Trimellitic acid anhydride（TMA）

Trimellitic anhydride is a trifunctional, highly reactive aromatic anhydride. It is used as applications such as insulating materials and heat-resistant plasticizers to provide high heat resistance. It also imparts water suspension and resistance to water-based paint resins and enhances reactivity to shorten processing time.

Abbreviation	1,2,4-Benzene tricarboxylic acid 1,2-anhydride
Classification of Substances and Mixtures	Single substance
Cas No.	552-30-7
Existing Chemical Substance Inventory No.	（3）-1362

Structural Formula

Physical Properties

Appearance	White crystal
Specific Gravity（20℃）	1.54
Flash point（℃）	227
Boiling point（℃）	390
Solubility	Water、Ethanol、Easily soluble to acetone

Specification

Anhydrous content　％	Over 95
Freezing point　℃	Over 165
Melt color（190℃×60min） Hazen	Below 250

Skin irritation

There is irritation to eys and skin.