Product Introduction
Trimellitic Anhydride (TMA), also known as 1,2,4-phenyltrimethyl anhydride, is an important chemical intermediate with the molecular formula C₉H₄O₅ and a molecular weight of 192.13.
Product Properties
|
Product Name： |
Trimellitic Anhydride |
|
Other Names |
TMA 1,2, 4-phenyltrimethyl anhydride |
|
CAS No.： |
552-30-7 |
|
Molecular Formula: |
C9H4O5 |
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Structural formula: |
|
|
Solubility: |
Soluble in anhydrous ethanol and reaction, slightly soluble in carbon tetrachloride, toluene. |
Product Specification
|
Items |
Analytical data |
Specifications |
|
APPEARANCE |
WHITE FLAKES |
WHITE FLAKES |
|
PURITY (TMA,%) |
97.6 |
97MIN |
|
PURITY(PA,%) |
0.010 |
0.05MAX |
|
CRYSTALLIZING POINT(℃) |
165.8-166.5 |
164MIN |
|
ACID VALUE(mg/g) |
877.6 |
873MIN |
|
MOLTEN COLOR(APHA) |
110 |
150MAX |
Product Application
More than 90% of trimeric anhydride is used to produce dioctyl trimeric acid (TOTM), a plasticizer for polyvinyl chloride (PVC), which is favored for its excellent thermal stability and low migration.
In addition to its applications in the plastics industry, TMA is also used in:
Manufacturing polyester and polyimide resins, which are widely used in electronics, aerospace, and other industries.
The production of water-soluble polymers, such as water-soluble polyester resin, water-soluble polyurethane resin, and water-soluble amino alkyd resin. These materials have important applications in textiles, coatings, adhesives, and other industries.
Advanced aviation lubricating oils and power capacitor impregnating oils, which enhance lubrication performance and electrical insulation properties.
The preparation of pellet binders, sizing agents, smoke extinguishing agents, and transient binders. These products are used in paper-making, wood processing, building materials, and other industries.
Product Packaging & Storage
Plastic-lined composite bags are available,Net weight: 25 kg/bag,500 kg/bag,1000 kg/bag.
FAQ
Q: What are the advantages of TOTM made by TMA over other plasticizers?
A: Dioctyl trimelate (TOTM), when used as a PVC plasticizer, offers excellent thermal stability and light stability. It is not prone to migration and will not cause plastic products to harden or crack. It also maintains good low-temperature flexibility and softness, making it environmentally friendly. These properties make it particularly suitable for PVC products that require long-term use and high temperature resistance, such as wire and cable insulation, medical equipment, and food packaging materials.
Q: What are the properties of resins made from trimellitic anhydride?
A: Polyester and polyimide resins made from it have excellent heat resistance, mechanical strength, and chemical stability. They maintain good electrical performance even at high temperatures, making them ideal for the manufacture of high-end electronic components, aerospace materials, and high-performance coatings that need to remain stable and reliable under extreme conditions.
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