white carbon

White carbon, Silicon Dioxide Una.16 Chemistry character: precipitation analysis Silicon Dioxide General character: high surface area and absorbing oil value, can partly substitute white carbon black with coatings,inks making,regarded as dispersant agent in powder system and as flow controlling agent in liquid system,and good thickening and antisettling action. Appication:coatings,inks etc. Item value Appearance very fine powder Losson drying 105oC 2h % 4.0-8.0 Ignition loss 1000oC % ≤7.0 PH value 6.5-7.5 BET speciflc surface area m2/g 210-250 DBP absorption value cm3/g 2.3-3.4SiO2% ≥98.0%Na2SiO4% ≤0.5Fe(mg/kg) ≤160 Average particle μm 3-5 Packing: PP/woven bag, EVA/woven bag, kraft paper bag