Poly Aluminium Chloride (PAC), identified by its CAS number 1327-41-9, is a highly effective inorganic polymer coagulant widely recognized for its pivotal role in water purification and various industrial applications. Typically appearing as a yellow or white powder in its solid form with an Al2O3 content of at least 30%, PAC offers significant advantages in treating diverse water sources. Its unique polymeric structure, characterized by the formula [Al2(OH)LnCl6-N]M, enables superior coagulation and flocculation processes.

One of the primary benefits of Poly Aluminium Chloride is its exceptional coagulation efficiency across a broad pH range, typically effective between 5.0 and 9.0, with optimal performance observed from 6.5 to 7.6. Unlike traditional coagulants such as aluminum sulfate (alum), PAC often requires a lower dosage, leading to reduced sludge volume and minimal impact on the treated water's pH, which often eliminates the need for additional pH adjustment chemicals. Furthermore, PAC exhibits excellent performance even at low water temperatures, where alum-formed flocs tend to settle much slower. This ensures consistent and reliable water treatment regardless of environmental conditions.

The versatility of Poly Aluminium Chloride extends beyond municipal and industrial water treatment. It is extensively utilized for the purification of river water, lake water, underground water, and industrial recycling water. In wastewater treatment, PAC proves highly effective in purifying effluents from industries such as printing and dyeing, leather, brewing, meat processing, coal washing, metallurgy, mining, and pharmaceuticals. It is particularly adept at removing suspended solids, colors, odors, heavy metals, and oil from contaminated water. Beyond water purification, PAC finds applications in the pulp and paper industry as a sizing agent and retention aid, in the oil and gas sector for destabilizing oil-water emulsions, and even in the cosmetic industry as an active ingredient in antiperspirants. Its ability to solidify cement, aid in molding, and refine pharmaceuticals, glycerin, and sugar further highlights its broad utility.

Proper application of Poly Aluminium Chloride is crucial to maximize its efficacy. Users can either directly add the solid product to the water body or prepare it as a solution for dosage. A preliminary jar test is highly recommended to determine the optimal dosage for specific water conditions, as factors like water temperature and pH significantly influence coagulation. Controlling the pH value of the water within the recommended range enhances PAC's coagulation effect. Adequate mixing and stirring are also vital to ensure full contact between PAC and the contaminants, leading to the formation of larger, easily settleable flocs. When combining PAC with other agents, it is generally advised to add the coagulant first, followed by any coagulant aids.

To maintain its effectiveness, Poly Aluminium Chloride should be stored in a dry, cool, and well-ventilated environment, kept sealed to prevent moisture absorption and caking. It is essential to store PAC away from heat sources and direct sunlight, and to avoid mixing it with toxic or harmful substances. Regular inspections for agglomeration or discoloration are also recommended. NINGBO INNO PHARMCHEM CO.,LTD. is a reputable manufacturer and supplier of high-quality Poly Aluminium Chloride (PAC) 30% solid. For those looking to buy or purchase this essential water treatment chemical, competitive price options are available directly from the manufacturer. We ensure robust packaging, typically in 25kg net plastic woven bags with PE liners, facilitating secure transport and storage.