Ion | Adsorption capacity, mmol/g | Quantitative extraction, mmol/g | Color of complex |
W(VI) | 5.70 | ˂0.30 | white |
Mo(VI) | 0.76 | ˂0.30 | pale green |
Cr(VI) | 0.44 | ˂0.01 | grey-yellow |
V(V) | 0.70 | ˂0.10 | yellow |
Co(II) | 0.12 | - | violet |
Zn((II) | 0.18 | ˂0.02 | white |
Cu(II) | 0.22 | ˂0.12 | light blue |
Pb(II) | 0.02 | - | white |
Cd(II) | 0.11 | - | white |