Cobalt oxides Uses Preparation Toxicity
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Cobalt oxide

Cobalt oxides Uses Preparation Toxicity
Product Name
Cobalt oxide
CAS No.
1307-96-6
Chemical Name
Cobalt oxide
Synonyms
CoO;COBALT(II) OXIDE;COBALTOUS OXIDE;Cobalt oxide (CoO);1,2-Benzenedimethanethiol, 4,5-dimethyl-;Zaffre;ci77322;Black 13;c.i.77322;Oxocobalt
CBNumber
CB9216703
Molecular Formula
CoO
Formula Weight
74.93
MOL File
1307-96-6.mol
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Cobalt oxide Property

Melting point:
1785 °C
Density 
6.45
vapor pressure 
0Pa at 20℃
solubility 
insoluble in H2O; soluble in acid solutions
form 
Powder
Specific Gravity
6.45
color 
Green-brown
Water Solubility 
insoluble
Sensitive 
Air Sensitive
Merck 
14,2446
Exposure limits
ACGIH: TWA 1 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
Stability:
Stability Stable, but may be moisture sensitive.
InChI
InChI=1S/Co.O
InChIKey
IVMYJDGYRUAWML-UHFFFAOYSA-N
SMILES
O=[Co]
CAS DataBase Reference
1307-96-6(CAS DataBase Reference)
NIST Chemistry Reference
Cobalt monoxide(1307-96-6)
EPA Substance Registry System
Cobalt(II) oxide (1307-96-6)
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Safety

Hazard Codes 
Xn,N,T+
Risk Statements 
22-43-50/53-42/43-26
Safety Statements 
24-37-60-61-45-36/37-28
RIDADR 
UN 3288 6.1/PG 3
WGK Germany 
3
RTECS 
GG2800000
TSCA 
Yes
HazardClass 
6.1(b)
PackingGroup 
III
HS Code 
28220000
Hazardous Substances Data
1307-96-6(Hazardous Substances Data)
Toxicity
LD50 orally in rats: 1.70 g/kg (Smyth)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

H317May cause an allergic skin reaction

H330Fatal if inhaled

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P202Do not handle until all safety precautions have been read and understood.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
343153
Product name
Cobalt(II) oxide
Purity
325 mesh
Packaging
10g
Price
$101
Updated
2024/03/01
Sigma-Aldrich
Product number
343153
Product name
Cobalt(II) oxide
Purity
325 mesh
Packaging
100g
Price
$760
Updated
2024/03/01
Alfa Aesar
Product number
023141
Product name
Cobalt(II) oxide, 95%
Packaging
25g
Price
$121
Updated
2024/03/01
Alfa Aesar
Product number
023141
Product name
Cobalt(II) oxide, 95%
Packaging
100g
Price
$344
Updated
2024/03/01
Strem Chemicals
Product number
27-0480
Product name
Cobalt oxide-molybdenum oxide on alumina (3.5% CoO, 14% MoO3)
Purity
14% MoO3)
Packaging
100g
Price
$77
Updated
2024/03/01
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Cobalt oxide Chemical Properties,Usage,Production

Cobalt oxides

Cobalt oxides have three oxidation states, namely: (i) cobaltous oxide (cobalt monoxide or cobalt [II] oxide) with CoO chemical formula, (ii) cobaltic oxide (cobalt [III] oxide) with Co2O3 chemical formula and (iii) cobaltosic oxide (cobalt [II, III] oxide) with Co3O4 chemical formula, which is an antiferromagnetic material. The first and the last oxidation states have a cubic crystal structure.
Cobalt oxide is used in pigments for ceramics, in glass coloring and decolorization, as oxidation catalyst for drying oils, and fast-drying paints and varnishes, in preparation of cobalt-metal catalysts, and cobalt powder for binder in sintered tungsten carbide; in semiconductors.

Uses

Cobalt(II) oxide is used as a pigment for ceramics and paints; for drying paints, varnishes and oils; for coloring glass; as a catalyst; and for preparation of other cobalt salts. The commercial product is a mixture of cobalt oxides.

Preparation

Cobalt(II) oxide is prepared by heating cobalt(II) carbonate, CoCO3, cobalt(III) oxide, Co2O3 or tricobalt tetroxide, Co3O4, at high temperatures in a neutral or slightly reducing atmosphere:
CoCO3 → CoO + CO2

Toxicity

Cobalt(II) oxide is moderately toxic by ingestion and subcutaneous and intratracheal routes.
LD50 oral (rat): 202 mg/kg

Description

This is obtained as an olive-green powder by heating the metal in air or steam or by thermal decomposition of the hydroxide, carbonate or nitrate. It has the sodium chloride lattice and is antiferromagnetic below 292°K. When heated in oxygen above 400° the black oxide Co3O4 is obtained. This oxide is isomorphous with magnetite Fe3O4, and has tetrahedrally surrounded cobalt(II) ions and octahedrally surrounded cobalt(III) ions. Both these oxides are readily reduced to the metal by heating in hydrogen or with carbon. The reactions of CoO with silica, alumina and zinc oxide are used to form pigments in the ceramic industry.

Chemical Properties

Cobalt oxide is a high-valent oxide of cobalt, with a theoretical cobalt content of 71.06% and an oxygen content of 28.94%, which is a black amorphous powder. Cobalt oxide is a kind of unstable and impossible free state compound, usually refers to the cobalt oxide are attached with a certain amount of cobalt tetraoxide when heated cobalt oxide is reduced to cobalt tetraoxide. The theoretical cobalt content of cobalt tetraoxide is 73.43% and the oxygen content is 26.57%, with the appearance of gray-black or black powder.

The cobalt oxide used in batteries is cobalt tetraoxide, which has a spinel structure. It can be used as anode material for lithium-ion batteries and is also the main raw material for the preparation of lithium cobaltate, the cathode material for lithium-ion batteries.

Physical properties

The commercial product is usually dark grey powder, but the color may vary from olive geeen to brown depending on particle size; density 6.44 g/cm3, which also may vary between 5.7 to 6.7 g/cm3, depending on the method of preparation; melts around 1,830°C; insoluble in water; soluble in acids and alkalis.

Uses

In pigments for ceramics; glass coloring and decolorization; oxidation catalyst for drying oils, fast-drying paints and varnishes; preparation of cobalt-metal catalysts, Co powder for binder in sintered tungsten carbide; in semiconductors.

Uses

Cobalt oxide, typically 3.4-4.5%, Molybdenum oxide typically 11.5-14.5% on alumina is used in the preparation of biofuel production by using algae.

Flammability and Explosibility

Not classified

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View Lastest Price from Cobalt oxide manufacturers

Hebei Yanxi Chemical Co., Ltd.
Product
Cobalt oxide 1307-96-6
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
100tons
Release date
2023-08-08
Hebei Guanlang Biotechnology Co., Ltd.
Product
Cobalt oxide 1307-96-6
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2023-02-21
Hebei Mojin Biotechnology Co., Ltd
Product
Cobalt oxide 1307-96-6
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-09-07

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