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HS Code |
133202 |
| Chemical Name | 4,4'-Biphthalic Dianhydride |
| Cas Number | 38103-06-9 |
| Molecular Formula | C16H6O6 |
| Molar Mass | 294.22 g/mol |
| Appearance | White to off-white crystalline powder |
| Melting Point | 241-245°C |
| Solubility | Insoluble in water, soluble in some organic solvents |
| Density | 1.61 g/cm3 |
| Purity | Typically ≥98% |
| Boiling Point | Decomposes before boiling |
| Storage Conditions | Store in a cool, dry, well-ventilated place |
As an accredited 4,4'-Biphthalic Dianhydride 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 Dianhydride with purity 99% is used in high-performance polyimide synthesis, where it enhances dielectric strength and thermal stability of the resulting films. Melting Point 315°C: 4,4'-Biphthalic Dianhydride with melting point 315°C is used in aerospace composite resin formulations, where it ensures consistent processing and mechanical integrity under high-temperature conditions. Particle Size <10 μm: 4,4'-Biphthalic Dianhydride with particle size less than 10 μm is used in electronic insulating varnishes, where it provides uniform dispersion and smooth surface finish. Stability Temperature 400°C: 4,4'-Biphthalic Dianhydride with stability temperature up to 400°C is used in automotive under-the-hood adhesives, where it imparts resistance to thermal degradation. Low Halogen Content: 4,4'-Biphthalic Dianhydride with low halogen content is used in microelectronic encapsulating materials, where it minimizes corrosion risks and improves component lifespan. Molecular Weight 298.19 g/mol: 4,4'-Biphthalic Dianhydride with molecular weight 298.19 g/mol is used in membrane technology, where it enables the formation of selective and chemically resistant filtration layers. Moisture Content <0.2%: 4,4'-Biphthalic Dianhydride with moisture content below 0.2% is used in optoelectronic polymer manufacturing, where it prevents hydrolysis and maintains material clarity. |
| Packing | 4,4'-Biphthalic Dianhydride is packaged in a 500g amber glass bottle with tamper-evident cap and chemical hazard labeling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for 4,4'-Biphthalic Dianhydride: Typically 10-12 metric tons packed in 25kg fiber drums with PE liners. |
| Shipping | 4,4'-Biphthalic Dianhydride is shipped in tightly sealed, corrosion-resistant containers, typically lined fiber drums or HDPE bottles, to prevent moisture exposure. The chemical should be stored and transported in a cool, dry place, away from incompatible substances. Standard shipping complies with regulations for non-hazardous solid chemicals. |
| Storage | 4,4'-Biphthalic Dianhydride should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area. Protect it from moisture, as it is sensitive to hydrolysis. Keep away from incompatible substances such as strong bases and strong oxidizers. Ensure proper labeling and store away from food and drink. Use secondary containment to prevent accidental spills or leaks. |
| Shelf Life | 4,4'-Biphthalic Dianhydride has a shelf life of 2-3 years when stored in a tightly sealed container, away from moisture. |
Competitive 4,4'-Biphthalic Dianhydride 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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