Pyromellitic dianhydride
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Introduction
Pyromellitic dianhydride is white or yellow block and pink solid crystal with a specific gravity of 1.68, and it is soluble in acetone, dimethyl acetamide and other solvents. Pyromellitic dianhydride is mainly used in the production of digestive solid agent in the powder coatings, polyimide resins and films, high temperature resistant electrical insulation paints, solid lubricants, epoxy resin curing agent plasticizer and polyester resin crosslinking agents.
Product Quality Indicators:
| Powder: | Ultrafine: | BOPI level: |
| Melting point: ≥ 286 ℃ | Melting point: ≥ 286 ℃ | Melting point: ≥ 286 ℃ |
| Content ≥ 99.8% | Content ≥ 99.8% | Content ≥ 99.8% |
| Neutralization equivalent: 54.5±0.2 | Neutralization equivalent: 54.5±0.2 | Neutralization equivalent: 54.5±0.2 |
| Granularity: 99%<150um |
Granularity: 99%<10um |
Granularity: Below 150um <20% Above 850um <20% |
| Free acid: ≤ 0.3% | Free acid: ≤ 0.3% | Free acid: ≤ 0.3% |
| Acetone residue: ppm ≤ 1500ppm | Acetone residue: ppm ≤ 1500ppm | Acetone residue: ppm ≤ 1500ppm |
Packing and storage:
The product adopts double-layer packaging, the inner layer is made of plastic film, and the outer layer is made of cardboard barrel. The net weight of the product is 25kg to 200kg, which can be packaged according to the needs of customers.
Store in a dry and ventilated place to prevent moisture and deterioration.
Key words:
Pyromellitic dianhydride
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