Product Description Aluminium Sulfate is used in water purification and as a mordant in dyeing and printing textiles. In water purification, it causes impurities to coagulate which are removed as the particulate settles to the bottom of the container or more easily filtered. This process is called coagulation or flocculant. Technical Specifications: Fe-free type (%)Al2O3 % min; 16.0Fe % max; 0.003PH (1% water solution); 3Water insolubility %; 0.006Technical Specifications: Lower grade (%)Al2O3 % min; 15.8Fe % max; 0.007PH (1% water solution); 3Water insolubility %; 0.3Aluminium Sulfate with 25g, 50g, 100g, 125g, 200g, 500g tablets or circular cylinder and cuboidPacking: 50kg bag or plastic drum