High-Purity Solvents, Water Treatments

Polyaluminum Chloride (PAC)

Polyaluminum Chloride, identified by CAS number 1327-41-9, is a highly efficient inorganic polymer coagulant widely utilized in water treatment processes and industrial applications. This versatile chemical compound is synthesized through the reaction of hydrochloric acid with aluminum-containing materials, resulting in a complex mixture of polymerized aluminum salts. PAC is characterized by its high charge density and bridge-forming capabilities, which facilitate the rapid destabilization of suspended colloidal particles. Unlike traditional coagulants like aluminum sulfate, PAC operates effectively across a broader pH range and produces significantly less sludge, making it a cost-effective and environmentally friendly alternative for municipal and industrial water purification. Its superior performance in low-temperature water and its ability to remove heavy metals and organic matter further distinguish it as a premier choice for ensuring water quality. Consequently, PAC remains a fundamental component in modern wastewater management, drinking water treatment, and various specialized manufacturing sectors requiring precise liquid-solid separation capabilities.

Attributes

Key Features and Benefits

High coagulation efficiency allows for lower dosages compared to traditional aluminum salts.
Rapid floc formation and settling speed reduce processing time in treatment plants.
Minimal impact on water pH minimizes the need for additional neutralizing chemicals.
Effective performance in low-temperature and high-turbidity water conditions.
Low residual aluminum levels ensure compliance with drinking water safety standards.
Reduced sludge volume lowers disposal costs and improves operational sustainability.
Highly stable shelf life in both liquid and powder forms simplifies storage.
Cost-effective performance across diverse industrial and municipal water treatment environments.
Superior purification results.
Enhanced safety.
Increased efficiency for all plant operators seeking quality.

Specifications

Technical Highlights

Chemical Formula: [Al2(OH)nCl6-n]m, representing a highly polymerized structure.
Basicity level typically ranges from 45% to 95% depending on specific grade.
Solubility in water is excellent, leaving negligible insoluble residue after dissolution.
Active content measured as Al2O3 percentage, commonly between 28% and 30%.
Operates efficiently within a pH range of 5.0 to 9.0.
Zeta potential neutralization mechanisms drive effective colloidal particle destabilization.
Molecular weight varies based on the degree of polymerization and manufacturing process
Available in spray-dried powder or liquid concentrates for diverse dosing requirements
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The specific gravity of liquid PAC is roughly 1.20 at ambient operating temperatures for standard formulations.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Purification of municipal drinking water for safe public consumption.
Treatment of industrial wastewater in textile, leather, and food processing.
Sizing agent in the paper and pulp industry to improve paper quality.
Oil-water separation in petroleum refining and petrochemical manufacturing processes.
Clarification of process water in the mining and coal washing sectors.
Removal of heavy metals and phosphates from specialized industrial effluent streams.
Cosmetic ingredient utilized in antiperspirants and deodorants for moisture control.
Pre-treatment for membrane filtration systems to prevent fouling and enhance efficiency.
Used in sugar refining and pharmaceutical clarification tasks.
Effective for swimming pool water flocculation to remove impurities.