Carbon Black N220,N330,N550,N660 for Rubber Carbon Black CAS No.: 1333-86-4 H.S code: 2803000000 Apperance: Black Powder Packing: 25kg or 20 kg per PP bag or Paper bag 25 MT/ 20'Container Delivery: 3-7 days Carbon black is the predominant reinforcing filler used in rubber compounds, and it is required to impart the necessary durability and strength to these products for longer lifetime and greatly improved performance. Carbon Black distributes and absorbs stress applied to a rubber component and improves its tensile strength, tear strength and abrasion resistance. Carbon Black can also impart electrical conductivity / resistivity to a rubber compound for dissipating static charge in dynamic applications such as automotive belts and Green Tires. The Main types we have for Rubber additive is  N220, N330, N550,N660 Specification Items N220 N330 N550 N660 Indine absorption  g/kg 121±5 82±5 43±4 36±4 DBP Absorption 114±5 102±5 121±5 90±5 CTAB Surface Area, 106-116 79-87 38-46 31-39 Nireogen Surface Area, 114-124 78-88 38-46 30-40 Tint Strength 110-120 98-108 Heating Loss,%,max 3 2.5 2.5 1.5 Ash,%,max 0.5 0.5 0.5 0.5 Tensile strength Msp,min,% -0.8 -1.5 -3.5 -3.5 Exrension,%,min 10 -10 -10 10 Applications 1. applies to natural rubber and synthesi synthetical rubber 2. plastics 3. paints ,inks 4. masterbatch