellitate (TOTM) Plasticizer improves flexibility in vinyl compounds.
Trioctyl Trimellitate (TOTM) Plasticizer is used in heat-resistant PVC products.
Trioctyl Trimellitate (TOTM) Plasticizer supports long-term performance under elevated temperatures.
Trioctyl Trimellitate (TOTM) Plasticizer is used in wire and cable insulation.
Trioctyl Trimellitate (TOTM) Plasticizer improves thermal aging resistance in electrical cable compounds.
Trioctyl Trimellitate (TOTM) Plasticizer is used in automotive cable applications.
Trioctyl Trimellitate (TOTM) Plasticizer helps maintain flexibility in demanding engine-area environments.
Trioctyl Trimellitate (TOTM) Plasticizer is used in appliance wiring compounds.
Trioctyl Trimellitate (TOTM) Plasticizer supports durability in heat-exposed electrical insulation.
Trioctyl Trimellitate (TOTM) Plasticizer is used in high-temperature PVC sheathing.
Trioctyl Trimellitate (TOTM) Plasticizer reduces plasticizer loss during prolonged heat exposure.
Trioctyl Trimellitate (TOTM) Plasticizer is used in medical-grade PVC applications where suitable grades are selected.
Trioctyl Trimellitate (TOTM) Plasticizer improves flexibility in selected tubing and film systems.
Trioctyl Trimellitate (TOTM) Plasticizer is used in blood bag and medical tubing development.
Trioctyl Trimellitate (TOTM) Plasticizer supports low volatility and reduced migration in compatible formulations.
Trioctyl Trimellitate (TOTM) Plasticizer is used in food-contact vinyl applications where regulations allow.
Trioctyl Trimellitate (TOTM) Plasticizer helps provide stable flexibility in packaging-related PVC materials.
Trioctyl Trimellitate (TOTM) Plasticizer is used in vinyl film formulations.
Trioctyl Trimellitate (TOTM) Plasticizer improves softness and handling properties in flexible films.
Trioctyl Trimellitate (TOTM) Plasticizer is used in PVC sheet production.
Trioctyl Trimellitate (TOTM) Plasticizer supports dimensional stability and long-term flexibility.
Trioctyl Trimellitate (TOTM) Plasticizer is used in synthetic leather formulations.
Trioctyl Trimellitate (TOTM) Plasticizer improves softness, durability, and heat resistance in coated fabrics.
Trioctyl Trimellitate (TOTM) Plasticizer is used in automotive interior materials.
Trioctyl Trimellitate (TOTM) Plasticizer helps reduce fogging in vehicle cabin applications.
Trioctyl Trimellitate (TOTM) Plasticizer is used in dashboard skins and interior trim compounds.
Trioctyl Trimellitate (TOTM) Plasticizer supports low volatility and good surface stability.
Trioctyl Trimellitate (TOTM) Plasticizer is used in floor covering materials.
Trioctyl Trimellitate (TOTM) Plasticizer improves flexibility and wear performance in vinyl flooring.
Trioctyl Trimellitate (TOTM) Plasticizer is used in wall covering formulations.
Trioctyl Trimellitate (TOTM) Plasticizer supports durable and flexible decorative vinyl layers.
Trioctyl Trimellitate (TOTM) Plasticizer is used in coated textile applications.
Trioctyl Trimellitate (TOTM) Plasticizer improves flexibility and heat stability in coated fabrics.
Trioctyl Trimellitate (TOTM) Plasticizer is used in conveyor belt compounds.
Trioctyl Trimellitate (TOTM) Plasticizer helps maintain performance under mechanical and thermal stress.
Trioctyl Trimellitate (TOTM) Plasticizer is used in gasket and seal formulations.
Trioctyl Trimellitate (TOTM) Plasticizer supports flexibility and compression performance in PVC seals.
Trioctyl Trimellitate (TOTM) Plasticizer is used in hose and tubing compounds.
Trioctyl Trimellitate (TOTM) Plasticizer improves resistance to extraction and plasticizer migration.
Trioctyl Trimellitate (TOTM) Plasticizer is used in plastisol formulations.
Trioctyl Trimellitate (TOTM) Plasticizer supports stable viscosity and durable fused PVC performance.
Trioctyl Trimellitate (TOTM) Plasticizer is used in sealants and caulks.
Trioctyl Trimellitate (TOTM) Plasticizer helps improve flexibility and long-term aging resistance.
Trioctyl Trimellitate (TOTM) Plasticizer is used in adhesive formulations.
Trioctyl Trimellitate (TOTM) Plasticizer improves flexibility and compatibility in selected polymer systems.
Trioctyl Trimellitate (TOTM) Plasticizer is used in specialty rubber and elastomer compounds.
Trioctyl Trimellitate (TOTM) Plasticizer supports processing and flexibility in compatible elastomeric materials.
DESCRIPTION
Trioctyl Trimellitate (TOTM) Plasticizer is the triester of trimellitic acid with octyl alcohols, most commonly 2-ethylhexanol, and this bulky triester structure gives Trioctyl Trimellitate (TOTM) Plasticizer very low volatility and low migration.
Trioctyl Trimellitate (TOTM) Plasticizer plasticizes PVC by reducing intermolecular forces and increasing chain mobility, and compared with many phthalate plasticizers, TOTM generally shows improved permanence at elevated temperatures.
Trioctyl Trimellitate (TOTM) Plasticizer can reduce fogging in automotive interiors because it is less likely to volatilize and condense on surfaces, and this supports improved long-term appearance.
Trioctyl Trimellitate (TOTM) Plasticizer is typically compatible with PVC and many vinyl copolymers, but formulation balance with stabilizers and fillers determines final mechanical and thermal performance.
Trioctyl Trimellitate (TOTM) Plasticizer can increase compound viscosity compared with lighter plasticizers, so processing temperature and shear conditions are optimized to maintain throughput.
Trioctyl Trimellitate (TOTM) Plasticizer should be used according to applicable regulations and good industrial hygiene practices for the target market and end-use category.
Trioctyl Trimellitate (TOTM) Plasticizer should be stored in tightly closed containers and protected from contamination to maintain consistent color and acid value.
Trioctyl Trimellitate (TOTM) Plasticizer should be kept away from strong oxidizers and excessive heat to minimize degradation.
Trioctyl Trimellitate (TOTM) Plasticizer should be handled with clean transfer equipment and good housekeeping because viscous liquids can create slip hazards.
Trioctyl Trimellitate (TOTM) Plasticizer is a trimellitate ester plasticizer.
Trioctyl Trimellitate (TOTM) Plasticizer is widely used in flexible PVC applications.
Trioctyl Trimellitate (TOTM) Plasticizer is valued for low volatility and high thermal stability.
Trioctyl Trimellitate (TOTM) Plasticizer is commonly abbreviated as TOTM.
Trioctyl Trimellitate (TOTM) Plasticizer is typically supplied as a clear to pale yellow oily liquid.
Trioctyl Trimellitate (TOTM) Plasticizer has a high molecular weight compared with many general-purpose plasticizers.
Trioctyl Trimellitate (TOTM) Plasticizer provides durable flexibility in demanding vinyl formulations.
Trioctyl Trimellitate (TOTM) Plasticizer shows good resistance to extraction and migration.
Trioctyl Trimellitate (TOTM) Plasticizer is selected when long-term aging performance is required.
Trioctyl Trimellitate (TOTM) Plasticizer helps reduce plasticizer loss during heat exposure.
Trioctyl Trimellitate (TOTM) Plasticizer can improve fogging performance in automotive interiors.
Trioctyl Trimellitate (TOTM) Plasticizer is compatible with many PVC resin systems.
Trioctyl Trimellitate (TOTM) Plasticizer performance depends on formulation design, resin type, filler loading, and processing conditions.
Trioctyl Trimellitate (TOTM) Plasticizer may be blended with other plasticizers to balance cost and performance.
Trioctyl Trimellitate (TOTM) Plasticizer can provide better permanence than many lower-molecular-weight plasticizers.
Trioctyl Trimellitate (TOTM) Plasticizer is useful where heat resistance and low migration are important.
Trioctyl Trimellitate (TOTM) Plasticizer should be stored in tightly closed containers.
Trioctyl Trimellitate (TOTM) Plasticizer should be protected from excessive heat and contamination.
Trioctyl Trimellitate (TOTM) Plasticizer should be handled with suitable industrial hygiene practices.
Trioctyl Trimellitate (TOTM) Plasticizer should be used according to supplier safety data and regulatory requirements.
Trioctyl Trimellitate (TOTM) Plasticizer quality may be defined by color, acidity, ester content, volatility, and moisture level.
Trioctyl Trimellitate (TOTM) Plasticizer is valued in wire, cable, automotive, medical, and specialty vinyl applications.
Trioctyl Trimellitate (TOTM) Plasticizer provides a balance of flexibility, permanence, and thermal durability.
Trioctyl Trimellitate (TOTM) Plasticizer is an important specialty plasticizer for high-performance PVC compounds.
Trioctyl Trimellitate (TOTM) Plasticizer is selected when flexible vinyl materials require long service life and stable performance.
PROPERTIES
Chemical Formula: C33H54O6
Molecular Weight: 546.78 g/mol
Common Name: Trioctyl Trimellitate (TOTM)
Chemical Type: Trimellitate ester plasticizer; high-temperature plasticizer
Appearance: Clear to pale yellow viscous liquid
Odor: Mild characteristic odor
Solubility: Insoluble in water; soluble in many organic solvents; compatible with PVC and many polymers
Viscosity: High; temperature dependent
Volatility: Very low compared with many general-purpose plasticizers
Migration: Low; good permanence and extraction resistance
Density: ~0.98–0.99 g/cm³ (typical at 20°C; grade dependent)
Flash Point: Typically >200°C (typical; grade dependent)
Stability: Stable under normal storage; good heat-aging performance in polymers
Storage Temperature: 10–30°C, tightly closed, dry
Shelf Life: Typically 24–60 months in original sealed packaging (supplier dependent)
FIRST AID
Inhalation:
Move to fresh air if mists are inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing aerosols during spraying or heated processing that generates mist.
Skin Contact:
Wash with soap and water after contact.
Remove contaminated clothing and wash before reuse.
Seek medical advice if irritation develops or persists.
Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists.
Ingestion:
Rinse mouth with water and seek medical attention if discomfort occurs.
Seek medical attention if a significant amount is swallowed.
Never give anything by mouth to an unconscious person.
Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care as needed.
HANDLING AND STORAGE
Handling:
Use appropriate PPE including gloves and safety glasses for bulk handling.
Avoid splashing into eyes and prolonged skin contact.
Use clean transfer equipment and control spills because viscous liquids can create slip hazards.
Ventilation:
Use general ventilation for normal handling.
Use local exhaust if heating generates mists.
Avoid aerosol formation in enclosed spaces without adequate airflow.
Storage:
Store in tightly closed containers in a cool, dry place.
Protect from contamination, strong oxidizers, and excessive heat.
Maintain clean packaging integrity to preserve color and low acid value.
Spill and Leak Procedures:
Contain spill and absorb with inert material.
Clean residue promptly because plasticizer films can be slippery.
Dispose of waste according to local regulations and facility procedures.
Handling Precautions:
Optimize processing conditions because TOTM viscosity can affect mixing, extrusion, and plastisol behavior compared with lighter plasticizers.
Verify end-use compliance because approvals for medical or food-contact uses depend on grade and regulatory region.
Rotate stock using FIFO practices to maintain consistent quality and predictable plasticization performance.
