Chemical Product Library / Reference
Magnesium oxide
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Magnesium oxide |
|---|---|
| English synonyms | Magnesia;Calcined magnesia |
| Chinese name | 氧化镁 |
| Chinese synonyms | 苦土;灯粉;煅烧镁氧;镁氧;一氧化镁 |
| Chemical category | Inorganic Salts |
| CAS No. | 1309-48-4 |
| EINECS No. | 215-171-9 |
| Molecular formula | MgO |
| Molecular weight | 40.3 |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
MgO content ≥95.0% (grade dependent); loss on ignition ≤3.0%; water-soluble matter ≤0.5%; residue on 325 mesh ≤0.1%
Performance characteristics
White powder, sparingly soluble in water, soluble in acids, high refractoriness
Application scenarios
Refractory materials, magnesium cement, rubber filler, pharmaceuticals (antacid), feed additive, catalyst support