Poly Aluminium Chloride (PAC) has become a cornerstone in modern water treatment due to its potent coagulating properties and favorable performance characteristics. Understanding its chemical nature is key for procurement managers and R&D scientists to leverage its benefits effectively. As a leading chemical manufacturer and supplier, we aim to provide a clear insight into the science behind PAC and why it's a superior choice for water purification.

Chemical Composition and Structure of PAC

PAC is an inorganic polymer coagulant with the general chemical formula [Al2(OH)nCl6-n]m. This formula indicates a complex structure where aluminum ions are linked by hydroxyl bridges, forming polymeric chains or rings. The 'n' represents the degree of basicity, which significantly influences PAC's effectiveness. Higher basicity generally means a higher degree of polymerization and more effective charge neutralization and bridging action on suspended particles in water.

Compared to traditional inorganic coagulants like Aluminum Sulfate (Alum), PAC offers several chemical advantages. Its polymeric nature allows it to neutralize charges more efficiently and form larger, denser flocs. This rapid flocculation process, even at lower temperatures and across a broader pH range (typically 5.0-9.0 for optimal performance), translates to faster sedimentation and clearer supernatant water. This means you can often achieve better results with lower dosages, making it a cost-effective solution when you buy Poly Aluminium Chloride.

Key Benefits for Water Purification

The unique chemical properties of PAC translate into tangible benefits for water treatment facilities:

  • High Efficiency: PAC excels at removing turbidity, suspended solids, color, and even trace amounts of heavy metals and organic pollutants. Its powerful charge neutralization and bridging capabilities lead to exceptional water clarification.
  • Reduced Sludge Production: Compared to alum, PAC generates significantly less sludge. This translates to lower disposal costs and a reduced environmental footprint for treatment plants.
  • Wide Applicability: PAC performs effectively across a broad range of water conditions, including low-temperature and low-turbidity waters, where other coagulants might struggle.
  • Improved Efficiency: The rapid floc formation and sedimentation often result in shorter treatment times and increased throughput capacity for treatment facilities.
  • Lower Dosage Requirements: Due to its high molecular weight and charge density, PAC typically requires lower dosages to achieve the same level of purification compared to conventional coagulants.

As a manufacturer and supplier of Poly Aluminium Chloride, we are committed to producing PAC that meets stringent quality standards. Our products are designed for optimal performance, whether for potable water treatment, industrial wastewater management, or specialized applications like papermaking. If you are looking to purchase PAC and enhance your water purification processes, understanding these chemical benefits highlights why PAC is often the preferred choice. Contact us to explore our range of PAC products and discuss pricing for your specific needs.