Magnesium Oxide Insulator

• Excellent electrical insulation

• High-temperature resistance

• Outstanding thermal stability

• Good heat-transfer properties

• High melting point

• Suitable for mineral-insulated cables and heating elements

• Available in high-purity and electrical-grade specifications

• Custom sourcing based on application requirements

• COA and material documentation available as applicable

Property	Typical Information
Chemical Name	Magnesium Oxide
Chemical Formula	MgO
CAS Number	1309-48-4
Molecular Weight	40.30 g/mol
Appearance	White
Purity	95%–99.99%+
Crystal Structure	Cubic
Density	3.58 g/cm³
Melting Point	2,852°C
Electrical Properties	High electrical resistivity
Thermal Stability	Excellent
Moisture Sensitivity	Hygroscopic
Applications	Electrical insulation and high-temperature systems

• Electrical-Grade Magnesium Oxide

• High-Purity Magnesium Oxide

• Mineral-Insulated Cable-Grade MgO

• Heating Element Insulation-Grade MgO

• High-Temperature Magnesium Oxide

• High-Density Magnesium Oxide

• Industrial-Grade Magnesium Oxide

• Custom-Specification MgO Insulating Material

1. What is a magnesium oxide insulator?

A magnesium oxide insulator is an insulating material made from MgO that provides electrical resistance and thermal stability in high-temperature environments.

2. What is magnesium oxide insulation used for?

It is used in heating elements, mineral-insulated cables, thermocouples, industrial furnaces, and high-temperature electrical equipment.

3. What is the melting point of magnesium oxide?

Magnesium oxide has a melting point of approximately 2,852°C, making it suitable for many high-temperature applications.

4. Is magnesium oxide electrically insulating?

Yes. Properly processed MgO provides high electrical resistivity and is commonly used in electrical insulation systems.

5. What purity levels are available?

Magnesium oxide may be available in purity levels ranging from industrial-grade material to 99.9% and higher-purity specifications, depending on the application and supplier.

6. Can REG Metals supply custom magnesium oxide insulators?

REG Metals can source magnesium oxide insulating materials according to customer requirements, subject to availability. Purity, material form, dimensions, and application requirements should be specified when requesting a quotation.