Table 7.
Chemical properties.
| Sample | 25SS | 50SS | 25BFS | 50BFS |
| Loss on Ignition (%) | 1.99 | 1.19 | 1.72 | 1.09 |
| Insoluble Residue (%) | 0.29 | 0.23 | 0.28 | 0.24 |
| Sulfate Ion (%) | 2.1 | 1.4 | 2.3 | 1.7 |
| Chloride Ion (%) | <0.1 | <0.1 | <0.1 | <0.1 |
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