Compounds CaO SiO2 Al2O3 Fe2O3 SO3 K2O MgO Na2 LI
Raw clay 5.91 45.46 15.61 9.64 3.86 1.79 3.26 0.28 11.56
Activated clay 0.95 58.63 20.37 9.93 0.6 1.94 0.4 0.03 8.05
Table 3: Chemical analysis (wt %) and loss in ignition of raw and activated clay.