For chemical professionals involved in product development, formulation, or research, a thorough understanding of a chemical's properties is fundamental. Perfluoropropionic Acid (PFPrA), identified by CAS number 422-64-0, is a fluorinated carboxylic acid with a distinct set of characteristics that dictate its utility and handling. This article delves into the key properties of PFPrA, providing insights valuable for procurement managers and R&D scientists looking to source this specialized compound from reliable manufacturers.

Physically, Perfluoropropionic Acid is described as a clear, colorless to slightly brown liquid at room temperature. It possesses a relatively low boiling point of approximately 96-97 °C. Its density is around 1.561 g/mL at 25 °C, and its refractive index is reported to be approximately 1.284. These physical attributes are important considerations for storage, handling, and process design. The compound is also noted to be hygroscopic, meaning it readily absorbs moisture from the air, necessitating storage in tightly sealed containers in a dry environment.

Chemically, PFPrA is a strongly acidic compound, with a pKa value of around 0.38 ± 0.10 (predicted). This acidity makes it an effective catalyst and reactive intermediate. Its solubility profile indicates good solubility in water and polar organic solvents, which is advantageous for its use in various reaction media and analytical applications. The perfluorinated nature of the molecule imparts significant stability, though like many strong acids, it is corrosive and requires careful handling. Safety data sheets (SDS) provide comprehensive information on its hazards and recommended protective measures.

When sourcing Perfluoropropionic Acid, understanding these properties helps in selecting the right grade and supplier. Manufacturers often specify purity levels, typically around 97% or 98% or higher, often verified by GC analysis. For critical applications, it is advisable to buy from suppliers who can guarantee consistent quality and provide detailed technical specifications. The supply of PFPrA is managed by various chemical manufacturers globally, with China being a significant source for many fine chemicals. Ensuring a stable supply chain involves vetting suppliers for their production capacity, quality control systems, and logistical capabilities.