Trimellitic anhydride a softening and hardening agent wrapped into one
Trimellitic anhydride, or TMA for short, is an ingredient for producing paint resins, plasticizers (e.g. for medicine capsules), and polyesters. It is also a hardening agent for epoxy resins, water-soluble alkyd and amino alkyd resins, polyurethane resins, wire enamels, etc. TMA plays a decisive role in the production of extremely heat-resistant polymers like polyesterimides and polyamide-imides.
Trimellitic anhydride comes as a colorless powder or colorless crystals, both of which are combustible. The chemical belongs to the dicarboxylic acids and is produced by the oxidation of pseudocumene (1,2,4-trimethylbenzene).
Benzene-1,2,4-tricarboxylic acid 1,2-anhydride, trimellitic anhydride
Trimellitic anhydride is very caustic and must therefore be handled with extreme care.
GTS imports TMA as a finished raw material and sells it across Europe.
CAS no. TMA:
552-30-7 / EINECS no. 209-008-0 (benzene-1,2,4-tricarboxylic acid 1,2 anhydride)