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393703

Sigma-Aldrich

Chromium(III) oxide

powder, ≥98%

Synonym(s):
Chromia
Empirical Formula (Hill Notation):
Cr2O3
CAS Number:
Molecular Weight:
151.99
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.55

Quality Level

assay

≥98%

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 a chromium complex in which the chromium ion is in +3 oxidation state. The synthesis of its sub-micron powder has been reported.† The IR and Raman spectra of chromium (III) oxide have been studied.† The impact of adding lysozyme on the stability of chromium (III) oxide (Cr2O3) suspension has been evaluated.†

Application

Chromium (III) oxide may be used in the following processes:
  • To modify carbon paste electrodes for optimizing its ability to detect nitric oxide.
  • Preparation of Ni+Cr2O3 composite coatings.
  • Formation of the ternary oxide, CrVMoO7 by solid-state reaction which may be employed in selective oxidation reactions.
Used in a solid-state reaction to form the new ternary oxide, CrVMoO7, can be used in selective oxidation.

Packaging

2 kg in poly bottle
100, 500 g in poly bottle

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

Quotes and Ordering

Amperometric Nitric Oxide Sensor Based on Carbon Paste Electrode Modified with Chromium (III) Oxide.
Berisha LS, et al.
Sensors & Transducers Journal, 184(1), 1726-5479 (2015)
Crystal Structure and Raman Spectroscopy of FeVMoO7 and CrVMoO7 with Mo=O Double Bonds.
Wang, X. et al.
Inorganic Chemistry, 37(13), 3252-3252 (1998)
The Hydrogen Evolution Reaction on Ni Electrode Material Modified with Molybdenum (IV) Oxide and Chromium (III) Oxide Powders.
Popczyk M and Losiewicz B.
Solid State Phenomena, 228 (2015)
Poornima Vajpayee et al.
Journal of biomedical nanotechnology, 7(1), 205-206 (2011-04-14)
In this study, seeds of Triticum aestivum L. (Poaceae) were exposed to 0-100 microg/mL chromium oxide nanoparticles (Cr2O3, Nps) to study the phytotoxic effects on seed germination and seedling growth. It has been observed that 25-100 microg/mL Cr2O3, Nps inhibited
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

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