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Basic Physical Properties of Magnesium Oxide
Magnesium Oxide
- Chemical formula
- MgO
- Molecular weight
- 40.31
- Density
- 3580kg/m3
The oxide with the highest heat resistance
Melting point：2826°C
Magnesium oxide is used as a refractory material due to its excellent heat resistance.
The oxide with the best thermal conductivity
Thermal conductivity：53W・m-1・K-1
Magnesium oxide is used as a heat dissipation material due to its very high thermal conductivity.
The oxide with high insulation properties
Electrical resistance rate：1015Ω・m
Magnesium oxide is used as an insulating material due to its excellent electrical insulation properties.
List of Properties of Magnesium Oxide
| Chemical name | Magnesium Oxide | Remarks | |
|---|---|---|---|
| Chemical formula | MgO | ||
| CAS number | 1309-48-4 | ||
| Crystal structure | Cubic (NaCl) | ||
| Molecular weight | 40.31 | ||
| Lattice constant | m | 4.211×10-10 | |
| Density | kg･m-3 | 3580 | |
| Specific heat | J･kg-1･K-1 | 922 | R.T. |
| Melting point | K | 3099 | |
| Boiling point | K | 3873 | |
| Relative Permittivity | 9.5 | R.T., 1.0 MHz | |
| Dielectric dissipation factor | 0.0001 less than | R.T., 1.0 MHz | |
| Electrical resistance rate | Ω･m | 1015 | 298K |
| Coefficient of thermal expansion | K-1 | 13.5×10-6 | |
| Thermal conductivity | W･m-1･K-1 | 53 | R.T. |
PRODUCT LIST
Magnesium Oxide
- TATEHOMAG®（Light Burned Magnesium Oxide）
- TATEHOMAG®（Magnesium Oxide for Electromagnetic Steel Sheets）
- TATEHOMAG® #700（Light Burned Magnesium Oxide）
- DISPERMAG®（Highly Dispersible Magnesium Oxide）
- PUREMAG® FNM-G（High Purity Magnesium Oxide）
- DENMAG®（Electro-Fused Magnesium Oxide）
- DENMAG®（Magnesium Oxide for Electrical Heater）
- DENMAG® SSP（Electro-Fused Magnesium Oxide）
- MIRACRYSTAR®（Single Crystal Magnesium Oxide Substrates）
- TATECERA® EMG（Magnesium Oxide Insulator）
- TATECERA® SMG（Magnesium Oxide Ceramics（Setter））
- TATECERA® CMG（Magnesium Oxide Ceramics（Crucible・Sagger））
Magnesium Hydroxide
Magnesium Aluminate
Calcium Oxide
Zirconium Dioxide
Aluminum Oxide
Calcium Sulfite
Silicon Carbide
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