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393703

Sigma-Aldrich

Chromium(III) oxide

powder, ≥98%

Synonym(s):

Chromia

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100 G
€42.40
500 G
€72.80
2 KG
€178.00

About This Item

Empirical Formula (Hill Notation):
Cr2O3
CAS Number:
1308-38-9
Molecular Weight:
151.99
EC Number:
215-160-9
MDL number:
MFCD00010949
UNSPSC Code:
12352303
PubChem Substance ID:
329755863
NACRES:
NA.55
Assay:
≥98%
form:
powder

€42.40

Please contact Customer Service for Availability
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Quality Level

100

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.[1]
  • Preparation of Ni+Cr2O3 composite coatings.[2]
  • Formation of the ternary oxide, CrVMoO7 by solid-state reaction which may be employed in selective oxidation reactions.[3]
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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV6116
MKCT4606
MKCQ5696
MKCK3017
MKCG9921

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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)
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)
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)
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
Selvam Sangeetha et al.
Colloids and surfaces. B, Biointerfaces, 100, 36-41 (2012-07-07)
Stabilization of collagen for various applications employs chemicals such as aldehydes, metal ions, polyphenols, etc. Stability against enzymatic, thermal and mechanical degradation is required for a range of biomedical applications. The premise of this research is to explore the use
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