Table 1 Thermodynamic data used to produce the curves in Figure 1
| Reaction | Log K |
|---|---|
| Al3+ + H2O = AlOH2+ + H+ | -4.950 |
| Al3+ + 2 H2O = Al(OH)2+ + 2 H+ | -10.590 |
| Al3+ + 3 H2O = Al(OH)3 + 3 H+ | -16.420 |
| Al3+ + 4 H2O = Al(OH)4- + 4 H+ | -22.870 |
| Al(OH)3(am): Al(OH)3(s) + 3 H+ = Al3+ + 3 H2O | 10.578 |
| Gibbsite: Al(OH)3(s) + 3 H+ = Al3+ + 3 H2O | 7.738 |
| Kaolinite: Al2Si2O5(OH)4 + 6H+ = 2 Al3+ + 2 H4SiO4 + H2O | 6.472 |
| Sapphire (α-Corundum): Al2O3 + 6 H+ = 2 Al3+ + 3 H2O | 18.301 |