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 |