Molecular formula Cr2O3, relative molecular weight 151.99, this product is hexagonal crystal extraction series or amorphous olive green powder, with metallic luster.Specific gravity 5.21, melting point 2266±25, boiling point 4000.Insoluble in water and acid, soluble in hot alkaline bromide solution.Very stable to light, atmosphere, high temperature and corrosive gases, good hiding power, magnetic.
Product Description
Product Description:
Chrome Oxide Green
CAS No.: 1308-38-9
Characteristic and use: Green powder with strong coloring strength and good dispersion, always used for coatings, printing ink and enamel industry etc.
Chromium(iii) oxide is the inorganic compound of the formula cr2o3.
It is one of the principal oxides of chromium and is used as a pigment.
In nature, it occurs as the rare mineral eskolaite.
Properties
Chemical formulacr2o3
Molar mass151.9904 g/mol
Appearancelight to dark green, fine crystals
Density5.22 g/cm3
Melting point2435 c
Boiling point4000 c
Solubility in waterinsoluble
Solubility inalcoholinsoluble in alcohol, acetone, acids
[applications]
Because of its considerable stability, chromia is a 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 a precursor to the magnetic pigment chromium dioxide.It is one of the materials that are used when polishing (also called stropping) the edges of knives, razors
