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Safety Information

27081

Sigma-Aldrich

Chromium(VI) oxide

puriss. p.a., ACS reagent, ≥99.0% (RT)

Synonym(s):

Chromic anhydride

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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:
329752970
Assay:
≥99.0% (RT)
form:
powder, crystals or granules

grade

ACS reagent
puriss. p.a.

Assay

≥99.0% (RT)

form

powder, crystals or granules

impurities

≤0.005% total nitrogen (N)

pH

<1 (20 °C, 100 g/L)

mp

196 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤50 mg/kg
Ba: ≤50 mg/kg
Ca: ≤100 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cu: ≤10 mg/kg
Fe: ≤100 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤10 mg/kg
Na: ≤2000 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

O=[Cr](=O)=O

InChI

1S/Cr.3O

InChI key

WGLPBDUCMAPZCE-UHFFFAOYSA-N

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Other Notes

Oxidant used in the decomposition by solubilization or fusion

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

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.

PRTR

Specified Class I Designated Chemical Substances

FSL

Group 1: Oxidizing solids
Oxidation products of chromium, lead, or iodine
Hazardous rank III
3rd oxidizing solid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

27081-VAR-F:
27081-50G-F:4548173219356
27081-BULK-F:
27081-1KG-F:4548173219332
27081-250G-F:4548173219349

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Certificates of Analysis (COA)

Lot/Batch Number
BCBS8841V

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Raman spectroscopy of chromium oxide supported on Al2O3, TiO2 and SiO2: A comparative study.
Hardcastle FD and Wachs IE.
J. Mol. Catal., 46(1), 173-186 (1988)
R. Bock
Aufschlussmethoden der anorg. & org. Chemie (1972)
Study of the chromium (VI) oxide-pyridine complex.
Holum JR.
The Journal of Organic Chemistry, 26(12), 4814-4816 (1961)
Z. Sulcek et al.
Methods of Decomposition in Inorganic Analysis (1989)
Chromium (VI) oxide-catalyzed oxidation of arenes with periodic acid.
Yamazaki S.
Tetrahedron Letters, 42(19), 3355-3357 (2001)
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