Component

Bentonite

Untreated

Treated with different concentrations of HCl

0.05 M

0.15 M

0.25 M

0.4 M

0.6 M

SBET (m2/g1)

508.27

580.32

600.57

715.64

837.11

544.37

Mass percent of (Al2O3 + Fe2O3 + MgO) (%)

21.76

19.80

17.54

14.92

12.43

9.13

Bulk density (kg/m3)

1026.9

997.7

976.3

950.1

896.5

927.6

CEC (méq/g)

74.32

70.56

62.33

46.75

40.15

70.56