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Pyromellitic dianhydride (PMDA) is used in the preparation of polyimide films, polyimide resins, powder coating matting agents, and advanced electrical insulation materials. Pyromellitic Dianhydride (PMDA) is an important raw material for the organic synthesis industry, but also the basic raw material for the development of new chemical materials and high value-added fine chemical products, mainly used in the production of polyimide monomer, in addition to can also be used as epoxy resin curing agent and polyester resin crosslinking agent, used in the manufacture of phthalocyanine blue dye and some important derivatives, etc., widely used. Pyromellitic Dianhydride has a special molecular structure, can be used to manufacture heat resistance, electrical insulation and chemical resistance materials, the most important use is as a monomer of polyimide, and aromatic diamino synthesis to obtain polyimide plastic.
| Items | Specifications | Results |
| Appearance | White or off-white crystals | White crystal |
| PMDA | ≥99.5% | 99.94% |
| TMA | ≤0.2% | 0.03% |
| Free acid | ≤0.5% | 99.6% |
| Acetone residue | ≤1500ppm | 652ppm |
| Product parameters | |
| Cas number: | 89-32-7 |
| Appearance: | White or off-white crystals |
| Purity: | 98%min; 99%min; 99.5%min |
| Package details: | 20kg/carton or 25kg/fiber drum |
| Brand: | Fortunachem |
Pyromellitic dianhydride (PMDA) is employed as a curing agent for epoxy agent resins used for casting, laminating, the manufacture of moulding powders, adhesives and coatings.
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