For research scientists and product formulators in the chemical industry, a deep understanding of a compound's properties is essential for unlocking its full potential. Polymerized Ferric Sulfate (PFS), with CAS number 10028-22-5, is a prime example of an advanced inorganic polymer coagulant whose chemical characteristics make it invaluable across numerous industrial sectors, most notably in water treatment.

Chemical Profile: What Makes PFS Stand Out?

Polymerized Ferric Sulfate is characterized by its yellow to yellowish-brown powder appearance. Its molecular formula, Fe2O12S3, hints at its complex polymeric nature. Unlike simple ferrous sulfate, PFS contains polynuclear complex iron ions. These ions are critical to its performance as a coagulant. They possess a strong ability to neutralize the charges on suspended particles in water, effectively reducing the micelle potential. This process, coupled with its wide pH applicability (ranging from 4-11, with optimal results between pH 6-9), allows for efficient destabilization of colloids and formation of large, easily settled flocs.

Key chemical properties that make PFS a superior choice include:

  • High Ferric Content: Typically around 19.0% or higher, ensuring potent coagulating action.
  • Low Insoluble Substance: Minimizes residue and ensures cleaner water treatment.
  • Controlled Basicity and pH: The specific basicity (around 14.0%) and the resulting mildly acidic pH (2.4 for a 1% solution) are optimized for effective flocculation without causing significant pH fluctuations that would require extensive post-treatment adjustments.
  • Strong Adsorption Capacity: The large specific surface area of the hydrolyzed flocculent iron carbonyl compounds allows for superior adsorption of impurities.

Diverse Industrial Applications for PFS

The chemical properties of Polymerized Ferric Sulfate translate directly into its broad application spectrum. As a chemical manufacturer, knowing where your products fit in the market is crucial. PFS is primarily sought after as:

  • A Water Purification Agent: It is extensively used in the purification of drinking water, industrial water, and various industrial wastewaters. Its efficacy in removing turbidity, color, odor, and heavy metals makes it a staple in municipal and industrial water treatment plants.
  • A Sludge Dewatering Agent: PFS aids in the dewatering of sludge, a critical step in wastewater management that reduces volume and handling costs.
  • A Component in Pigment and Dye Production: Its iron content makes it useful in the manufacturing of certain pigments and as a mordant in dyeing processes.
  • A Reagent in Chemical Analysis: PFS finds applications in specific analytical procedures, such as the analysis of silver and the determination of sugar content.

Sourcing High-Quality Polymerized Ferric Sulfate

For R&D professionals and procurement specialists, sourcing reliable, high-purity Polymerized Ferric Sulfate is essential. When looking to buy this chemical, consider its specifications carefully. A reputable manufacturer or supplier will provide detailed Certificates of Analysis, ensuring the product meets all necessary quality standards. Understanding the price of Polymerized Ferric Sulfate in relation to its performance is key to making informed purchasing decisions.

In summary, the chemical structure and properties of Polymerized Ferric Sulfate make it an indispensable tool for modern industrial processes, particularly where water quality is a concern. Its ability to deliver efficient and cost-effective results solidifies its position as a valuable commodity for chemical distributors and end-users alike.