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Trimellitic Anhydride

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Trimellitic Anhydride Basic information

Product Name:
Trimellitic Anhydride
CAS:
552-30-7
MF:
C9H4O5
MW:
192.13
EINECS:
209-008-0
Mol File:
552-30-7.mol
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Trimellitic Anhydride Chemical Properties

Melting point:
163-166 °C(lit.)
Boiling point:
390 °C
Density 
1.54
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.
solubility 
24.4g/l (decomposition)
form 
Flakes
pka
3.11±0.20(Predicted)
color 
White to off-white
PH
2 (21g/l, H2O, 20℃)
explosive limit
1-7%(V)
Water Solubility 
DECOMPOSES
Sensitive 
Moisture Sensitive
Merck 
14,9703
BRN 
9394
Stability:
Stable. Moisture sensitive.
InChIKey
SRPWOOOHEPICQU-UHFFFAOYSA-N
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)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
37-41-42/43
Safety Statements 
22-26-36/37/39
WGK Germany 
1
RTECS 
DC2050000
10-21
TSCA 
Yes
HS Code 
29173980
Hazardous Substances Data
552-30-7(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 2730 mg/kg LD50 dermal Rabbit 23000 mg/kg

MSDS

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Trimellitic Anhydride Usage And Synthesis

Chemical Properties

white crystalline powder,combustible.

Chemical Properties

Trimellitic anhydride is a crystalline solid. It is the anhydride of trimellitic acid (1,2,4-benzenetricarboxylic acid).

Uses

In the preparation of resins, adhesives, polymers, dyes, printing inks.

Uses

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.

Uses

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 .

Definition

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.

Reactivity Profile

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. .

Hazard

Toxic by inhalation. Respiratory sensitization.

Health Hazard

Trimellitic anhydride (TMAN) causes both respiratory irritation and immunologic respiratory disease.

Safety Profile

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.

Potential Exposure

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.

Carcinogenicity

There are no reports of carcinogenicity associated with TMAN exposure. It was not mutagenic in bacterial assays with or without metabolic activation. No teratogenic effects or developmental toxicity was seen in rats or guinea pigs exposed to 500mg/m3 for 6 hours/day during their period of major organogenesis.

Incompatibilities

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.

Waste Disposal

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.

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Trimellitic AnhydrideSupplierMore

Shandong Kaimike Environmental Protection Technology Co., Ltd. Gold
Tel:
0531-67879638
Email:
1396165523@qq.com;1396165523@qq.com
Wuxi tomorrow Chemical Technology Co., Ltd Gold
Tel:
15949267094 0510-80776682-
Email:
2657909084@qq.com
J & K SCIENTIFIC LTD.
Tel:
400-666-7788 010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
400-660-8290 21-61259100-
Email:
sh@meryer.com
Alfa Aesar
Tel:
400-610-6006
Email:
saleschina@alfa-asia.com
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