General information: Physical & chemical properties - cenosphere cs-300 Size 1-500 microns Ph in water 6.0 - 8.0 Bulk density 400-450 kgs/cbm Compressive strength 1500 - 3000 psi Melting point > 1200 degrees celsius Shape spherical Moisture 0.5% max Specific gravity 0.75-0.85 g/cc Sinkers 5% max Sio2 55-65% Al2o3 30-36% Cao 0.1-0.5% K2o 1.2-3.2% Fe2o3 1.0-3.0% Tio2 0.8-1.3% Mgo 1.0-2.5% Na2o 0.2-0.6% 25kg
