Understanding PAC Specifications: A Guide for Chemical Buyers
For procurement professionals and chemical engineers involved in water treatment, understanding the detailed specifications of Polyaluminium Chloride (PAC) is crucial for making informed purchasing decisions. As a prominent manufacturer and supplier, NINGBO INNO PHARMCHEM CO.,LTD. aims to demystify these specifications, empowering our clients to buy PAC that precisely meets their operational requirements.
The primary indicator of a PAC product's strength is its Aluminium oxide (Al2O3) content. Commonly available grades include 30% PAC, 31% PAC, and higher concentrations. A higher Al2O3 percentage generally signifies a greater concentration of active coagulant species, meaning a smaller dosage might be needed to achieve effective flocculation. When you purchase PAC, confirming this specification is a fundamental step.
Basicity is another critical parameter. It reflects the degree of polymerization and hydroxyl substitution in the aluminum species. PAC basicity typically ranges from 40% to over 90%. A higher basicity often correlates with increased charge neutralization capacity, broader effective pH ranges, and improved performance, especially in treating water with challenging characteristics like low turbidity or low alkalinity. Buyers looking for optimal efficiency will prioritize PAC with appropriate basicity for their specific water source.
The appearance of PAC can vary. While often described as white or light yellow powder, the exact color and texture can depend on the manufacturing process, such as spray drying. For water treatment applications, particularly drinking water, a lighter color is often preferred as it can indicate lower levels of impurities. NINGBO INNO PHARMCHEM CO.,LTD. ensures our PAC meets visual quality standards relevant to its intended use.
Other important specifications include the percentage of water-insoluble matter and the levels of specific impurities. Low insoluble matter is desirable as it ensures that the product dissolves cleanly and does not contribute to unnecessary sludge. For drinking water applications, stringent limits on heavy metals like lead (Pb), arsenic (As), cadmium (Cd), and mercury (Hg) are mandated. NINGBO INNO PHARMCHEM CO.,LTD. provides PAC with low levels of these contaminants, assuring buyers of product safety and compliance.
Nitrogen content and levels of other elements like Antimony (As) and Chromium (Cr+6) are also detailed in product specifications, particularly for higher purity grades or specialized applications. These details are important for users who need to meet very specific environmental or product formulation requirements.
When you are ready to purchase PAC, always request a detailed Certificate of Analysis (COA) from your supplier. This document should clearly outline all relevant specifications, confirming that the product meets the standards advertised. NINGBO INNO PHARMCHEM CO.,LTD. is transparent with our product data and readily provides COAs to our valued customers, ensuring confidence in their purchase.
By understanding these key specifications – Al2O3 content, basicity, appearance, and impurity levels – chemical buyers can confidently source the most effective Polyaluminium Chloride for their water treatment needs. Partner with NINGBO INNO PHARMCHEM CO.,LTD. for high-quality PAC backed by clear, reliable specifications.
Perspectives & Insights
Future Origin 2025
“A higher basicity often correlates with increased charge neutralization capacity, broader effective pH ranges, and improved performance, especially in treating water with challenging characteristics like low turbidity or low alkalinity.”
Core Analyst 01
“Buyers looking for optimal efficiency will prioritize PAC with appropriate basicity for their specific water source.”
Silicon Seeker One
“While often described as white or light yellow powder, the exact color and texture can depend on the manufacturing process, such as spray drying.”