Magnesium Oxide

CAS number: 1309-48-4

Molecular formula: MgO

molecular weight: 40.3044

Chemical structure:


Product nameMagnesium Oxide
Shelf Life2 Years
Test ItemSpecified ValueTest Result
AppearanceFine, White powderPositive
IdentificationReaction of magnesium
 Content (%)  calculated as MgO96.0 - 100.598.24
Appearance of Solution≤ B3Positive 
SolubilityWater insoluble, dissolve in dilute acid with slight effervescePositive 
Soluble Substances (%)≤ 2.01.8
Substances insoluble in acid (%)≤ 0.10.1
Calcium (%)≤ 1.10.1
Iron (%) 0.05≤ 0.05
Heavy Metals (ppm) 20 15
Particle Size D50 (μm)
Approx. 10μm
Approx. 10μm≤ 0.350.31