1,2,4-Benzenetricarboxylic anhydride CAS NO.552-30-7

CAS NO.: 552-30-7 HS Code: 2917399090 Molecular formula: C9H4O5 Appearance: white flaky Melting point: 165-168 Solubility: soluble in hot water, acetone, ethyl acetate,cyclohexanone, soluble in …

CAS NO.: 552-30-7 HS Code: 2917399090 Molecular formula: C9H4O5 Appearance: white flaky Melting point: 165-168 Solubility: soluble in hot water, acetone, ethyl acetate,cyclohexanone, soluble in absolute ethyl alcohol and react with it. TMA quality index：Enterprise standard Q/321181GSH008-2005 Appearance: white flaky Purity % : ≥99.80 Acid number mg KOH/g: ≥873.00 Anhydride content %: ≥98.50 Melting point : 166.0～168.0 triethylene glycol(TEG)chroma,Pt-Co: ≤35# Fuse chroma Pt-Co: ≤100# PA ppm : ≤500 Mian use: Trimellitic anhydride (TMA) is an important organic chemical product mainly used to produce PVC resin plasticizers, polyimide resin, water-soluble alkyd resins, epoxy resin curing agents, dipping agents for low-pressure and pulse power capacitors, cine films, water treatment agents and surfactants.