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Sigma-Aldrich

Chromium(III) oxide

powder, 99.9% trace metals basis

Synonym(s):

Chromia

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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

SMILES string

O=[Cr]O[Cr]=O

InChI

1S/2Cr.3O

InChI key

QDOXWKRWXJOMAK-UHFFFAOYSA-N

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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.

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.
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.
Used in a solid-state reaction to form the new ternary oxide, CrVMoO7, can be used in selective oxidation.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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C Villaverde et al.
Poultry science, 87(3), 497-505 (2008-02-19)
An experiment was designed to assess the effect of dietary unsaturated fat inclusion level on alpha-tocopherol apparent absorption and deposition in broiler chickens at 2 ages (20 and 39 d). The dietary fat was a mixture of linseed and fish
Chromium Compounds
Anger G, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Wang, X. et al.
Inorganic Chemistry, 37, 3252-3252 (1998)
R Brahimi et al.
Journal of hazardous materials, 219-220, 19-25 (2012-04-17)
In this study, 64% of hexavalent chromium Cr(VI) reduction from the initial concentration (10(-4) M) is reported under visible light using the (CuAlO(2)/CdS) hetero-system. In this new hetero-system, low doped CuAlO(2) delafossite, synthesized by sol-gel works as an electrons reservoir
W-S Cho et al.
The European respiratory journal, 39(3), 546-557 (2011-08-11)
Lung exposure to metal oxide nanoparticles (NPs) comprising soluble metal haptens may produce T-helper cell type 1 (Th1)- and Th17-associated delayed-type hypersensitivity (DTH) responses and pulmonary alveolar proteinosis (PAP). In order to study this, haptenic metal oxide NPs (NiO, Co(3)O(4)

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