Compounds
CaO
SiO
2
Al
2
O
3
Fe
2
O
3
SO
3
K
2
O
MgO
Na
2
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.