Home Magnesium oxide (magnesia, periclase)

Crystal habit of periclase (magnesium oxide)
Formula MgO
Molecular mass 40.32 g/mol
Density  3.58 g/cm3
Hardness 6
Melting point 2800°C
CAS-No. 1309-48-4

Magnesium oxide is the starting material for the production of sinter magnesia for refractory applications as well as for fusion magnesia which finds application as insulating material in the electric heating technique. In order not to lower the melting point, no SiO2 should be present in MgO-containing formulations. Chemical data for magnesium oxide are given on a separate page.  Magnesium oxide cannot be used in slurries or coatings based on aqueous systems, since it tends to form hydrates. As an alternative, solvent-containing systems should be taken into consideration, e. g. on alcohol base.

This page in German - Diese Seite in Deutsch
© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
These recommendations are believed to be correct. However, no guarantee of their accuracy is given. Therefore, purchasers shall make their own tests to determine suitability for their use. These products are offered for industrial and related uses (e.g. research and development) only. However the user must take the necessary precautions appropriate for products containing chemicals. This description does not imply the absence of any patents, the responsibility whatsoever solely rests with the user.