For any procurement manager or R&D scientist in the chemical industry, understanding the precise specifications of a product is paramount to ensuring successful application and procurement. This guide focuses on 2,3,3',4'-Biphenyl Tetracarboxylic Dianhydride (a-BPDA), CAS number 36978-41-3, a critical intermediate for high-performance polymers. As a leading manufacturer and supplier of fine chemical intermediates, we aim to provide clarity on what makes our a-BPDA a superior choice.

The most visually apparent specification for a-BPDA is its appearance: White Powder. This consistent appearance is an indicator of the product's purity and the effectiveness of the manufacturing process. Deviations in color or physical state could suggest impurities or degradation, which are unacceptable for applications requiring precise chemical reactions and material properties.

Crucially, the purity of a-BPDA is a defining characteristic. We guarantee a minimum purity of >=99.50%. This high level of purity is essential for its primary use as a monomer in the synthesis of advanced polyimides. In applications ranging from electronics to aerospace, even minor impurities can significantly compromise the thermal stability, mechanical strength, and electrical insulation properties of the final polymer. Therefore, when you buy a-BPDA, always prioritize suppliers who clearly state and adhere to high purity standards.

Beyond appearance and purity, understanding other typical properties is beneficial. These can include its molecular weight (294.21 g/mol), melting point (196-198 °C), and density (1.406 g/cm³). These parameters are vital for process engineers to accurately calculate reaction stoichiometry, determine optimal processing temperatures, and design equipment. As a supplier, we ensure these technical details are readily available to our clients.

When sourcing a-BPDA, especially from manufacturers in China, it is important to look for suppliers who offer robust packaging and reliable shipping. Proper handling and storage are key to maintaining the integrity of this chemical intermediate. We provide comprehensive product information, including safety data sheets (SDS) and Certificates of Analysis (CoA), to support your due diligence and application development. Requesting a quote for a-BPDA is the first step towards securing a high-quality, reliable supply for your manufacturing needs.

By focusing on these critical specifications—appearance, purity, and detailed technical data—chemical buyers can make informed decisions, ensuring they purchase the highest quality a-BPDA for their demanding industrial applications. Partner with us for a consistent and superior supply.