Synonyms: 1,2,4-benzenetricarboxylic acid 1,2-anhydride
English abbre.: TMA
Cas RN: 552-30-7
Struc. formula:
Mole. weight: 192.12
Solubility: Soluble in ethanol, acetone, and most other organic solvents, slight soluble in water and transformed into trimellitic acid.
Boiling point: 390°C under normal atmosphere, decomposing around B. P. .
Density(ρ₂₀): 1.54g/cm³
Trademark:
Product standard: GB/T 23967-2009 <Trimellitic anhydride for industrial use>

Specification:

Items	Limits
Apperance	White or offwhite flakes
Purity/wt%min.	95.0
Acid Value/(mgKOH/g)min.	865
Crystallizing Point/℃min.	150
Molten Colour /(APHA)max.	164.0

Applications:
　　Trimellitic anhydride is mainly applied to produce trimellitate plasticizers and polyester resins. It is also applied in heat-proof wire enamels,such as: high-grade polyurethane, polyesterimide, polyamideimide and polyimide. And it has wide application areas like impregnating oil for power capacitors, adhesives, dyestuffs, printing inks, medicines and farm chemicals.

Package and delivery:
　　25kg net weight in line model compound bags, or at customer’s request, packed in line model comound bags at 500/1000kg net weight.