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203068

Sigma-Aldrich

Chromium(III) oxide

powder, 99.9% trace metals basis

Synonym(s):

Chromia

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5 G
$87.40
25 G
$279.00

About This Item

Empirical Formula (Hill Notation):
Cr2O3
CAS Number:
Molecular Weight:
151.99
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.55
assay:
99.9% trace metals basis
form:
powder

$87.40


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assay

99.9% trace metals basis

form

powder

SMILES string

O=[Cr]O[Cr]=O

InChI

1S/2Cr.3O

InChI key

QDOXWKRWXJOMAK-UHFFFAOYSA-N

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1 of 4

This Item
393703769533634239
form

powder

form

powder

form

powder

form

nanopowder

assay

99.9% trace metals basis

assay

≥98%

assay

-

assay

98% trace metals basis

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

Chromium(III) oxide is also referred to as chromic oxide. It is commonly employed as a marker in various digestion assays conducted on animals.
Chromium(III) oxide is mainly used as a green pigment in paints, inks and ceramics. On a commercial scale, it is synthesized by the reduction of sodium chromate with sulfur.[1]

Application

Chromium(III) oxide (Cr2O3) has been used as a standard for the determination of chromium content in cattle feces by employing different digestion techniques.1 It has also been employed as a digestibility marker in a study.[2]
Used in a solid-state reaction to form the new ternary oxide, CrVMoO7, can be used in selective oxidation.
Used in a solid-state reaction to form the new ternary oxide, CrVMoO7, which should find application in selective oxidation. Its crystal structure was also determined.[3]

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable


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Questions

  1. What is the average particle size for this chromium oxide powder?

    1 answer
    1. The particle size of this product is not a determined test specification, and testing is not performed on a lot to lot basis. However, historical data indicates the particle size is expected to be approximately 60 mesh.

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