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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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"STARMAG" is Konoshima's light-burned Magnesium oxide produced from natural raw materials, seawater and limestone.
It is the highest quality products with fine particles by our particle control technology.
We can offer various grades for diverse applications.
high-reactive grade mainly used for vulcanizing agent for chloroprene rubber.
middle/low-reactive grades mainly used for compounding agent or chemical raw material.
High-reactive grade with fine particles.
It has higher purity and whiteness than other grades
Granular grade with easy handling and good workability.
high-reactive grade with surface coating to improve dispersibility in polymer and less adherent on mixing roller.
| High-reactive | Middle/low-reactive | fine particle | Granular | Surface-coated | ||
|---|---|---|---|---|---|---|
| #150 | M | P | PSF-150 | G | CX-150 | |
| Screen residue (75μm)(%) | 0.01 | 0.01 | 0.03 | 0.01 | － | 0.01 |
| Loss on ignition(%) | 7.0 | 3.0 | 1.5 | 8.0 | 1.5 | 13.5 |
| Assay as MgO (Ignited basis)(%) | 97.5 | 97.7 | 98.0 | 99.0 | 98.0 | 97.5 |
| Soluble matter in water(%) | 1.2 | 1.2 | 1.2 | 0.3 | － | － |
| Insoluble matter in HCl(%) | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| Calcium oxide(%) | 0.7 | 0.7 | 0.7 | 0.3 | 0.7 | 0.7 |
| Iron(%) | 0.02 | 0.02 | 0.02 | 0.005 | 0.02 | 0.02 |
| Specific surface area(m2/g) | 145 | 50 | 10 | 145 | 10 | 120 |
| Average particle size(μm) | 3.5 | 3.5 | 3.5 | 0.6 | － | 3.5 |