Trimellitic Anhydride

Product details

Trimellitic Anhydride (TMA) is a Dicarboxylic Acid and is being produced by oxidation of Pseudocumene (1,2,4-Trimethylbenzene).

CAS-No. 552-30-7
EINECS-No. 209-008-0
Chemical formula: C9H4O5

Synonyms: Benzene-1,2,4-tricarboxylic acid | 1,2,4-Benzenetricarboxylic acid | 4-Carboxyphthalic acid | 1,2,4-Tricarboxybenzene | Hexaglycerol
Uses/applications: Polyester- and Polyamide Resins, raw material for PVC-plasticizers,curing agent (hardener) for Epoxy Resins, watersoluble Alkyd- and Amino-alkyd resins, Polyurethane Resins, Wire enamels, etc.


Product CodeQualityPacking UnitSpec SheetInquiry
12060 Flakes 25kg bags PDF - 25kg bags - flakes Contact
12062 Flakes 500kg big bags PDF - 500kg big bags - flakes Contact
12064 Flakes 1000kg big bags PDF - 1000kg big bags - flakes Contact

MSDS according 91/155 EEC (2001/58 EC)

Englisches Datasheet MSDS EN Flagge Deutschland SDB DE  MSDS ES
Länderflagge Italien MSDS IT  MSDS FR Niederlande Flagge MSDS ND
 MSDS PL slovenian flag MSDS SK Slovenien Flagge MSDS SL

More information

Information pertaining to particular dangers for man and environment:
R 37 Irritating to respiratory system.
R 41 Risk of serious damage to eyes.
R 42/43 May cause sensitisation by inhalation and skin contact.

Classification system for Trimellitic Anhydride (TMA)
The classification was made according to the latest editions of the EU-lists, and expanded using company data and specialized

Additional information:
Aqueous solutions of the substance are acidic.
Chemical characterization for Trimellitic Anhydride (TMA), Benzene-1,2,4-Tricarboxylic-1,2-anhydride:
CAS No. Description:
552-30-7 benzene-1,2,4-tricarboxylic-1,2-anhydride

Identification number(s):
EINECS Number: 209-008-0
EU Number: 607-097-00-4
General Information for Trimellitic Anhydride (TMA), Benzene-1,2,4-Tricarboxylic-1,2-anhydride:
Form: Flakes
Colour: Whitish
Odour: mouldy
Change in condition:
Melting point/Melting range: 165°C
Boiling point/Boiling range: 390°C
Flash point: not applicable
Flammability (solid, gaseous) Product is not flammable.
Danger of explosion: Product is not explosive. However, formation of explosive air/dust mixtures is possible.
Explosion limits:
Lower: 1 Vol %
Upper: 7 Vol %
Vapour pressure: 7.6x10-5 Pa
Density at 20°C: 1.54 g/cm³
Solubility in / Miscibility with
Water: decomposition
pH-value (21 g/l) at 20°C: 2
Segregation coefficient (n-octanol/water): 1.95 log POW
Additional information: Soluble in acetone.

Land transport ADR/RID (cross-border) for Trimellitic Anhydride (TMA):
ADR/RID class: -
No hazardous good according to the regulation.

Maritime transport IMDG:
IMDG Class: -
No hazardous good according to the regulation.

Air transport ICAO-TI and IATA-DGR:
ICAO/IATA Class: -
No hazardous good according to the regulation.
Markings according to EC guidelines for Trimellitic Anhydride (TMA):
The product has been classified and marked in accordance with EU Directives / Ordinance on Hazardous Materials

Code letter and hazard designation of product:
Xn Harmful

Risk phrases:
37 Irritating to respiratory system.
41 Risk of serious damage to eyes.
42/43 May cause sensitisation by inhalation and skin contact.

Safety phrases:
22 Do not breathe dust.
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
36/37/39 Wear suitable protective clothing, gloves and eye/face protection.

National regulations

Information about limitation of use:
Employment restrictions concerning pregnant and lactating women must be observed.
Restrictions on juvenile employment must be observed.

Water hazard class: Water hazard class 1 (Self-assessment): slightly hazardous for water.

Hazard description

GHS-hazard labels

Hazadous material sign

Xi Irritant