B4600

1,2,4-Benzenetricarboxylic anhydride

97%

• Synonym(s): Trimellitic anhydride, Benzene-1,2,4-tricarboxylic anhydride
• Empirical Formula (Hill Notation): C₉H₄O₅
• CAS Number: 552-30-7
• Molecular Weight: 192.13
• Beilstein: 9394
• EC Number: 209-008-0
• MDL number: MFCD00005925
• UNSPSC Code: 12162002
• PubChem Substance ID: 24891792
• NACRES: NA.23

Properties

• vapor density: 6.6 (vs air)
• Quality Level: 200
• vapor pressure: <0.01 mmHg ( 20 °C)
• Assay: 97%
• form: solid
• expl. lim.: 7 %
• mp: 163-166 °C (lit.)
• SMILES string: OC(=O)c1ccc2C(=O)OC(=O)c2c1
• InChI: 1S/C9H4O5/c10-7(11)4-1-2-5-6(3-4)9(13)14-8(5)12/h1-3H,(H,10,11)
• InChI key: SRPWOOOHEPICQU-UHFFFAOYSA-N

Description

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).[1][2]

Application

TA can chemically modify sugarcane bagasse, which can be used in the absorption of auramine and safranin dyes from aqueous solutions.[3] It can be blended with epoxy propane in the synthesis of polyurethane acrylates, which can be used as oligomers for ultra-violet based coatings.[4] Polyamide P84 ultra-filtration membranes can be functionalized with TA by interacting the amide linkages with the anhydrides.[5]

Safety Information

• Pictograms: GHS08,GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H317,H318,H334,H335
• Precautionary Statements: P261 - P271 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Resp. Sens. 1 - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): 440.6 °F - closed cup
• Flash Point(C): 227 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves