30% PAC Poly Aluminium Chloride with Dried Yellow Powder Factory Supply. High Purity Industrial Grade: Purity up to 31% with AL2O3 content of 29% minimum, meeting GB15892-2009 standards. Wide Application Scope: Suitable for drinking water, sewage, industrial wastewater, oil refining, and chemical industries. Fast Sample Delivery: Sample orders including 10KG delivered within 72 hours of payment. Standard Production Lead Time: Regular orders delivered within 7-10 days from payment date. Long Shelf Life: Product remains stable for 24 months when stored in dry, ventilated conditions. Optimal Basicity Ratio: Basicity index of 76% falls within the 40-90% range for effective coagulation. ISO Certified Quality: Manufactured under ISO certification standards for consistent product quality.