... .6% min mainly used in producing bacteriophage, borneol and refining rare metals oxalic acid 99.6%SpecificationTOTAL ACIDITY 99.6 % ASH ... medication, such as Oxytetracycline, Chloramphenicol, etc. 2)Precipitating agent in Rare-earth mineral processing; 3)Bleaching agent in the textile activities, wood ...