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| S.No. | Parameter | |
| 1. | Loss on Ignition | 6% |
| 2. | Loss on Drying | 0.05% |
| 3. | Acid soluble substances ( As So4 ) | 2.5% |
| 4. | Extractable flouride | 20% |
| 5. | pH (at 10%) | 8.5% |
| 6. | Soluble Salts | 0.2% |
| 7. | Absorption in Oil | 31.5% |
| 8. | Asbestos fibres | Nil |
| 9. | Arsenic | Nil |
| 10. | SiO4 | 61.5 |
| 11. | MgO | 29.5 |
| 12. | Fe2O3 | 0.15 |
| 13. | CaO | 0.375 |
| 14. | Al2O3 | 1.55% |