Pyromellitic Dianhydride CAS 89-32-7
Sinochem is a major Pyromellitic dianhydride supplier. Meanwhile, our firm staffs a group of experts devoted to your development of China Pyromellitic dianhydride.
- Ensures consistent performance in sensitive applications like electronics and polymers
- Withstands high temperatures, making it ideal for high-performance polyimides
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Essential in producing high-strength, heat-resistant polyimide films and resins.
Phthalic acid dianhydride Description
NAME: Pyromellitic dianhydride (PMDA)
Synonyms: Pyromellitic anhydride / Pyromellitic acid anhydride / 1,2,4,5-Benzenetetracarboxylic dianhydride
Molecular Formula: C10H2O6
Molecular Weight: 218.12
CAS NO.: 89-32-7
Density: 1.9±0.1 g/cm3
Boiling point: 398.6±15.0 °C at 760 mmHg
Melting point: 283-286 °C(lit.)
Flashing point: 183.5±20.4 °C
Appearance: White acicular crystal or powder.
Solubility: Insoluble in chloroform, ether, n-hexane, benzene. It hydrolyzes to pyrophthalic acid when exposed to wet air.
Properties: White powder, soluble in dimethyl sulfoxide, dimethylformamide, acetone, and hydrolyzes to generate acid when exposed to moist air.
Storage: This product should be sealed in a cool dry place away from light storage. Keep away from fire, heat, sun and moisture. Double-layer packaging, inner layer with plastic film, outer layer with cardboard bucket.
Safety Protection: This product is toxic and can irritate mucous membranes and skin, causing allergic and hypersensitive reactions. If it adheres to the skin, it should be washed with soapy water. Operators should wear protective masks and glasses.
About Us: With over many years as a certified Pyromellitic dianhydride manufacturer, we combine innovation with stringent production standards to deliver high-performance product.
Pyromellitic anhydride Technical
If you need Pyromellitic dianhydride (PMDA) MSDS & COA, please contact us.
| Item | Index |
| Appearance | White acicular crystal or powder |
| Content (w, %) | ≥98.0 |
| Purity | ≥99.5 |
| Free Acid Content | ≤0.5 |
| Residual Acetone | ≤1500 |
As a certified Pyromellitic dianhydride factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
Pyromellitic acid anhydride Applications
1. Pyromellitic acid is used in the manufacture of polyimide resins, which are used as raw materials for high-temperature electrical insulating paints.
2. It is also used to produce epoxy resin curing agent and plasticizer, urea formaldehyde resin stabilizer, phthalocyanine blue dye, corrosion inhibitor, instant binder, electronic photography toner, etc.
