1). Purifying agent in pharmaceutical industry, special in antibiotic medication, such as oxytetracycline, Chloramphenicol etc;

2). Precipitating agent in Rare-earth mineral processing;

3). Bleaching agent in the textile activities, wood pulp bleaching;

4). Rust-remover for metal treatment;

5). Grinding agent, such as marble polishing;

6). Waste water treatment, removing calcium from water.