1,2,4,5-Benzene- tetracarboxylic anhydride 89-32-7 C10H2O6 PMDA
1,2,4,5-Benzene- tetracarboxylic anhydride 89-32-7 C10H2O6 PMDA
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1,2,4,5-Benzenetetracarboxylic anhydride_89-32-7_C10H2O6_PMDA


Name
1,2,4,5-Benzenetetracarboxylic anhydride
Synonyms
Pyromellitic dianhydride; Benzene-1,2,4,5-tetracarboxylic dianhydride; PMDA
CAS
89-32-7
Molecular Formula
C10H2O6
purity

>99.5%
Melting point
286.2-287.0℃
Acetone residue
≤1500 PPM
acidity
≤0.5%
granularity
custom made
EINECS
201-898-9
appearance
White or off-white crystal
Product nature
This product is white or off-white crystal, soluble in acetone, ethyl acetate, dimethylacetamide, insoluble in luram ether.
Dangerous goods grade
Non-dangerous goods
Product Usage
Polyimide film, polyimide resin, high temperature resistant insulating varnish, PVC plasticizer, synthetic resin crosslinking agent, epoxy resin curing agent, powder coating matting agent, etc.
Known as the "golden film" widely used in electronics, electrical, aerospace and atomic energy sectors
Storage note
The product must be placed in a cool, dry, well ventilated place with an open flame or potential source of ignition. She will slowly hydrolyze to pyromellitic acid when exposed to the air in the supermarket. For this reason, the package should be sealed when pyromellitic dianhydride is not practical.

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