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Description of Trimellitic Anhydride CAS: 552-30-7

 

Trimellitic Anhydride CAS: 552-30-7 is a low-molecular-weight chemical known to cause occupational asthma. It induces airway obstruction and eosinophilia after a latency period of sensitization.

 

The synthesis of TMA CAS: 552-30-7 derivatives has been extensively studied, with various methodologies developed for efficient production. For instance, trimellitic anhydride chloride, a key intermediate, can be synthesized in batches at 70°C, achieving yields up to 95% through the determination of chloride content. This process involves the reaction of trimellitic anhydride with thionyl chloride, using specific catalysts and solvents to optimize the reaction conditions and yield.

 

Product Details:

Name: trimellitic anhydride

 

 

Synonyms: 

1,2,4-Benzenetricarboxylic anhydride;

Anhydrosepedonin;

1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid;

1,3-dioxo-1,3-dihydro-isobenzofuran-5-carboxylic acid;

5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-;

Anhydrotrimellitic acid;

4-carboxyphthalic anhydride;

 

 

CAS: 552-30-7

MF: C9H4O5

MW: 192.13

MP: 163-166 °C(lit.)

BP: 390 °C

FP: 227 °C

Purity: 95%min

Density: 1.54

Refractive index: 1.662

Appearance: white to off-white flake

Stability: Stable. Moisture sensitive.

Package: 5g, 25g, 100g, 500g, 1kg, 25kg

Storage Condition: Store in a cool, dry place. Store in a tightly closed container.

 

Application of Trimellitic Anhydride CAS: 552-30-7

This product is mainly used in polyester resin, trioctyl trimellitate (TOTM), epoxy resin curing agent (M

68) And the raw materials of insulating paint and other products. It can also produce heat-resistant insulating materials, adhesives, surfactants and pigments, synthetic dyes, etc.

 

With the excellent performance of holding high temperature and low volatility of polymeric plasticizers, TMA can be widely used as plasticizers because of offering the low-temperature flexibility and processing ease of phthalate esters.
 

Trimellitic Anhydride CAS: 552-30-7, part of multi-function intermediate, is developed & applied for chemicals and polymers. Trimellitic Anhydride is also applied as part of important curing agent at the production process of epoxy resins, polyester resins or polyurethane. With the excellent performance of holding high temperature and low volatility of polymeric plasticizers, TMA can be widely used as plasticizers because of offering the low-temperature flexibility and processing ease of phthalate esters.

Trimellitic Anhydride CAS: 552-30-7 is also suggested for the production of oven-cured coatings and air-dry coatings because it has a strong thermal resistance. Also it is used to produce TOTM, or dopolyesterimide because it is found to able to condensed with aromatic diamineto.

Other special applications, like as fiber treatment agent, daily use products, for water-solved paints…

 

Future Directions
The market is driven by the increasing demand for insulation materials and polyester resins in various end-use industries such as construction, automotive, and packaging.
 

 

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