Magnesium oxide (MgO), also known as magnesia or periclase, is an inorganic compound that typically appears as a white, odorless powder. It is valued for its high melting point, chemical stability, and excellent insulating properties.
MgO is used across a wide range of industries. In advanced materials and optics, it is used in laser filter glass, optical ceramics, and solid oxide fuel cells (SOFCs). In electronics, MgO serves as an insulating and protective material, and it is also an important raw material for synthesizing other ceramic compounds.
Beyond technical applications, magnesium oxide is used in pharmaceuticals, food additives, and as a color stabilizer in various formulations.
Highpurity MgO is especially important in crystal growth. It is used to grow single crystals, which are then processed into substrates for thinfilm deposition. These MgO substrates are widely used in:
- Superconducting thin films
- Magnetic thin films
- Optical coatings
- Highfrequency and microwave devices
The combination of thermal stability, lattice compatibility, and chemical purity makes MgO a key material for advanced thinfilm technologies.
General Properties
| Properties | Value |
| Chemical formula | MgO |
| CAS # | 1309-48-4 |
| EC / EINECS # | 125-171-9 |
| Molar mass | 40.304 g/mol |
| Appearance | White powder |
| Melting point | 2,852 °C (5,166 °F; 3,125 K) |
| Boiling point | 3,600 °C (6,510 °F; 3,870 K) |
| Density | 3.6 g/cm |
| Solubility in water | No |
| Solubility | Soluble in acid, and ammonia; insoluble in alcohol |
Product Availability
We provide high-purity Magnesium Oxide (MgO) tailored for semiconductor and industrial requirements.
| Purity | 99.99% – 99.999% (4N – 5N) |
| Forms | Powder |
| Particle Sizes | From -50 mesh to – 200 mesh |
| Nanoparticle Sizes | From 30 nm to 80nm |
| Package | At request |
If you are in need of any high purity Magnesium Oxide (MgO), please contact our sales team for details at sales@american-gmg.com.