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Product Details

Pyromellitic dianhydride (PMDA )

 

Product Name:

Pyromellitic dianhydride (PMDA )

Molecular Formula:

C10H2O6

CAS No.:

89-32-7

Synonyms: 1,2,3,5-benzenetetracarboxylic anhydride; 1,2,4,5-Benzenetetracarboxylic anhydride; 1,2,4,5-Benzenetetracarboxylic Dianhydride; 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone; PMDA.

CAS No.:  89-32-7;                  EINECS No.: 201-898-9

Chemical Formula: C10H2O6;         Molecular Weight: 218.12

Chemical Structure:                               

                                

Specification:

              Appearance:  Slightly white crystal

              Purity:  ≥99.5%

              M.P.:   284~288 ℃

              Neutralization Equivalent: 54.5±0.2

              Pyromellitic monoanhydride (PMMA) & PyromelliticAcid (PMA):  ≤0.5%

              Each Metal ( Na, K, Ca, Fe, Cu, Al, Si):  ≤1PPM

Packaging:  20kgs/box or 25kgs / drum, 135kgs/drum with bag inside or per customer’s request.

Application: To produce polyimide and Bioriented polyimide sheets, gloss retaining and curing agent for powder coating, high temperature-resistant electrical insulating enamel, solid lubricant, solidifying of epoxy resin, plasticizer and cross-linking agents for polyester resins, etc.

Storage:   must be stored for a limited period, away from open flames or other potential ignition sources, in cool dry, well-ventilated place.  It will hydrolyze slowly to PMA when exposed to air moisture. For this reason, all containers must be tightly sealed when not in use.

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