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Chromium(IV) Oxide

Chromium(IV) Oxide

CAS No.: 12018-01-8

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Features

CAS No.:

12018-01-8

Linear Formula:

CrO2

Purity:

99% - 99.999%

Appearance:

Black powder or crystals

Chromium(IV) Oxide Description

Chromium(IV) oxide or chromium dioxide is a highly insoluble thermally stable chromium source suitable for glass, optic and ceramic applications. Additionally, chomium dioxide is a magnetically retrievable crystalline selective oxidant for simple alcohols and hydrocarbons and is used in some magnetic data storage tapes.

Oxide compounds are not conductive to electricity. However, certain perovskite structured oxides are electronically conductive finding application in the cathode of solid oxide fuel cells and oxygen generation systems. They are compounds containing at least one oxygen anion and one metallic cation. They are typically insoluble in aqueous solutions (water) and extremely stable making them useful in ceramic structures as simple as producing clay bowls to advanced electronics and in light weight structural components in aerospace and electrochemical applications such as fuel cells in which they exhibit ionic conductivity. Metal oxide compounds are basic anhydrides and can therefore react with acids and with strong reducing agents in redox reactions.

Chromium(IV) Oxide Applications and Related Industries

● Glass

● Optic

● Ceramic

● Audiotapes

● Phonograph records

● Memory devices

● Permanent magnets

● Catalyst

● Chemical Manufacturing

● Research & Laboratory

Chemical Identifiers

Linear Formula

CrO2

MDL Number

MFCD00049888

EC No.

234-630-4

Beilstein/Reaxys No.

N/A

Pubchem CID

N/A

IUPAC Name

oxo-(oxochromiooxy) chromium

SMILES

Dioxochromium

InchI Identifier

InChI=1S/Cr.2O

InchI Key

AYTAKQFHWFYBMA-UHFFFAOYSA-N

Chromium(IV) Oxide Properties (Theoretical)

Compound Formula

CrO2

Molecular Weight

83.9949

Appearance

Black powder or crystals

Melting Point

>375 °C

Boiling Point

4000 °C (7232 °F)

Density

4.85 g/cm3

Solubility in H2O

N/A

Exact Mass

83.994904

Monoisotopic Mass

83.930344

Chromium(IV) Oxide Health & Safety Information

Signal Word

Danger

Hazard Statements

H271-H301 + H311-H314-H317-H330-H334-H340-H350-H361f-H372-H410

Hazard Codes

Xi

Precautionary Statements

P201-P210-P260-P280-P284-P301 + P310 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338-P308 + P313-P371 + P380 + P375-P403 + P233

Flash Point

Not applicable

Risk Codes

36

Safety Statements

26-36

RTECS Number

GB6650000

Transport Information

UN 1463 8(6.1)(5.1) / PGII

WGK Germany

3

GHS Pictograms

GHS03 Oxidizer

image003

GHS05 Corrosive

image004


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