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1308-06-1

Supplier Related Products Identification Chemical Properties Safety Data Raw materials And Preparation Products Material Safety Data Sheet(MSDS) Questions And Answer Well-known Reagent Company Product Information

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Identification

Name
Tricobalt tetraoxide
CAS
1308-06-1
Synonyms
COBALT BLACK
COBALTIC OXIDE
Cobalt(II
COBALT(III) OXIDE BLACK
COBALT (II) OXIDE
COBALT SESQUIOXIDE
Co3-O4
Cobalt oxide (Co3O4)
Cobalticcobaltousoxide
cobaltic-cobaltousoxide
cobalto-cobaltictetroxide
cobaltosicoxide
cobaltoxide(co3o4)
Tricobalttetroxide
COBALT(II III)OXIDE FOR THE DETER-&
COBALT(II,III) OXIDE, NANOPOWDER, 99.8% METALS BASIS COBALT (II,III) OXIDE, NANOPOWDER, 99.8% METALS BASIS
COBALT(II,III) OXIDE, 99.995%
CobaltOxidePure
CobaltOxideGr-(CobaltousOxideGr)
CobaltOxidePure-(CobaltousOxide)
EINECS(EC#)
215-157-2
Molecular Formula
Co3O4-2
MDL Number
MFCD00036266
Molecular Weight
240.8
MOL File
1308-06-1.mol

Chemical Properties

Appearance
Black fine powder
mp 
895 °C (dec.)(lit.)

bp 
3800°C
density 
6.11 g/mL at 25 °C(lit.)

form 
powder

Merck 
14,2429
CAS DataBase Reference
1308-06-1(CAS DataBase Reference)
NIST Chemistry Reference
Cobalt oxide(1308-06-1)
EPA Substance Registry System
1308-06-1(EPA Substance)

Safety Data

Hazard Codes 
Xn,T
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R40:Limited evidence of a carcinogenic effect.
R43:May cause sensitization by skin contact.
R49:May cause cancer by inhalation.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves .
S53:Avoid exposure-obtain special instruction before use .
RIDADR 
1477
WGK Germany 
1

RTECS 
GG2500000

HS Code 
28220000

Raw materials And Preparation Products

Material Safety Data Sheet(MSDS)

Questions And Answer

Description
Cobalt Oxide (II, III) is a kind oxide of cobalt. It has applications in enamels, semiconductors, grinding wheels. As an important inorganic material, it can be used in catalysis, superconductors, ceramics and other fields. It can also be used as catalyst and catalyst carrier, as electrode active material, for glass, porcelain colorants and pigments, as chemical industry oxidant and as a catalyst for organic synthesis, in senior goggles and other filter materials, in temperature and gas sensors, in electronic ceramics, in lithium ion battery electrode materials, magnetic materials, electrochromic devices, enamels, solar energy absorbers. Cobalt oxide nanoparticles can readily enter cells, and have the potential to be used for hyperthermic treatment, gene therapy and drug delivery. It is more commonly applied for energy storage such as Lithium-ion battery. It may also be used as a gas sensor in sensing toluene, acetone and some other toxic vapors.
Preparation
Tricobalt tetroxide is obtained when cobalt(II) carbonate, cobalt(II) or cobalt(III) oxide, or cobalt hydroxide oxide, CoO(OH) is heated in air at temperatures above 265°C. The temperature must not exceed 800°C (see decomposition temperature above).
Reactions
Heating above 900°C expels oxygen out of the molecule forming cobalt(II) oxide:
2Co3O4 6CoO + O2
Tricobalt tetroxide absorbs oxygen at lower temperatures, but there is no change in the crystal structure.)
The oxide is reduced to its metal by hydrogen, carbon or carbon monoxide.
Co3O4 + 4H2 3Co + 4H2O
Co3O4 + 4CO 3Co + 4CO2
Sources
https://en.wikipedia.org/wiki/Cobalt(II,III)_oxide
https://www.alfa.com/zh-cn/catalog/040184/
https://en.wikipedia.org/wiki/Cobalt_oxide_nanoparticle
https://pubchem.ncbi.nlm.nih.gov/compound/6432046#section=Top

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