Magnesium-alumina-spinel, CerMag50

A high quality shaft-kiln produced sub-stoichiometric magnesia-alumina spinel, ensuring total logistical and quality control. Applications in the production of steel, cement and technical ceramics.

Produced from high temperature sintering of Bayer process calcined alumina together with especially selected magnesite.

Major phase identified by X-Ray Diffraction as magnesia-alumina spinel. CerMag 50 ensures complete control of chemistry and physical properties promoting complete control of the final ceramic system. Approximately 30% free Periclase.

Standard Sizes are:

8-5 mm
5-3 mm
3-1 mm
1 - 0 mm
-0.15mm
-0.08mm
-45µ

Chemical Analysis
Typical

Oxide	%
SiO₂	0.2
Al₂O₃	50.0
Fe₂O₃	0.15
CaO	0.35
MgO	49.0

Free metallic iron levels are below 0.02% (lower for many size distributions)

Physical Properties

Specific Gravity	3.30 g.cm^-3
Apparent Porosity	4.0%
Water Absorption	1.5%
Colour light brown/off white

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