Trimellitic Anhydride 552-30-7 in stock factory  

1,2,4-Benzenetricarboxylic anhydride

Name                 1,2,4-Benzenetricarboxylic anhydride

Synonyms                   Benzene-1,2,4-tricarboxylic anhydride; Trimellitic anhydride

Molecular Structure                 

Molecular Formula           C9H4O5

Molecular Weight             192.13

CAS Registry Number                552-30-7

EINECS              209-008-0

Properties

Density              1.54

Melting point            164-169 ºC

Boiling point              390 ºC

Flash point                 227 ºC

Water solubility                 DECOMPOSES

Safety Data

Hazard Symbols                     Xn    Details

Risk Codes                 R37;R41;R42/43    Details

Safety Description            S22;S26;S36/37/39    Details

MSDS                 Available

Trimellitic Anhydride Basic information

Product Name:    Trimellitic Anhydride
Synonyms:    1,3-dioxo-5-phthalanacarboxylicaci;1,3-Dioxo-5-phthalancarboxylic acid;1,3-dioxo-5-phthalancarboxylicacid;5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-;5-Isobenzofurancarboxylicacid,1,3-dihydro-1,3-dioxo-;5-Phthalanacarboxylic acid, 1,3-dioxo-;anhydride-ethomidhtpolymer;anhydridetrimellitique
CAS:    552-30-7
MF:    C9H4O5
MW:    192.13
EINECS:    209-008-0
Product Categories:    -;addictives;Industrial/Fine Chemicals;Fluorenes, etc. (reagent for high-performance polymer research);Functional Materials;Reagent for High-Performance Polymer Research;fine chemicals;Pyridines;pharmaceutical raw material
Mol File:    552-30-7.mol
Trimellitic Anhydride Structure
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)
Fp     227 °C
storage temp.     Store below +30°C.
solubility     24.4g/l (decomposition)
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
Stability:    Stable. Moisture sensitive.
CAS DataBase Reference    552-30-7(CAS DataBase Reference)
NIST Chemistry Reference    Trimellitic anhydride(552-30-7)
EPA Substance Registry System    5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-(552-30-7)
Safety Information
Hazard Codes     Xn
Risk Statements     37-41-42/43
Safety Statements     22-26-36/37/39
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
MSDS Information
Provider    Language
Trimellitic anhydride     English
ACROS     English
SigmaAldrich     English
ALFA     English
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.
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.
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
Preparation Products    Triethylene glycol dimethacrylate-->Rhodamine 123-->Triisooctyl phosphite
Raw materials    Polyvinyl chloride-->Triethylene glycol dimethacrylate-->Cobalt acetate-->1,2,4-Trimethylbenzene-->MANGANESE(II) ACETATE-->1,1,2,2-Tetrabromoethane-->POLY(1-GLYCEROL METHACRYLATE)-->ALKYD RESIN-->Polyurethane-polyvinyl chloride imitation leather-->DIOCTYL PHTHALATE (DOP)-->Curing agent for epoxy resin-->POLYIMIDE RESIN