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1.02483

Chromium(III) oxide

anhydrous, Technipur®

Synonym(s):

Chromic oxide, Chromium sesquioxide, Chromium(3+) oxide, Chromium(III) trioxide, Dichromium trioxide, Trioxochromium, Chromia

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About This Item

Empirical Formula (Hill Notation):
Cr2O3
CAS Number:
Molecular Weight:
151.99
UNSPSC Code:
12352303
NACRES:
NA.21
MDL number:


grade

anhydrous

Quality Segment

density

5.22 g/cm3

SMILES string

O=[Cr]O[Cr]=O

InChI

1S/2Cr.3O

InChI key

QDOXWKRWXJOMAK-UHFFFAOYSA-N

General description

Chromium(III) oxide (Cr2O3) is an inorganic compound with wide applications in construction materials, heterogeneous catalysis, enamels, green pigments, plastic, and paints. These listed applications are due to its unique properties like high oxidative resistance and melting temperature. Furthermore, a permanent green coloring in cement is achieved by Cr2O3.

Application

Used in a solid-state reaction to form the new ternary oxide, CrVMoO7, can be used in selective oxidation.
Chromium(III) oxide can be used:
  • To dope TiO2 nanocrystallites photoanodes applicable in dye-sensitized solar cells.
  • As a bulk mediator in the modification of carbon paste electrodes applicable in nitric oxide sensing.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany


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Storage Class

11 - Combustible Solids

WGK

nwg

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable



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