- Tallinn, Estonia
- US $25.00
- Jan 30th
Magnesium oxide, powder, 99.9+%, 100g CAS Number 1309-48-4 Molecular Weight 40.30 Linear Formula MgO Magnesium oxide (MgO), or magnesia, is a white hydroscopic solid mineral that occurs naturally as periclase and is a source of magnesium. Magnesium oxide was historically known as magnesia alba, to differentiate it from magnesia negra, a black mineral containing what is now known as manganese. MgO is one of the raw materials for making Portland cement in dry plants.