Understanding PAC Specifications: A Guide for Chemical Buyers
For procurement managers and chemical engineers in the water treatment industry, understanding the precise specifications of Poly Aluminum Chloride (PAC) is crucial for selecting the most effective and cost-efficient product. As a leading manufacturer and supplier of water treatment chemicals, NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing clarity on these vital parameters. This guide aims to equip buyers with the knowledge to confidently source PAC and discuss their needs with their chosen supplier.
The primary indicators of PAC quality and performance are its Al2O3 content and basicity. The Al2O3 content, typically expressed as a percentage, reflects the total aluminum oxide concentration in the product. Higher Al2O3 content generally signifies a more concentrated and potent coagulant. For instance, Poly Aluminum Chloride 30% and 31% are common specifications, indicating the minimum percentage of Al2O3. These values directly influence the dosage required to achieve desired treatment outcomes.
Basicity is another critical parameter, often expressed as a percentage, which refers to the degree of hydrolysis of the aluminum species. It is defined as the molar ratio of hydroxyl ions (OH-) to aluminum ions (Al3+). A higher basicity indicates a greater proportion of polynuclear aluminum complexes, which are generally more effective in charge neutralization and bridging mechanisms. For example, a basicity of 70-80% is common for many industrial and drinking water applications, offering a good balance of coagulant strength and stability. Understanding the basicity of the PAC you buy is key to optimizing its performance in your specific water treatment application.
The pH of the PAC solution is also an important factor. Most PAC products are acidic, typically with a pH range of 3.5-5.0 for a 1% solution. This inherent acidity can sometimes contribute to pH adjustment in the treated water, though it’s always recommended to monitor and adjust pH independently for optimal flocculation and to meet discharge or potability standards. When sourcing Poly Aluminum Chloride for drinking water, stringent control over pH and other impurities is paramount. As a responsible China manufacturer, NINGBO INNO PHARMCHEM CO.,LTD. ensures our products meet these exacting requirements.
When you contact a Poly Aluminum Chloride supplier or manufacturer, be prepared to discuss these specifications in detail. Clearly stating your required Al2O3 content, basicity, and any other relevant parameters (like water insolubles or specific impurity limits) will help them provide the most suitable product. We encourage you to inquire about our industrial wastewater treatment flocculant manufacturer capabilities and our offerings for drinking water. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing high-quality PAC with transparent specifications at competitive prices. Request a quote and samples to verify our product quality and suitability for your needs.
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