Magnesium oxide powder

Magnesium oxide MgO powder.

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

SDS - Magnesia (87.93k)

Safety Data Sheet - Magnesia Powder


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Magnesium Oxide Powder Data Sheet


Magnesium oxide powder

Magnesium oxide powder

Magnesium oxide powder (MgO) is a material that is a good electrical insulator and thermal conductor. Powders are distinguished by their purity, the grain size and distribution. They can be processed by dry pressing or by injection molding.
Full description