• Purifying agent in pharmaceutical industry, special in antibiotic medication, such as Oxytetracycline , Chloramphenicol , etc;
• Precipitating agent in Rare-earth mineral processing;
• Bleaching agent in the textile activities, wood pulp bleaching;
• Rust-remover for Metal treatment;
   
• Grinding agent, such as Marble polishing;
   
• Waste water treatment, removing calcium from water.