Polyaluminium Chloride (PAC) is a versatile and powerful chemical widely employed across various industries, particularly in water treatment and papermaking. For any professional dealing with PAC, whether in R&D, production, or procurement, a thorough understanding of its correct usage and storage is paramount for ensuring efficacy and safety. As a trusted manufacturer and supplier, we provide essential guidelines for handling this important industrial chemical.

Effective Usage of Polyaluminium Chloride (PAC)
The application of PAC typically involves either direct addition or the preparation of a solution for dosing. Both methods require careful attention to detail to achieve optimal results:

• Direct Addition: For certain applications, particularly with solid forms of PAC, direct addition to the water body is possible. The dosage should be carefully determined through preliminary tests, such as jar tests, to ascertain the most effective amount for the specific water quality and treatment goals.
• Solution Preparation: This is often the preferred method for ensuring consistent and efficient dispersion. When preparing a PAC solution, it is advisable to use warm water (around 40-60°C) to facilitate dissolution. Slowly add the PAC to the water while stirring continuously until it is completely dissolved. The concentration of the solution can be adjusted based on application requirements, but it is generally recommended to use prepared solutions within 24 hours to maintain their efficacy.

Crucial Precautions for PAC Application
To maximize the performance and safety of PAC, adhering to these precautions is vital:

• Jar Testing: Always perform jar tests to determine the optimal PAC dosage and understand its interaction with other chemicals in your system. This step is critical for efficient treatment and cost management.
• pH Control: PAC's effectiveness is pH-dependent. Ensure the water's pH is within the optimal range for coagulation. Adjustments may be necessary using acidic or alkaline substances depending on the initial water pH.
• Mixing and Stirring: Adequate mixing ensures that PAC disperses evenly and interacts with contaminants. Proper stirring time (typically 1-3 minutes) and speed are essential for forming effective flocs.
• Water Temperature: Be aware that water temperature can affect PAC's coagulation efficiency. Lower temperatures may slow down the process, while higher temperatures can enhance it.
• Dosing Sequence: When used with other treatment agents, ensure PAC is added at the correct stage in the process, often before flocculant aids, to achieve synergistic effects.

Safe Storage of Polyaluminium Chloride
Proper storage is key to maintaining PAC's quality and ensuring safety:

• Sealed Storage: Keep containers tightly sealed in a dry, cool, and well-ventilated area to prevent moisture absorption and potential caking, which can degrade product performance.
• Avoid Contamination: Store PAC away from incompatible materials, toxic substances, and direct sunlight or extreme temperatures.
• Moisture Prevention: Protect PAC from humidity. Avoid direct contact with the ground by using moisture-proof materials for isolation.
• Regular Inspection: Periodically check stored PAC for any signs of agglomeration or discoloration, and address issues promptly.
• Safety Equipment: Always wear appropriate personal protective equipment (PPE), such as gloves and protective clothing, when handling PAC. Ensure safety warning signs are clearly visible in the storage area.

As a leading Polyaluminium Chloride manufacturer and supplier, we are committed to providing our customers with not only high-quality products but also the knowledge to use them safely and effectively. When you buy PAC from us, you gain a partner dedicated to your success.

For expert advice on purchasing and utilizing PAC, contact our sales team today.