Non-Ferric Aluminium Sulphate (Kibble) (Factory Direct Sale) Specification: Al2O3: 16%-17%; Fe:0.005% max; PH:3.0 min (1% water solution); Insoluble matter in water:0.1% max, As:0.0005% max;Pb:0.002% max; Granularity: 1-15mm or 1-4mm or 2-5mm or accroding to customers' requirement. Packing:50kg/bag,25kg/bag or Jumbo bag,25mt/20'FCL. Usage/Application: Aluminium sulphate is often used as flocculants for water purification,water treatment and sewage treatment,also used in paper making industry.