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232653

Sigma-Aldrich

Chromium(VI) oxide

ReagentPlus®, 99.9% trace metals basis

Sinónimos:

Chromic anhydride

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About This Item

Fórmula empírica (notación de Hill):
CrO3
Número de CAS:
1333-82-0
Peso molecular:
99.99
EC Number:
215-607-8
MDL number:
MFCD00010952
UNSPSC Code:
12352303
PubChem Substance ID:
329752406
NACRES:
NA.55

Quality Level

100

product line

ReagentPlus®

assay

99.9% trace metals basis

form

(powder and or flakes)

pH

<1 (20 °C, 100 g/L)

mp

196 °C (dec.) (lit.)

SMILES string

O=[Cr](=O)=O

InChI

1S/Cr.3O

InChI key

WGLPBDUCMAPZCE-UHFFFAOYSA-N

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Categorías relacionadas

General description

Chromium (VI) oxide is acidic anhydride of chromic acid. It is a useful oxidizing reagent for the conversions of:,Carbon-hydrogen bonds to alcohols,,Alkenes to α, β-unsaturated ketones,Alcohol to aldehydes, acids, and keto acids.

Application

Chromium (VI) oxide may be employed as a catalyst for the following reactions:
  • Transformation of various primary alcohols to carboxylic acids.
  • Oxidation of arenes (naphthalenes and anthrathene) to the corresponding quinones by using periodic acid as the terminal oxidant in acetonitrile.
  • Benzylic oxidation of various substituted toluene to the corresponding benzoic acids.
  • Oxidation of sulfides to sulfones.

Used with ammonium chloride to oxidize hydrobenzoins to benzils.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A - Eye Dam. 1 - Muta. 1B - Ox. Sol. 1 - Repr. 2 - Resp. Sens. 1 - Skin Corr. 1A - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3

target_organs

Respiratory system

Storage Class

5.1A - Strongly oxidizing hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Letters in Organic Chemistry, 3, 842-842 (2006)
Chromium (VI) Oxide.
Freeman F, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2008)
Chromium (VI) oxide-catalyzed oxidation of arenes with periodic acid.
Yamazaki S.
Tetrahedron Letters, 42(19), 3355-3357 (2001)
L Vayssieres et al.
Journal of nanoscience and nanotechnology, 1(4), 385-388 (2003-08-14)
We are reporting here on the inexpensive fabrication and optical properties of an iron(III) oxide-chromium(III) oxide nanocomposite thin film of corundum crystal structure. Its novel and unique-designed architecture consists of uniformed, well-defined and oriented nanorods of Hematite (alpha-Fe2O3) of 50
M C García-Rodríguez et al.
Mutation research, 496(1-2), 145-151 (2001-09-12)
The effect of chlorophyllin on micronucleated polychromatic erythrocytes (MN-PCE) induction by chromium trioxide (CrO(3)) exposure in peripheral blood of mice was studied. Animals were treated with a single intraperitoneal dose of chlorophyllin (CHL) (20mg/kg), CrO(3) (20mg/kg), and CHL (20mg/kg) 4h
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