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Classification: Magnesium Oxide
CAS No.: 1309-48-4
Other Names: Caustic Calcined Magnesite
EINECS No.: 215- 171-9
Place of Origin: China (Mainland)
Grade Standard: Industrial Grade
Purity: 60%-95%min
Appearance: white powder
Application: Fertifilizer or Technical grade
Brand Name: EG
Model Number:
MgO: Magnesium Oxide Dense



Magnesium Oxide
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Magnesium Oxide


MgO is a high-temperature materials, and water can prevent the formation and spread of flame

Grade MgO (min. ) SiO2(max. ) CaO (max. ) Fe2O3(max. ) Al2O3(max. ) L. O.I. mesh
A 95% 1.20% 1.50% 0.50% 0.10% 1.70% 0-325
B 94% 1.50% 1.80% 0.58% 0.12% 2.00%
C 92% 1.80% 1.90% 0.60% 0.20% 3.50%
D 90% 2.50% 2.50% 0.75% 0.25% 4.00%
E 85% 3.70% 3.50% 1.00% 0.47% 6.00%


It is used as one of the raw materials for making cement in dry process plants; specifically Portland cement. If too much is added, the cement may be expansive.

It is used as an insulator in .

It is used as a principal ingredient in construction materials used for fireproofing.

It is used as an insulator in devices that exhibit the effect.

An industrial use of magnesium oxide is in leather processing, as a basifying agent on chrome tanning process


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