Pyromellitic Dianhydride (PMDA)

Pyromellitic Dianhydride (PMDA) is a white powder. It can be used as a repair agent and as a chain extender . It is mainly used in the production of thermoplastics and other coating applications.

Synonym:
1,2,4,5-Benzenetetracarboxylic anhydride
Appearance:
White Power
CAS No.:
89-32-7
Molecular Formula:
C10H2O6
Molecular Weight:
218.12
EINECS:
201-898-9
Flash Point:
380℃

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DESCRIPTION

DESCRIPTION

PYROMELLITIC DIANHYDRIDE (PMDA)

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SPECIFICATIONS

Test Description	Specification	Result
Purity	≥99.5％	99.96％
Residual Acetone	≤1500 ppm	974 ppm
Melting Point	286-287.5℃	286.1-287.1℃
Color	White	White
Acid（PMA）	≤0.5％	0.11％
Impurity Content	≤30 ppm	20 ppm
Particle Size	≤ 150-600μm（≥90％）	95％

APPLICATION

w700d1q75cms Pyromellitic Dianhydride (PMDA) has been used extensively as an important monomer in the preparation of a variety of thermoplastics such as polyesters, polycarbonates, polyethers polyethers, plasticizersplasticizers, expoxy resins, etc. Moreover, it is also useful in the preparation of high performance coatings that have been widely employed in many fields in our daily life beacuase of its excellent thermal, oxidative stability and excellent mechanical properties.