Chemical specifications Excellent Extra Normal Category Concentration 62.51 62.7 62.16 silica oxide 30.34 30.94 31.54 Magnesium oxide 0.38 0.36 0.32 Aluminum oxide 0.58 0.54 0.43 Calcium oxide 0.31 0.19 0.15 Ferric oxide 0.06 0.04 0.10 0.04 0.08 0.03 Sodium oxide 5.02 4.81 4.81 Fire Losses 0.057 0.23 0.44 0.180 0.54 0.24 Fifth phosphorus oxide. Business Specific Details: Packing: 25Kgs/ 50Kgs/ 100Kgs ò Shipment: By container ò Port of Loading: West Coast of Egypt ò Available Mesh Size: 200 / 300 / 400 / 500 / 700 up to 2 micron.