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Product Name: Pyromellitic dianhydride Abbreviation: refined anhydride, homo-anhydride
English name: Pyromellitic dianhydride Abbreviation: PMDA
Molecular weight: 218.12 Molecular formula: C10H2O6
Molecular structure:
CAS registration number: 89-32-7
EINECS registration number: 201-898-9
Product characteristics: This product is white or slightly yellow crystal, soluble in acetone, ethyl acetate, dimethylacetamide, insoluble in Luyi ether. Hazard level: non-dangerous goods
Product specifications:
|
NO. |
project |
Quality Index |
|
1 |
puritywt% |
≥99.5wt% |
|
2 |
Melting point℃ |
284-288℃ |
|
3 |
Acetone residue PPM |
≤1500PPM |
|
4 |
colour |
White to slightly yellow |
|
5 |
acid （PMA）% |
≤0.5% |
|
6 |
granularity |
According to customer requirements |
Product use: pyromellitic dianhydride main use: polyimide film, polyimide resin, high temperature electrical insulating varnish, PVC plasticizer, synthetic resin crosslinker, epoxy resin curing agent, powder coating matting Agents, etc.
Packing A: Aluminium plastic bag heat-sealed packaging, 10kg per bag, the outer packaging is a carton, two bags per carton.
Packing B: Packed in paper drum, lined with PE bag, sealed with outer foil bag, two layers of weight: 25kg/barrel, total weight: 27.5kg/barrel or change packaging according to customer needs.
Packing C: 543 standard drum, with aluminum foil bag, desiccant sealed package, net weight per barrel: 135kg/barrel, total weight: 143kg/barrel
Avoid sunlight, waterproof, and store in a dry place during transportation