Oxalic Acid:
1. White crystals, soluble in water and ethanol, pyrolysis(meltingpoint: 101). Easily solube in water, toxic and corrosive.
2. Purifying agent in pharmaceutical industry, special in antibiotic medication, such as Oxytetracycline, Chloramphenicol, etc
3. Precipitating agent in Rare-earth mineral processing;
4. Bleaching agent in the textile activities, wood pulp bleaching;
5. Rust-remover for Metal treatment;
6. Grinding agent, such as Marble polishing;
7. Waste water treatment, removing calcium from water.