White Carbon Black( chemical precipitation) Specifications: 1) SiO2 (silicon dioxide): 90% min. 2) residue on sieve: 0.5% max. 3) heating loss: 4.0 - 8.0% 4) pH value: 6.8 - 7.5 5) Ignition loss: 7.0% max. 6) Copper( mg/kg): 30 max. 7) manganese(mg/kg): 50 max. 8) iron : 500mg/kg max 9) DBP absorption: 2.00 - 3.50cm3/g Usage: 1) Mechanical rubber goods. Light colored and translucent soles, micro cellular plates and TPR 2) Silicon Rubber 3) Feedstuff additive, pesticide, washing powder, ceramics 4) Adhesive 5) PlasticsPacking: 20kg/PP woven bag with plastic liner