Chromium Oxide Nanopowder Cr2O3 
Formula Cr2O3
Purity 99%
Particle Size 30 nm
SSA 15 m2/g
Morphology spherical
Bulk Density ~0.943 g/cm3
True Density 5.22  g/cm3
Appearance Green
CAS Number 1308-38-9
Molecular Weight 151.99


Chromium (III) oxide is the inorganic compound of the formula Cr2O3. It is one of principal oxides of chromium and is used as a pigment. In nature, it occurs as the rare mineral eskolaite. Because of its considerable stability, chromia is commonly used pigment and was originally called viridian. It is used in paints, inks, and glasses. It is the colourant in "chrome green" and "institutional green." Chromium(III) oxide is the precursor to the magnetic pigment chromium dioxide.