Magnesium oxide is used as a laboratory reagent, and a good reference white color for colorimetry. Magneisum oxide microspheres is used for enrichment method of polycyclic aromatic hydrocarbons. It is also used in groundwater studies.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.