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Magnesium Oxide

Formula: MgO
Alternate Names: Magnesia, Periclase

OxideAnalysisFormula
MgO100.00%1.000
Oxide Weight40.30
Formula Weight40.30
If this formula is not unified correctly please contact us.
HMOH - Hardness (Moh) 3.5
GSPT - Frit Softening Point 2800C

Magnesium oxide or Periclase is a synthetic pure MgO mineral produced in electric arc furnaces by sintering Magnesite powder. Magnesium oxide is very refractory, and is used in the manufacture of bricks and crucibles for the metal processing industries, thermocouple insulation, etc.

Its low comparative cost, thermal conductivity and electrical resistivity properties at elevated temperatures make this material valuable for heating unit insulation. Crucibles and shapes, thermocouple insulation, infrared glass are other applications.

Slightly soluble in water, soluble in acids.


Magnesium carbonate vs. oxide: One big difference

Magnesium carbonate vs. oxide: One big difference

Here is a screenshot of side-by-side recipes in my account at insight-live.com. It takes 120 mag carb to source the same amount of MgO as 50 mag ox. I just made the two recipes, went into calculation mode and kept bumping up the magcarb by 5 until the chemistry was the same. Note the LOI of the magcarb version is 40. This one would certainly crawl very badly.

Out Bound Links

In Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Magnesium Oxide" descrip="" searchkey="Magnesia, Periclase" loi="0.00" casnumber="82375-77-7"> <oxides> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="100.000" tolerance=""/> </oxides> </material>


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