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| Chemical Component | Typical Content | Description |
|---|---|---|
| SiO2 | 58% - 63% | Main silicate component |
| MgO | 28% - 32% | Main magnesium component |
| Al2O3 | 0.5% - 2.0% | Controlled impurity |
| Fe2O3 | ≤ 1.0% | Affects whiteness and color |
| CaO | ≤ 2.0% | Minor component |
| K2O + Na2O | ≤ 1.0% | Minor alkali components |
| Loss on Ignition | 4% - 7% | Related to hydroxyl and mineral structure |
The main silicate component is SiO2, accounting for a typical content range of 58% to 63%.
MgO is the main magnesium component, representing typically 28% to 32% of the overall chemical composition.
Fe2O3 is controlled at ≤ 1.0% because it directly affects the whiteness and final color grade of the material.
The Loss on Ignition ranges from 4% to 7%, which is related to the hydroxyl groups and mineral structural composition.
Al2O3 is maintained as a controlled impurity between 0.5% and 2.0%, while CaO is kept as a minor component at ≤ 2.0%.
The combined alkali content of K2O and Na2O is strictly maintained as minor components at ≤ 1.0%.
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