Product Description：
Magnesium oxide, or magnesia, is a white solid mineral that occurs
naturally as periclase and is a source of magnesium (see also
oxide). It has an empirical formula of MgO. It is formed by an
ionic bond between one magnesium and one oxygen atom. Magnesium
oxide is easily made by burning magnesium ribbon which oxidizes in
a bright white light, resulting in a powder. It is hygroscopic in
nature and care must be taken to protect it from moisture.
Magnesium hydroxide forms in the presence of water (MgO + H2O →
Mg(OH)2), but it can be reversed by heating it to separate
moisture.
Applications:
It is used by many libraries for preserving books by reacting with
ambient moisture to dry the book storage
areas.
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 industrial
cables.
It is used as a basic refractory material for
crucibles.
It is used as a principal ingredient in construction materials used
for fireproofing.
It is used by rock climbers as a way to reduce sweat and moisture
on hands and holds.
It is used as a reference white color in colorimetry, owing to its
good diffusing and reflectivity properties. It may be smoked onto
the surface of an opaque material to form an integrating
sphere.
