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634239

Sigma-Aldrich

Chromium(III) oxide

nanopowder, <100 nm particle size (TEM), 98% 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:
12352302
PubChem Substance ID:
NACRES:
NA.23

Assay

98% trace metals basis

form

nanopowder

particle size

<100 nm (TEM)

SMILES string

O=[Cr]O[Cr]=O

InChI

1S/2Cr.3O

InChI key

QDOXWKRWXJOMAK-UHFFFAOYSA-N

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Application

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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In vitro macrophage response to nanometer-size chromium oxide particles
VanOs R, et al.
Journal of Biomedical Materials Research. Part B, Applied Biomaterials, 102(1), 149-159 (2014)
S E Dutton et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 23(24), 246005-246005 (2011-06-01)
α-SrCr(2)O(4) has a triangular planar lattice of d(3) Cr(3+) made from edge sharing CrO(6) octahedra; the plane shows a very small orthorhombic distortion from hexagonal symmetry. With a Weiss temperature of - 596 K and a three-dimensional magnetic ordering temperature
Nien-Hsun Li et al.
Journal of hazardous materials, 198, 356-361 (2011-11-15)
The feasibility of stabilizing nickel-laden sludge by a high-temperature NiCr(2)O(4) synthesis process was investigated with different sintering temperatures, salt contents, molar ratios, and reaction atmospheres. The crystalline phases of species were investigated by using an X-ray diffraction, and the surface
Noriko Nishino et al.
Physical chemistry chemical physics : PCCP, 14(45), 15840-15848 (2012-10-24)
While many studies of heterogeneous chemistry on Cr(2)O(3) surfaces have focused on its catalytic activity, less is known about chemistry on this surface under atmospheric conditions. We report here studies of the thermal and photochemical reactions of NO(2) on Cr(2)O(3)
Yuanmin Wang et al.
Langmuir : the ACS journal of surfaces and colloids, 29(3), 950-956 (2012-12-20)
We investigate the single-cell reduction of toxic Cr(VI) by the dissimilatory metal-reducing bacterium Shewanella oneidensis MR-1 (MR-1), an important bioremediation process, using Raman spectroscopy and scanning electron microscopy (SEM) combined with energy-dispersive X-ray spectroscopy (EDX). Our experiments indicate that the

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