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Trimellitic anhydride
Chemical Name：
Trimellitic anhydride
CAS number：
552-30-7
EINECS number：
209-008-0
Molecular formula：
Molecular weight：
192.12
Molecular Structure:
The main purpose：
Trimellitic anhydride, namely 1,2,4-benzenetricarboxylic anhydride, mainly used in unsaturated polyester resin, polyimide resin, water-soluble polyester resin, water-soluble polyurethane resin, water-soluble amino alkyd resin, trimellitic acid Products such as octyl ester (TOTM) and epoxy resin curing agent can also be used as advanced aviation lubricating oil, power capacitor immersion oil, pellet binder, sizing agent, smoke suppressant, and instant binder.
Technical indicators（GB/T23967-2017）
Project Indicator Superior product Qualified product Exterior White or microstrip color solid Trimellitic anhydride，w/% ≥96.5 ≥95.0 Phthalic anhydride，w/% ≤0.05 ≤0.10 Acid value (in KOH)/（mg/g） ≥873 ≥865 Molten color / Hazen unit (platinum-cobalt color number) ≤130 ≤150