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  • Electro-Fused Magnesium Oxide
Electro-Fused Magnesium OxideElectro-Fused Magnesium Oxide

Electro-Fused Magnesium Oxide

Physical Properties

Electromelted Magnesium Oxide is a white, tasteless, odorless, and slightly soluble powder in water. Its chemical formula is MgO, with a relative molecular weight of 40.3. Its melting point is 2852 ℃, with a large specific surface area, good thermal stability, and less hygroscopic. Its hardness is very high, usually reaching 5-6 on the Mohs hardness. It has good electrical insulation performance and is suitable for manufacturing electrical insulation materials. Electromelted Magnesium Oxide has high density, high thermal stability, and good electrical insulation performance, suitable for high temperature, high pressure, and special environments in various industrial applications.


Electro-fused magnesium oxide has important uses in many fields due to its high purity and excellent physicochemical properties, including:

1. Electric fused magnesium oxide tubular heating elements are widely used in household appliances (rice cookers, irons, electric furnaces, etc.) and industrial equipment (forming machines, heat sealing machines, etc.) and other applications.
2. Electromelted magnesium oxide is used as an insulation filler for tubular heating elements. To produce tubular heating elements, coiled wires are inserted into metal tubes and fused magnesium oxide powder is filled into the internal gaps.
3. The fused magnesium oxide powder acts as insulation for the current flowing through the wire and effectively conducts thermal energy only to the tube。

4. Electrical grade magnesium oxide powder is made from high-quality 97% or 98% fused magnesium oxide as raw material, and adopts advanced modification technology in China, making magnesium oxide powder a moisture-proof and electrically insulating electrical grade magnesium oxide. Good insulation and rapid heat transfer performance make it an ideal insulation filling material for electric heating elements.