Premium grade polymeric compounds designed for rapid flocculation, drinking water purification, and complex wastewater processing.
A comprehensive review of the physical chemistry, basicity optimization, and supply-chain logistics driving modern industrial water treatment.
For decades, conventional metal salts like aluminum sulfate (alum) and ferric chloride served as the default standard for industrial coagulation. However, the physical mechanics of water purification require swift colloidal neutralization. This is where Polyaluminum Chloride (PAC) provides superior technical performance. Unlike alum, which hydrolyzes into unstable monomeric units, PAC consists of pre-polymerized, highly charged oligomers of aluminum, primarily the Al13 polycation complex ($\text{Al}_{13}\text{O}_4(\text{OH})_{24}^{7+}$).
This pre-polymerized structure yields major advantages:
Basicity represents the degree of hydroxyl substitution relative to aluminum ions: $\text{Basicity} = [\text{OH}] / [3\text{Al}] \times 100\%$. Typically, high basicity (65%–90%) indicates a highly polymerized structure with lower acid content, perfect for treating cold, low-turbidity raw waters.
Purchasing managers must evaluate PAC based on active alumina content ($\text{Al}_2\text{O}_3$), basicity, and water-insoluble matter. The table below highlights the performance indicators for premium PAC formulations:
| Parameters | Drinking Water Grade (High Purity) | Industrial Wastewater Grade | Composite PAC / PAFC Grade |
|---|---|---|---|
| Al2O3 Content (Min) | 29.0% – 30.5% (Powder) | 27.0% – 29.0% (Powder) | 26.0% – 28.0% (Powder) |
| Basicity (%) | 45.0% – 85.0% | 50.0% – 90.0% | 60.0% – 90.0% |
| Insolubles (Max) | 0.1% – 0.3% | 0.5% – 1.5% | 1.0% – 2.0% |
| Heavy Metal Limits | Strict limits (As, Pb, Cd conforming to NSF/ANSI 60) | Standard environmental regulatory compliance | Wastewater-specific parameters |
| Primary Synthesis Route | Hydroxide slurry + High-purity Hydrochloric Acid | Bauxite processing + Hydrochloric Acid digestion | Co-polymerization with ferric and polymeric catalysts |
The manufacturing economics of PAC are closely tied to raw material inputs, such as raw aluminum hydroxide and high-quality hydrochloric acid (HCl). Supply changes in these base materials directly affect international pricing. Large buyers must consider both product chemistry and regional logistics when planning their supply chains:
Leveraging state-of-the-art production technologies to deliver tailored industrial coagulants globally.
Founded in 1998, Wuxi BS Water Treatment Chemicals Co., Ltd. has established itself as an industry leader in manufacturing water treatment chemicals. Located near the industrial hub of Wuxi, our facilities are equipped with automated production lines and comprehensive quality control labs. We specialize in developing and manufacturing water treatment products for municipal drinking water plants and various domestic and industrial wastewater facilities.
Through decades of refining our production processes, we ensure consistent chemical properties across all our PAC powder and liquid batches. This stability minimizes dosage variance for large-scale operations.
Tailoring polymer structures to meet the specific operational demands of diverse industrial applications.
Providing specialized services from water quality testing to custom polymer formulations.
Our lab technicians provide full-cycle water analysis to determine the optimal dosage, basicity, and active content tailored to your facility's unique raw water conditions.
With an annual output exceeding 500,000 tons and a dedicated 20,000-ton warehouse, we guarantee stable chemical supply and timely shipments even during peak demand cycles.
We implement strict quality assurance steps at every stage—from bauxite digestion to spray drying—to prevent caking and ensure quick dissolving times.
A look at Wuxi BS Water Treatment's development, growth, and expanding global footprint.
Our commitment to developing sustainable, highly efficient, and smart chemical systems.
Modern industrial plants require coagulants that minimize sludge footprint and heavy metal profiles. The Wuxi BS R&D team focuses on two main development initiatives:
Our chemical formulations are optimized to work with digital telemetry systems. These systems monitor raw water turbidity in real time to prevent chemical overdosing.
Our polymeric iron-aluminum hybrids are designed to perform effectively in low-temperature waters, speeding up settling times.
We continue to modify polymer chain structures to increase coagulation density, reducing sludge treatment costs for our customers.
Expert answers to common procurement, storage, and application questions about Polyaluminum Chloride.
Explore our complete selection of coagulants, decolorizers, and cationic/anionic polymer formulations.
Our production facilities maintain complete compliance with global environmental and quality benchmarks.
Verified quality management systems covering all polymerization and packaging processes.
Eco-friendly chemical processing that minimizes environmental impact during production.
Ensuring safe chemical handling and processing environments for our technical team.
Fulfilling stringent global regulatory guidelines for imports into Europe and the Americas.
Need help selecting the right chemical grades or looking for custom PAC formulations? Contact our technical team for product specifications, material safety data sheets (MSDS), and bulk wholesale pricing.
Keep up with our latest water treatment technology developments and chemical processing news.
BS Water
