| Product name | Magnesium Oxide | |
| Shelf Life | 2 Years | |
| Test Item | Specified Value | Test Result |
| Appearance | Fine, White powder | Positive |
| Identification | Reaction of magnesium | |
| Content (%) calculated as MgO | 96.0 – 100.5 | 98.24 |
| Appearance of Solution | ≤ B3 | Positive |
| Solubility | Water insoluble, dissolve in dilute acid with slight effervesce | Positive |
| Soluble Substances (%) | ≤ 2.0 | 1.8 |
| Substances insoluble in acid (%) | ≤ 0.1 | 0.1 |
| Calcium (%) | ≤ 1.1 | 0.1 |
| Iron (%) | ≤ 0.05 | ≤ 0.05 |
| Heavy Metals (ppm) | ≤ 20 | 15 |
| Particle Size D50 (μm) | Approx. 10μm | |
| Approx. 10μm | ≤ 0.35 | 0.31 |