History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.s2.t4.141

v1.c13.s2.t4.141

| Material | Analysis | Calculation | Metal Fe(kg) | Theoretical Composition | Actual Composition (basis 21 kg) | Gases (kg) | Remarks |
| Ore-24 kg | | | | | | | |
| Fe(Fe2O3) | 63.4 | 24x0.634x0.302 | 5.5 | 9.7 | 9.66 | 2.357 | Metal Composition |
| SiO2 | 2.44 | 24x0.0244-0.021 | 0.01 | 0.565 | 5.68 | 1.387 | C-0.4% |
| P2O5 | 0.01 | - | 0.0004 | - | - | 0.114 | Si-0.2% |
| Al2O3 | 1.66 | - | - | 0.446 | 1.41 | 0.026 | Fe-rest |
| CaO+MgO | 0.5 | - | - | 0.12 | 1.29 | - | Slag |
| MnO | 0.9 | - | - | 0.20 | 0.21 | 0.888 | Composition |
| Lol | 3.7 | - | - | - | - | - | SiO2-27.08% |
| | | | | | | | Al2O3-6.72% |
| Total | | | 5.5104 | 11.031 | - | - | Fe-46% |
| | | | | | | | MnO-1.026% |
| Oxygen in iron as FeO | | | 0.022 | 2.77 | - | *5.54 kg of | MgO-1.16% |
| Charcoal - 30 kg | | | | | | | SO2-0.075% |
| F.C | 75.8 | | | 0.96 | - | iron will be | |
| Ash | 3.2 | | | - | - | associated with | |
| V.M. | 21.0 | | | - | - | 21 kg slag. | |
| | | | | | | Thoretical slag | |
| Total-54 kg | | | 5.5324 | 14.761 | 22.718 | wt.=14.761 kg | |
| | | | | theoretical | 6.3 | hence SiO2+Al2O3 | |
| | | | | slag wt | | | |
| | | | | | | | Theoretical | |
| | | | | | 54 kg* | | charcoal for | |
| | | | | | | | reduction=16 kg |