Polyaluminum Chloride (PAC) is a vital chemical compound, indispensable for effective water treatment across numerous industries. For businesses worldwide, sourcing PAC efficiently and reliably is crucial for maintaining operational continuity and meeting environmental standards. China has emerged as a significant global hub for PAC production, offering competitive pricing and a wide range of product grades. This guide aims to assist procurement managers and R&D professionals in successfully buying Polyaluminum Chloride from China manufacturers.

Understanding PAC: Grades, Specifications, and Applications

Before initiating a purchase, it’s essential to understand the different types of PAC and their suitability for your specific needs. The most common distinctions are based on color (white vs. yellow) and application (drinking water vs. industrial wastewater). White PAC, with its higher purity and typically lower basicity (e.g., 45-55%), is preferred for potable water treatment due to its food-grade compliance and minimal impurities. Yellow or pale yellow PAC, often with higher basicity (e.g., 70-80%) and produced via spray-drying, is highly effective and cost-efficient for industrial wastewater treatment, paper manufacturing, and other industrial applications.

Key specifications to scrutinize when buying PAC include:

  • Al2O3 Content: This indicates the concentration of active aluminum oxide, a primary indicator of PAC's strength.
  • Basicity: As discussed previously, basicity affects the degree of polymerization and thus coagulant efficiency.
  • Water Insolubles: Lower percentages of insoluble matter ensure better product performance and less residue.
  • pH Value: The typical pH range for PAC solutions is 3.5-5.0.
  • CAS Number: For PAC, this is commonly 1327-41-9.
  • Certifications: For drinking water applications, look for certifications like NSF, WQA, ISO, or REACH compliance.

Navigating the Procurement Process: Key Steps

  1. Identify Reputable Manufacturers: Utilize platforms like Alibaba, Made-in-China, or industry-specific directories to find established PAC manufacturers in China. Look for suppliers with good reviews, audited supplier status, and a history of reliable export.
  2. Request Quotes and Samples: Contact multiple manufacturers to obtain competitive quotes. Crucially, request samples for laboratory testing. This is the most critical step to verify product quality, performance, and consistency against your specifications.
  3. Evaluate Product Performance: Conduct thorough jar tests with the samples received. Assess floc formation, sedimentation rate, turbidity reduction, and any impact on pH. Compare the results against your baseline requirements and other samples.
  4. Negotiate Terms and Pricing: Once you have identified a preferred supplier, negotiate pricing based on order volume, payment terms (e.g., L/C, T/T), and Incoterms (e.g., FOB, CIF).
  5. Verify Quality Control and Certifications: Ensure the manufacturer has robust quality control measures in place and can provide necessary certifications for your target market. Ask about their production capacity and lead times.
  6. Logistics and Shipping: Clarify packaging options (e.g., 25kg bags, ton bags, IBC tanks), shipping methods, and estimated delivery times. Work with your supplier to arrange freight and handle customs documentation.
  7. Establish a Long-Term Relationship: Building a strong relationship with a reliable supplier can lead to better pricing, preferential treatment, and access to new product developments.

Why Partner with Us?

As a leading manufacturer and supplier of Polyaluminum Chloride in China, we are dedicated to providing high-quality products that meet stringent international standards. We understand the procurement challenges faced by global buyers and offer transparent pricing, reliable quality control, and efficient logistics. Whether you are looking to buy white PAC for drinking water or yellow PAC for industrial needs, we are your trusted partner. Contact us today to request a quote, obtain samples, and discuss how we can meet your PAC supply requirements.