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Contact Supplier1. Chemical Composition (Typical % by weight)
ParameterTypical Range for Glass Grade
| SiO₂ | 99.0 – 99.8 % (minimum 99% preferred for high-quality glass) |
| Fe₂O₃ | ≤ 0.03 – 0.05 % (low iron is critical for clear/solar glass) |
| Al₂O₃ | ≤ 0.2 – 0.4 % |
| TiO₂ | ≤ 0.03 % |
| CaO | ≤ 0.05 – 0.1 % |
| MgO | ≤ 0.05 – 0.1 % |
| Na₂O + K₂O | ≤ 0.05 – 0.1 % |
| Loss on Ignition (LOI) | ≤ 0.2 % |
PropertyTypical Requirement
| Grain Size | 0.1 – 0.5 mm (depends on furnace and product) |
| Shape | Sub-angular to rounded (better flow & packing) |
| Moisture Content | ≤ 0.5 % |
| Specific Gravity | 2.65 – 2.67 |
| Bulk Density | 1.55 – 1.65 g/cm³ |
| Refractive Index | ~1.55 |
| Hardness (Mohs) | 7 |
Also, we can provide products as per customer requirement on the basis of use.



