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. 2022 Aug 4;7(32):28129–28137. doi: 10.1021/acsomega.2c02247

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