Trimellitic Anhydride Chemical Properties
- Melting point:
- 163-166 °C(lit.)
- Boiling point:
- 390 °C
- vapor density
- 6.6 (vs air)
- vapor pressure
- <0.01 mm Hg ( 20 °C)
- refractive index
- 1.4717 (estimate)
- Flash point:
- 227 °C
- storage temp.
- Store below +30°C.
- 24.4g/l (decomposition)
- White to off-white
- 2 (21g/l, H2O, 20℃)
- explosive limit
- Water Solubility
- Moisture Sensitive
- Stable. Moisture sensitive.
- CAS DataBase Reference
- 552-30-7(CAS DataBase Reference)
- NIST Chemistry Reference
- Trimellitic anhydride(552-30-7)
- EPA Substance Registry System
- Trimellitic anhydride (552-30-7)
Trimellitic Anhydride Usage And Synthesis
white crystalline powder,combustible.
Trimellitic anhydride is a crystalline solid. It is the anhydride of trimellitic acid (1,2,4-benzenetricarboxylic acid).
In the preparation of resins, adhesives, polymers, dyes, printing inks.
Trimellitic anhydride is mainly applied to produce good heat-proof, weather-proof and solvent-proof trimellitate plasticizers, among which the most popular product is tri(2-ethylhexyl)trimellitate. It is also used to synthesize polyester resins.TMA can also be applied to curing agent of epoxy resins.
Trimellitic Anhydride is mainly used as raw material for polyester resin,polyimide resin,plasticizer TOTM ,and also be used for producing heatproof & insulating,adhesive,surfactant, paint,synthesize dye materials etc. Trimellitic anhydride is used as an embossing agent for vinyl flooring and as a curing agent for epoxy resins. It is also used as an intermediate for the synthesis of surface coatings chemicals, adhesives, polymers, dyes printing inks, pharmaceuticals .
ChEBI: A 2-benzofuran compound having oxo groups at the 1- and 3-positions and a carboxy substituent at the 5-position; the cyclic anhydride formed from the carboxy groups at the 1- and 2-positions of trimellitic acid.
Air & Water Reactions
Sensitive to moisture. Hydrolyzes slowly. Solutions in water or alcohol may be unstable. Insoluble in water.
1,2,4-Benzenetricarboxylic anhydride reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. Incompatible with strong oxidizing agents, strong acids or strong bases. .
Toxic by inhalation. Respiratory sensitization.
Moderately toxic by ingestion. Has caused pulmonary edema from inhalation. Irritant to lungs and air passages. May be a powerful allergen. Typical attack consists of breathlessness, wheezing, cough, running nose, immunologcal sensitization, and asthma symptoms. When heated to decomposition it emits acrid smoke and irritating fumes. See also ANHYDRIDES.
TMA is used to produce trimellitate plasticizers, poly (amide-imide) polymers; in paints, enamels, and coatings; polymers, polyesters; as a curing agent for epoxy and other resins; in vinyl plasticizers; agricultural chemicals; dyes and pigments; pharmaceuticals, surface active agents; modifiers, intermediates, and specialty chemicals.
Dust can cause an explosion. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Reacts slowly with water, forming trimellitic acid. Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water and a salt that may be harmful.
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.
Trimellitic Anhydride Preparation Products And Raw materials
- MELLITIC TRIANHYDRIDE
- AKOS 243-36
- 1,2,4,5-BENZENETETRACARBOXYLIC DIANHYDRIDE-D2
- 4-METHACRYLOXYETHYL TRIMELLITIC ANHYDRIDE
- Trimellitic anhydride chloride ,99%,TRIMELLITIC ANHYDRIDE CHLORIDE,TRIMELLITIC ANHYDRIDE MONO ACID CHLORIDE,TRIMELLITIC ANHYDRIDE ACID CHLORIDE,Trimellitic anhydride monochloride,1,2,4-BENZENETRICARBOXYLIC ANHYDRIDE ACID CHLORIDE
- Acetic anhydride
- Maleic anhydride
- Chromium(VI) oxide
- Erythromycin Estolate
- 1,3,5-Benzenetricarboxylic acid chloride
- 1,2,4-Benzenetricarboxylic acid
- Trimellitic Anhydride
- Trifluoromethanesulfonic anhydride
- Phloroglucinol dihydrate
- Isatoic Anhydride
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