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HS Code |
623942 |
| Product Name | 4,4'-Biphthalic Anhydride |
| Cas Number | 38103-07-4 |
| Molecular Formula | C16H6O6 |
| Molecular Weight | 294.22 g/mol |
| Appearance | Pale yellow solid |
| Melting Point | 265-269°C |
| Boiling Point | Decomposes |
| Solubility | Insoluble in water |
| Purity | Typically >98% |
| Storage Conditions | Store in a cool, dry place |
| Synonyms | 4,4'-Oxybisphthalic anhydride |
| Density | 1.65 g/cm³ |
| Smiles | O=C1OC(=O)c2cccc(c2)Oc3c(cccc3)C(=O)O1 |
As an accredited 4,4'-Biphthalic Anhydride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Purity 99%: 4,4'-Biphthalic Anhydride with 99% purity is used in high-performance polyimide synthesis, where enhanced thermal stability and mechanical strength are achieved. Melting Point 260°C: 4,4'-Biphthalic Anhydride with a melting point of 260°C is used in advanced electronic insulation resin formulations, where consistent film formation and thermal resistance are required. Particle Size <10 μm: 4,4'-Biphthalic Anhydride with particle size below 10 micrometers is used in composite materials production, where improved dispersion and uniformity contribute to superior composite properties. Moisture Content <0.1%: 4,4'-Biphthalic Anhydride with low moisture content is used in the manufacturing of aerospace-grade adhesives, where moisture-sensitive curing results in superior bond integrity. Stability Temperature up to 350°C: 4,4'-Biphthalic Anhydride with a stability temperature of up to 350°C is used in high-temperature resistant coatings, where prolonged operational durability is ensured. Molecular Weight 298 g/mol: 4,4'-Biphthalic Anhydride with a molecular weight of 298 g/mol is used in specialty polymer synthesis, where controlled polymer chain architecture is essential for target properties. Viscosity Grade High: 4,4'-Biphthalic Anhydride of high viscosity grade is used in encapsulation materials for electronic devices, where enhanced barrier performance and protection are realized. |
| Packing | 4,4'-Biphthalic Anhydride is supplied in a 500g amber glass bottle with a tightly sealed cap, labeled with hazard information. |
| Container Loading (20′ FCL) | 20′ FCL container holds about 10-12 metric tons of 4,4'-Biphthalic Anhydride, packed in fiber drums or PE-lined bags. |
| Shipping | 4,4'-Biphthalic Anhydride is shipped in sealed, moisture-resistant containers to prevent hydrolysis. It should be transported as a solid in tightly closed drums or bottles, clearly labeled, and stored in a cool, dry place. Handle according to all local, national, and international chemical shipping regulations, including hazard labeling and documentation. |
| Storage | **4,4'-Biphthalic anhydride** should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from moisture and incompatible substances such as strong bases and oxidizing agents. Protect the chemical from exposure to humidity and water to prevent hydrolysis. Properly label all storage containers and ensure access is restricted to trained personnel. |
| Shelf Life | 4,4'-Biphthalic Anhydride typically has a shelf life of 2 years in tightly sealed containers, protected from moisture and stored cool. |
Competitive 4,4'-Biphthalic Anhydride prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
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Tel: +8615380400285
Email: sales2@liwei-chem.com
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