... . It has a large number of microspore, non-crystalline SiO2. In addition, it also has ... large number of SiO2: only the non-crystal SiO2 has the activity, we can ... keep 80% non-crystal SiO2. PHYSICAL PROPERTIESCHEMICAL PROPERTIESSpecification Grade ... juice, wine, beverage syrupy, etc. 3. Pharmaceutical: antibiotic, vitamin, refined traditional Chinese medicine, filling for dentistry, ...