While Polyaluminium Chloride (PAC) is primarily renowned for its exceptional performance in water and wastewater treatment, its unique chemical properties lend themselves to a surprising array of applications as a versatile chemical auxiliary in various industrial sectors. For procurement managers and R&D scientists exploring new material functionalities, understanding the broader utility of PAC can unlock innovative solutions. This article highlights these diverse applications and guides professionals on how to buy PAC for these specialized roles.

PAC in the Paper Industry

In paper manufacturing, PAC serves several critical functions:

  • Sizing Agent: PAC is used in internal sizing to impart water resistance to paper. It works by reacting with rosin sizing agents to form aluminum rosinate, which precipitates onto the paper fibers, enhancing their hydrophobicity.
  • Retention and Drainage Aid: Its ability to neutralize charges and form flocs helps in retaining fine fibers and fillers within the paper web, while also improving water drainage during the papermaking process. This leads to increased production efficiency and better paper quality.
  • pH Control: PAC can help maintain the optimal pH range for papermaking processes, which is crucial for the efficient performance of other additives.

When considering to buy PAC for papermaking, buyers should look for grades with specific particle sizes and purity levels suited for this industry.

PAC in Leather Tanning and Finishing

The leather industry utilizes PAC as a tanning agent and in finishing processes:

  • Chrome-Free Tanning: PAC can be used as a tanning agent, often in combination with other chemicals, to produce leather with good fullness and a soft feel, offering an alternative to chrome tanning.
  • Finishing: In leather finishing, PAC can contribute to the properties of coatings, improving adhesion and durability.

The specific requirements for leather processing mean that buyers should consult with suppliers about appropriate PAC specifications.

PAC in Cosmetics and Personal Care

Certain grades of PAC find applications in the cosmetics industry, primarily as astringents:

  • Antiperspirants: Aluminum-based compounds, including certain forms of polyaluminum chloride, are used in antiperspirant formulations due to their ability to temporarily block sweat ducts. Strict regulatory compliance and high purity are essential for cosmetic-grade ingredients.

Sourcing cosmetic-grade PAC requires working with suppliers who can guarantee the highest purity and adherence to safety standards.

Other Industrial Applications

  • Catalyst Support: In some chemical processes, PAC or its derivatives can be used as catalyst supports.
  • Textile Auxiliaries: PAC can be used as a mordant in textile dyeing, helping to fix dyes to the fabric.

Sourcing PAC for Diverse Applications

For professionals looking to buy PAC for these varied applications, it is vital to partner with experienced manufacturers and suppliers who understand the specific quality requirements for each industry. Factors such as purity, particle size, basicity, and regulatory compliance are critical. If you are seeking a reliable PAC supplier and manufacturer in China, engaging with companies that can provide detailed technical data and offer customized solutions will be most beneficial.

Conclusion

Polyaluminium Chloride is far more than just a water treatment chemical. Its versatility as a chemical auxiliary in industries ranging from papermaking to cosmetics underscores its importance in modern industrial processes. By understanding its diverse applications and sourcing from quality-conscious manufacturers, businesses can leverage PAC to enhance their products and processes.