Specification: Carbon (C): 10.0% max; Moisture: 2.9% max; Loss on ignition: 13.4% max; Iron oxide (FeO3): 0.4%; Calcium oxide (CaO): 0.6%; Sodium oxide (Na2O): 0.2%; Potassium oxide (K2O): 3.5%; Sulfur trioxide (SO3): 0.8%; Silicon dioxide (SiO2): 70.2%; Aluminum oxide (Al2O3): 0.1%; Magnesium oxide (MgO): 0.4%; Appearance density after compaction: 0.24%.
