Understanding Poly Aluminium Chloride: CAS Number and Uses

Author: Hou

Jun. 30, 2026

Understanding Poly Aluminium Chloride: CAS Number and Uses

Poly Aluminium Chloride (PAC) is a widely used chemical compound, known for its versatile applications in various industries ranging from water treatment to cosmetics. As professionals and researchers seek to understand this compound better, one critical aspect often discussed is its CAS number, along with its myriad uses. This post aims to shed light on the characteristics of PAC, its CAS number, and its applications, making it a valuable resource for anyone interested in this important chemical.

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What is Poly Aluminium Chloride?

Poly Aluminium Chloride belongs to the family of coagulants and is primarily used in water treatment processes. It’s a versatile inorganic polymer, formed by reacting aluminum hydroxide with hydrochloric acid. Its effectiveness in coagulation makes it an essential ingredient in various filtration systems. The CAS number for poly aluminium chloride is 1327-41-9, which uniquely identifies this compound and allows for its easy classification in chemical databases.

The Importance of the CAS Number

The CAS (Chemical Abstracts Service) number is a unique numerical identifier that simplifies the process of referencing compounds across various platforms. For researchers, manufacturers, and consumers alike, knowing the poly aluminium chloride CAS number ensures accurate identification. This is particularly crucial in regulatory contexts, where safety and compliance standards necessitate precise chemical information. By searching with the CAS number, users can quickly access detailed information about PAC, including safety data sheets, regulatory status, and specific applications.

Applications of Poly Aluminium Chloride

Water Treatment

One of the primary uses of poly aluminium chloride is in water treatment facilities. It acts as a coagulant, helping to aggregate suspended particles and impurities, which can then be filtered out. The efficiency of PAC in this application is attributed to its ability to work effectively under varying pH levels, making it a preferred choice over traditional coagulants like alum.

Paper Production

In the paper manufacturing industry, PAC serves as a retention aid, enhancing the retention of filler and fiber within the paper. Its use improves the quality of the final product while also reducing waste by minimizing the loss of valuable materials during the production process. The role of poly aluminium chloride in paper production is therefore vital for both efficiency and sustainability.

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Industrial Applications

PAC is also used in a range of industrial processes beyond water treatment. In cosmetics and personal care products, for instance, it acts as an emulsifier and stabilizer, helping to enhance the texture and longevity of items like creams and lotions. Furthermore, industries involved in textile and dyeing processes utilize PAC as a flocculant to separate dyes and other contaminants from wastewater.

Advantages of Using Poly Aluminium Chloride

The advantages of using poly aluminium chloride extend beyond its effectiveness. For starters, it is often more cost-effective than traditional coagulants, making it an attractive alternative for businesses aiming to reduce operational costs. Additionally, PAC produces less sludge compared to other coagulants, which means easier disposal and reduced environmental impact.

Another benefit of PAC is its versatility; it is safe for use in potable water systems, provided that it meets regulatory standards. This makes it a trusted choice in municipalities and industries focusing on sustainable practices.

Conclusion

In conclusion, poly aluminium chloride is a critical compound with a wide range of uses that contribute to various industries, particularly water treatment and paper manufacturing. Understanding the poly aluminium chloride CAS number, which is 1327-41-9, provides essential insights into this compound for researchers and professionals alike. Its versatility, cost-effectiveness, and reduced environmental footprint make it an essential component in modern industry.

Interested in learning more about how poly aluminium chloride can benefit your specific applications? Don’t hesitate to explore further! Are you considering incorporating PAC into your processes? Please share your thoughts or questions in the comments below—we’d love to hear from you!

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