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Merck

393703

Chromium(III) oxide

powder, ≥98%

Synonym(s):

Chromia

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About This Item

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

Key Documents

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InChI key

QDOXWKRWXJOMAK-UHFFFAOYSA-N

InChI

1S/2Cr.3O

SMILES string

O=[Cr]O[Cr]=O

assay

≥98%

form

powder

Quality Level

100

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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.

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Group 1: Oxidizing solids + Oxidation products of chromium, lead, or iodine + Hazardous rank I + 1st oxidizing solid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

393703-500G:4548173959597 + 393703-2KG:4548173959580 + 393703-BULK: + 393703-VAR: + 393703-100G:4548173959573

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Certificates of Analysis (COA)

Lot/Batch Number
MKDB2166
MKDB2167
MKCV6116
MKCT4606
MKCQ5696

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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)
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)
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
Defa Wang et al.
Nano letters, 11(6), 2353-2357 (2011-05-17)
We report on the achievement of wafer-level photocatalytic overall water splitting on GaN nanowires grown by molecular beam epitaxy with the incorporation of Rh/Cr(2)O(3) core-shell nanostructures acting as cocatalysts, through which H(2) evolution is promoted by the noble metal core
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