Magnesium oxide is an inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.
Irritant
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Magnesium oxide is an inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.
| Physical Description | Magnesium oxide appears as a white solid, often found as a powder. When fine particles of magnesium oxide are dispersed in air, whether directly or when generated by the burning or cutting of magne… |
| Color/Form | White, very fine powder |
| Odor | Odorless |
| Melting Point | 5072 °F (NIOSH, 2024) |
| Boiling Point | 6512 °F at 760 mmHg (NIOSH, 2024) |
| Density | 3.58 (NIOSH, 2024) - Denser than water; will sink |
| Solubility | 0.009 % at 86 °F (NIOSH, 2024) |
| Vapor Pressure | 0 mmHg (approx) (NIOSH, 2024) |
| Refractive Index | Index of refraction: 1.7355 at 589 nm; 1.7283 at 750 nm |
| IUPAC Name | oxomagnesium |
| Molecular Formula | MgO |
| Molecular Weight | 40.305 g/mol |
| CAS | 1309-48-4 |
| SMILES | O=[Mg] |
| InChIKey | CPLXHLVBOLITMK-UHFFFAOYSA-N |
| Catalog No | KC.1310036 |
| Pack sizes | 500GM |
⚠️ For information only; not a substitute for the official SDS.