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393703

Sigma-Aldrich

Chrom(III)-oxid

powder, ≥98%

Synonym(e):

Chromsesquioxid

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About This Item

Empirische Formel (Hill-System):
Cr2O3
CAS-Nummer:
1308-38-9
Molekulargewicht:
151.99
EG-Nummer:
215-160-9
MDL-Nummer:
MFCD00010949
UNSPSC-Code:
12352303
PubChem Substanz-ID:
329755863
NACRES:
NA.55

Qualitätsniveau

100

Assay

≥98%

Form

powder

SMILES String

O=[Cr]O[Cr]=O

InChI

1S/2Cr.3O

InChIKey

QDOXWKRWXJOMAK-UHFFFAOYSA-N

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Allgemeine Beschreibung

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.†

Anwendung

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.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

nwg

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

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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)
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
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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