Trimellitic Anhydride
- Product Name
- Trimellitic Anhydride
- CAS No.
- 552-30-7
- Chemical Name
- Trimellitic Anhydride
- Synonyms
- 1,3-Dioxo-1,3-dihydroisobenzofuran-5-carboxylic acid;1,2,4-BENZENETRICARBOXYLIC ANHYDRIDE;TMAN;TRIMELLITIC ACID ANHYDRIDE;1,2,4-BENZENETRICARBOXYLIC 1,2-ANHYDRIDE;1,2,4-Benzenetricarboxylic acid anhydride;epon9150;NCI-C56633;chembooktest;AKOS BBS-00003778
- CBNumber
- CB5293056
- Molecular Formula
- C9H4O5
- Formula Weight
- 192.13
- MOL File
- 552-30-7.mol
Trimellitic Anhydride Property
- 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)
- pka
- 3.11±0.20(Predicted)
- form
- Flakes
- 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
- Exposure limits
- ACGIH: TWA 0.0005 mg/m3; STEL 0.002 mg/m3 (Skin)
NIOSH: TWA 0.005 ppm(0.04 mg/m3) - Stability:
- Stable. Moisture sensitive.
- InChIKey
- SRPWOOOHEPICQU-UHFFFAOYSA-N
- LogP
- 0.06-0.54 at 20℃
- 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)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 37-41-42/43
- Safety Statements
- 22-26-36/37/39
- OEB
- D
- OEL
- TWA: 0.005 ppm (0.04 mg/m3) Should be handled in the workplace as an extremely toxic substance.
- WGK Germany
- 1
- RTECS
- DC2050000
- F
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H317May cause an allergic skin reaction
H318Causes serious eye damage
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- B4600
- Product name
- 1,2,4-Benzenetricarboxylic anhydride
- Purity
- 97%
- Packaging
- 25g
- Price
- $44.4
- Updated
- 2024/03/01
- Product number
- B4600
- Product name
- 1,2,4-Benzenetricarboxylic anhydride
- Purity
- 97%
- Packaging
- 1kg
- Price
- $105
- Updated
- 2024/03/01
- Product number
- 8.20138
- Product name
- 1,2,4-Benzenetricarboxylic 1,2-anhydride
- Purity
- for synthesis
- Packaging
- 100g
- Price
- $35.5
- Updated
- 2024/03/01
- Product number
- 8.20138
- Product name
- 1,2,4-Benzenetricarboxylic 1,2-anhydride
- Purity
- for synthesis
- Packaging
- 500g
- Price
- $57.9
- Updated
- 2024/03/01
- Product number
- C0046
- Product name
- Trimellitic Anhydride
- Purity
- >97.0%(HPLC)(T)
- Packaging
- 25g
- Price
- $16
- Updated
- 2024/03/01
Trimellitic Anhydride Chemical Properties,Usage,Production
Chemical Properties
Trimellitic anhydride is a white powder or flakes. It is the anhydride of trimellitic acid (1,2,4-benzenetricarboxylic acid). It is soluble in water, ethanol, acetone and other general organic solvents.
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: Trimellitic anhydride is 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. It has a role as an epitope, an allergen and a hapten. It is a cyclic dicarboxylic anhydride, a dioxo monocarboxylic acid and a member of 2-benzofurans. It is functionally related to a phthalic anhydride and a trimellitic acid.
General Description
1,2,4-Benzenetricarboxylic anhydride(TA) is a hydrophilic monomer with multipurpose usage; as a curing agent for epoxy based resins and as a plasticizer for polyvinyl chloride(PVC).
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.
Synthesis
3-Xylene is carbonylated with carbon monoxide in the presence of boron trifluoride and hydrogen fluoride to form 2,4-dimethylbenzaldehyde. 2,4-Dimethylbenzaldehyde is decomplexed from the acids, purified, and oxidized to trimellitic acid. Trimellitic acid is subjected to normal dehydration and purification steps to obtain high quality trimellitic anhydride.
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.
Trimellitic Anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Trimellitic Anhydride manufacturers
- Product
- Trimellitic Anhydride 552-30-7
- Price
- US $99.00-66.00/kg
- Min. Order
- 0.0010000000474974513kg
- Purity
- 99%
- Supply Ability
- 5000
- Release date
- 2024-08-19
- Product
- Trimellitic Anhydride 552-30-7
- Price
- US $99.00-35.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton
- Release date
- 2024-05-08
- Product
- Trimellitic Anhydride 552-30-7
- Price
- US $0.00/KG
- Min. Order
- 25KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-02-08