Product Name:White carbon black   Packaging & Delivery Packaging Detail: Packing: 15kg/bag, 20kg/bag. Double layers of packing, the inner with plastics film bag and the outer with plastics-applied weaving bag. Delivery Detail Prompt Shipment Specifications:  Item Value Appearance White granular Loss on drying 105 2h % 4.0-8.0 Ignition loss   1000  % 7.0 PH value 5.0-8.0 BET specific surface area  m2/g 161-190 DBP absorption value  cm3/g 2.00-3.50 SiO2 % 90 Na2SO4 % 1.50