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R&D of ceramics
- Possibility of technology
- Challenge for new ceramics
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Pharmaceutical products
- Magnesium oxide
- Magnesium hydroxide
- Magnesium carbonate
Food additive products
- Magnesium oxide
- Magnesium hydroxide
- Magnesium carbonate
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Generally Magnesite is a natural ore of Magnesium carbonate(MgCO3). Our "MAGTHERMO" is Magnesite made from seawater by our special synthetic method.
It is suitable as a thermal conductive filler for plastics.
・High thermal conductivity, small specific gravity.
・Very soft particle with 3.5 in Mohs hardness.
・Unhydrous Magnesium carbonate and applicable to highly heat-resistant engineering plastics because of high heat stability up to 500℃.
・Excellent dispersibility due to fine, uniform particles with small specific surface area.
| Composition formula | MgCO3 |
|---|---|
| Appearance | White powder |
| Crystal system | Trigonal |
| Specific gravity | 3.04 |
| Mohs hardness | 3.5 |
| Refractive index | 1.72 |
| Decomposition temperature | approx. 500℃ |
| Grade | MS-S | MS-L | MS-PS |
|---|---|---|---|
| Average particle size(μm) | 1.2 | 8.0 | 21.0 |
| Specific surface area (BET)(m2/g) | 5.5 | 1.2 | 0.7 |
| Bulk density(g/ml) | 0.86 | 0.85 | 1.16 |
| MgO(％) | 47.5 | 48.0 | 47.8 |
| CaO(％) | 0.36 | 0.27 | 0.09 |
| Al2O3(％) | 0.019 | 0.006 | 0.002 |
| Fe2O3(％) | 0.02 | 0.01 | 0.001 |
| SiO2(％) | 0.14 | 0.04 | 0.01 |
| MgCO3 | Al2O3 | |
| Electrical resitivity(Ω・cm) | 3.0×1016 | 7.3×1015 |
| Relative permattivity | 4.8 | 5.7 |
Ball-shape improves fillability and Spindle shape improves physical properties.
