Carbon white Our manufactory produce silicon dioxide(that is carbon white) Silicon dioxide is white powder widely used in such fields as common rubber, plastics, special type rubber, painting, printing ink, mucilage glue, defoaming agent, toothpaste, papermaking, agricultural chemicals, food feedstuff, medicament, et Sio2% 98 Appearance white powder Whiteness % 93 Ph (5%aq.Suspension) 6.5-8.5 Pass320 mesh screen% 98 Loss on drying (105µ)% 10 Loss on ingnition(900µ) 8.3 Drink value ml/20g 18-20 Na2so4 content% 0.4 Nacl content% 0.1 Suldie content naught Heavy metals content mg/kg 20 As content mg/kg 2 Bacilli cfu/g 200 10kg/pack