Ferric ferrocyanide, widely recognized as Pigment Blue 27 or Prussian Blue, is a synthetic inorganic pigment that has been a staple in various industries for centuries. Its distinctive deep blue color and robust performance characteristics make it an invaluable material for manufacturers. As a leading producer and supplier, understanding the intricate properties of ferric ferrocyanide is central to guiding our customers towards optimal applications and ensuring product satisfaction. This article provides a technical overview for R&D scientists and procurement managers seeking to buy this versatile chemical.

At its core, ferric ferrocyanide is a complex salt with the chemical formula often simplified as Fe4[Fe(CN)6]3·xH2O. This intricate structure imbues it with unique attributes. Chemically, it demonstrates excellent stability in the presence of weak acids, a significant advantage in many industrial formulations. However, a key limitation to be aware of is its poor resistance to alkalis; exposure to alkaline conditions can cause it to decompose into brown iron hydroxide. This characteristic dictates its suitability for specific manufacturing processes and environments. Manufacturers must carefully consider the pH of their formulations and substrates when using this pigment.

Physically, Pigment Blue 27 is typically supplied as a fine powder, varying in hue from a deep blue to a greenish-blue, depending on the manufacturing process and specific grade. Its high tinting strength means a small amount of pigment can impart significant color, offering economic advantages in formulations. The pigment also boasts commendable lightfastness and weather resistance, ensuring the longevity and vibrancy of the color in end products exposed to sunlight and varying environmental conditions. This durability is a critical factor for applications in paints, coatings, and even certain plastics.

The manufacturing process for ferric ferrocyanide is a precise chemical synthesis. Historically discovered through serendipitous reactions, modern production involves carefully controlled precipitation and oxidation steps. As a manufacturer, we adhere to strict protocols to ensure the purity and consistency of our Pigment Blue 27. This includes managing particle size distribution, which affects gloss, transparency, and dispersibility, and ensuring minimal impurities that could compromise performance.

While Pigment Blue 27 is highly versatile, its limitations must be acknowledged. It is generally not recommended for coloring PVC plastics due to a potential degradation effect. However, it finds effective use in coloring polyethylene and other polymers. Its utility extends to printing inks, artistic paints, and various industrial coatings. For professionals seeking to buy reliable ferric ferrocyanide, engaging with a manufacturer that provides detailed technical specifications and application guidance is essential. We are committed to supplying high-quality Pigment Blue 27 and offering the technical expertise to help you leverage its properties effectively. Contact us to learn more about our product grades and to discuss your specific industrial needs.