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Overview of magnesium oxide powder
Magnesium oxide powder is both an excellent electrical insulator and a very good thermal conductor. It properties are appreciated in the thermal industry as a component of thermocouples and heating systems. The powder is synthesised by calcining magnesium carbonate or magnesium hydroxide.
Available in 94% to 99.6% purity, these powders can be applied by dry pressing or injection moulding. Our powder grades vary depending on:
- Purity
- Grain size and distribution
Applications for magnesium oxide powder
Due to its high thermal conductivity, excellent electrical insulation and high melting point, MgO powder is suitable for high temperature applications.
- Manufacture of components for temperature measurement
- Manufacture of thermocouple cables
- Manufacture of heating and fire-resistant cables
- Manufacture of heat cartridges
Magnesium oxide can also take the form of sintered ceramics, particularly in crucibles, which are highly prized for their technical properties.
Technical data for magnesium oxide powder
|
Magnesium oxide MgO |
Grade 94% |
Grade 99% |
Grade 99,6% |
||
|
Product N° |
171-0010 |
171-0020 |
171-0030 |
171-0040 |
171-0050 |
|
Grain Size (μm) |
45-425 |
45-425 |
75-180 |
63-90 |
75-180 |
|
Standard purity |
|||||
|
MgO |
> 94.0% |
> 99% |
> 99% |
> 99% |
> 99.6% |
|
Al2O3 |
< 1.2% |
< 0.15% |
< 0.15% |
< 0.15% |
< 0.10% |
|
Fe2O3 |
< 0.22% |
< 0.10% |
< 0.10% |
< 0.10% |
< 0.08% |
|
SiO2 |
< 4.0% |
< 0.25% |
< 0.25% |
< 0.25% |
< 0.08% |
|
CaO |
< 1.6% |
< 0.5% |
< 0.50% |
< 0.60% |
< 0.15% |
|
B2O3 |
< 0.01% |
< 0.03% |
< 0.03% |
< 0.03% |
< 0.02% |
|
Grain-Size-Distribution (µm) |
|||||
|
< 45 |
7 % |
0 |
0 |
< 20% |
0 |
|
>45 |
0 |
0 |
<15% |
0 |
<15% |
|
> 106 |
0 |
0 |
<10% |
< 5% |
<10% |
|
> 250 |
26 - 38 % |
0 |
0 |
0 |
0 |
|
> 355 |
< 7 % |
<5% |
0 |
0 |
0 |
|
> 425 |
< 0.1% |
0 |
0 |
0 |
0 |
Minimum order of 1kg
