For professionals in the chemical and materials science industries, a deep understanding of chemical compounds is essential for innovation and quality control. Piperazine Pyrophosphate (PAPP), identified by CAS number 66034-17-1, is a compound of significant interest, primarily for its application as a high-performance, halogen-free flame retardant. This article delves into the chemical aspects of PAPP, its synthesis, properties, and the importance of sourcing high-purity grades from reliable manufacturers.

Piperazine Pyrophosphate is synthesized through the reaction of piperazine with pyrophosphoric acid or its salts. Various synthesis routes exist, often involving precipitation reactions in aqueous solutions followed by drying. For instance, one common method involves reacting piperazine with sodium pyrophosphate in an aqueous medium, followed by acidification. Another approach utilizes ammonium dihydrogen phosphate and piperazine, where heating drives off ammonia and promotes condensation to form PAPP. The specific synthesis conditions, including temperature, pH, and reactant ratios, are critical for achieving high purity and desired particle characteristics, such as an average particle size of 10-12 μm, as reported by some manufacturers.

Chemically, PAPP is characterized by its nitrogen-phosphorus content, which is fundamental to its flame retardant activity. The compound typically exhibits a white powder appearance, with specific gravity around 1.5-1.7 g/cm³. Its decomposition temperature is notably high, often exceeding 280°C, which is crucial for its stability during polymer processing. The typical phosphorus content ranges from 18-25%, and nitrogen content from 10-21%, depending on the specific grade and manufacturer. These properties, including a low moisture content (typically ≤0.5%), make it a stable and effective additive.

As a flame retardant, PAPP operates via an intumescent mechanism. Upon thermal exposure, it decomposes to release non-combustible gases (like ammonia and water) and promotes the formation of a stable carbonaceous char layer. This char acts as an insulating barrier, preventing heat transfer and oxygen access to the polymer, thus suppressing combustion. Its efficiency in forming this char layer makes it particularly valuable in polymers like polypropylene (PP), polyethylene (PE), EPDM, and TPE, where it can contribute to achieving UL94 V-0 ratings. The advantage of being halogen-free means it avoids the generation of corrosive and toxic halogenated by-products, a significant environmental and safety benefit.

For chemical buyers and formulators looking to buy Piperazine Pyrophosphate, partnering with a trusted Piperazine Pyrophosphate supplier in China is essential. Manufacturers like NINGBO INNO PHARMCHEM CO.,LTD. focus on producing high-purity PAPP, ensuring consistent chemical composition and physical properties. This consistency is vital for predictable performance in complex polymer formulations. We offer competitive CAS 66034-17-1 flame retardant price, reflecting our commitment to providing value alongside quality. As a leading halogen-free flame retardant manufacturer, we adhere to rigorous quality control standards.

Understanding the chemical intricacies of PAPP allows formulators to optimize its use and achieve the best possible flame retardant performance in their products. We are a dedicated high purity PAPP manufacturer, and we invite you to contact us for detailed technical data sheets, samples, and a quotation. Elevate your material safety standards with our advanced chemical solutions.