Hexahydrophthalic Anhydride (HHPA), known chemically by CAS 85-42-7, is a cycloaliphatic anhydride with a unique set of chemical properties that make it an indispensable intermediate in various industrial sectors. Its molecular structure and reactivity lend themselves to a wide array of applications, from advanced coatings to robust electronic materials. As a dedicated chemical supplier, we aim to illuminate the significance of HHPA for formulators and manufacturers.

The chemical formula for HHPA is C8H10O3, with a molecular weight of 154.16 g/mol. It typically appears as a white solid with a melting point ranging from 32-38°C. Its solubility in common organic solvents such as benzene, toluene, acetone, and ethanol, coupled with slight solubility in petroleum ether, facilitates its incorporation into various reaction mixtures and formulations. Key properties include a density of approximately 1.18-1.19 g/mL at 40°C and a boiling point of around 145°C at 18 mmHg. These characteristics are vital for R&D scientists evaluating its suitability for specific processes.

One of HHPA's most significant applications is its role as an epoxy resin curing agent. In this capacity, it imparts excellent mechanical properties, superior electrical insulation, and strong chemical corrosion resistance to cured epoxy systems. The low shrinkage rate during curing, compared to other agents, is a critical advantage for precision applications in electronics, such as encapsulating sensitive components or manufacturing PCBs. For businesses looking to buy these enhanced epoxy systems, securing HHPA from a reliable manufacturer is a strategic decision.

Beyond its use in epoxies, HHPA serves as a valuable polyester resin modifier. It effectively reduces the crystallinity of polyester resins, thereby improving their transparency and flexibility. This enhancement is crucial for coatings, inks, and adhesives, where improved film formation, adhesion, and weather resistance are desired. Furthermore, HHPA finds application as a plasticizer in the plastics industry, particularly for PVC, enhancing product flexibility and low-temperature performance.

As a manufacturer and supplier committed to quality, we ensure that our HHPA products meet high purity standards. We encourage industry professionals to consider HHPA for its versatility and performance-enhancing capabilities. Understanding the chemical properties of HHPA is the first step towards optimizing its application in your next innovative product. We invite you to contact us for inquiries on pricing and availability to procure this essential chemical intermediate.