Table 2. Elemental Composition, pH, and BET Surface Area of Various Fly Ash Samples.
| entry | parameters | FS-1 | FP-1 | FC-1 |
|---|---|---|---|---|
| 1 | SiO2% | 58.9 | 60.3 | 18.8 |
| 2 | Al2O3% | 34.5 | 30.7 | 11.0 |
| 3 | Fe2O3% | 4.5 | 4.9 | 2.0 |
| 4 | CaO % | 0.2 | 0.5 | 31.0 |
| 5 | MgO % | 0.5 | 1.5 | 1.4 |
| 6 | Sulfate % | 0.10 | 0.12 | 24.1 |
| 7 | pH of 5% solution | 6.8 | 6.9 | 10.1 |
| 8 | BET surface area (m2/g) | 12.91 | 4.29 | 1.67 |