| Slag No. | Chemical composition, Wt% | Physical properties | |||||
| CaF2 | CaO | Al2O3 | TiO2 | Density gm/cm3 | Viscosity poise | Interfacial tension mN/m | |
| ESR1 | 70 | 15 | 15 | -- | 2.55 | 0.25 | 1375 |
| ESR2 | 52.5 | -- | 22.5 | 25 | 2.75 | 0.8 | 1050 |
| ESR3 | 70 | -- | -- | 30 | 2.8 | 3.0 | 700 |