Skip to Content
Merck
All Photos(2)

Documents

675644

Sigma-Aldrich

Chromium(VI) oxide

99.99% trace metals basis

Synonym(s):

Chromic anhydride

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
CrO3
CAS Number:
1333-82-0
Molecular Weight:
99.99
EC Number:
215-607-8
MDL number:
MFCD00010952
UNSPSC Code:
12352303
PubChem Substance ID:
24885294
NACRES:
NA.23

Assay

99.99% trace metals basis

form

powder or flakes

reaction suitability

reagent type: oxidant

mp

196 °C (dec.) (lit.)

application(s)

battery manufacturing

SMILES string

O=[Cr](=O)=O

InChI

1S/Cr.3O

InChI key

WGLPBDUCMAPZCE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Chromium(VI) oxide (CrO3) is a hexavalent chromium that is majorly used as an oxidizing agent. It oxidizes the C-H bonds in the aromatic rings to form benzoic acid from alkyl benzene. It can be prepared by adding concentrated sulphuric acid in potassium dichromate.

Signal Word

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 Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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.

EU REACH SVHC Candidate List

CAS No.

EU REACH Annex XVII (Restriction List)

CAS No.

EU REACH Annex XIV (Authorisation List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 2

1 of 2

Chromium(III) oxide powder, ≥98%

Sigma-Aldrich

393703

Chromium(III) oxide

Chromium powder, ≥99% trace metals basis, <45 μm

Sigma-Aldrich

266299

Chromium

Chromium Oxidations in Organic Chemistry (2011)
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
Adam Szelag et al.
Polish journal of pharmacology, 55(6), 1097-1103 (2004-01-20)
Hexavalent chromium compounds exhibit higher toxicity than its trivalent compounds since chromium ions in the +6 oxidation state easily cross biological membranes. It has recently been proposed that substances reducing chromium ions from the +6 to the less toxic +3
Seongmin Lee et al.
Organic letters, 11(1), 5-8 (2008-12-06)
The C14,15-dihydro-C22,25-epi north unit of cephalostatin 1 has been synthesized in 11 operations from commercially available hecogenin acetate via multiple reductions and oxidations. The key transformations include (i) Cr(VI)-catalyzed E-ring opening, (ii) C17 hydroxylation, and (iii) a base-triggered cyclization cascade.
S Kondo et al.
European journal of biochemistry, 200(3), 689-698 (1991-09-15)
The chemical structure of the saccharide portion of Vibrio parahaemolyticus serotype 012 lipopolysaccharide was studied. Using chemical degradation and modification, as well as methylation analysis in combination with GLC-MS, laser-desorption mass spectrometry and 1H-NMR and 13C-NMR spectroscopy, the carbohydrate backbone
View All Related Papers

Articles

Soft Magnetic Nanocrystalline Alloys: Materials

Magnetic materials find diverse applications from data storage to renewable energy.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service