Products to these specifications are manufactured form very high quality chemical-porcelain clay materials, which has quite excellent stability, high mechanical strength and resistance to thermal shock. This makes them all ideal choice for support of all types of catalyst.CBS-17Chemical composition of Ceramic Support Media Balls Al2O3+SiO2 Al2O3Fe2O3MgOK2O+Na2O +CaOOther> 93%15-19%<1%<0.5%<4%<1%Leach able Fe2O3 is less than 0.1% CBS-23Chemical composition of Ceramic Support Media Balls Al2O3+SiO2 Al2O3SiO2Fe2O3MgOK2O+Na2O +CaOOther> 92%20-26%68-73%<1%<2.5%<4%<0.5%Leach able Fe2O3 is less than 0.1% Physical propertiesof Ceramic Support Media Balls Item ValueWater absorption<0.5%Bulk density (MT/m3)1.35-1.4Specific gravity2.3-2.4Free volume40-44%Operation temp.(max)982Mohs hardness>6.5 scaleAcid resistance>99.6%Alkali resistance>85%Spalling resistance427Size Crush strengthKg/particleKN/particle1/8(3mm)>35>0.351/4(6mm)>60>0.603/8(10mm)>85>0.851/2(13mm)>185>1.853/4(19mm)>487>4.871(25mm)>850>8.51.5(38mm)>1200>122(50mm)>5600>56