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ChemicalBook >> CAS DataBase List >>Cobalt oxide

Cobalt oxide

CAS No.
1307-96-6
Chemical Name:
Cobalt oxide
Synonyms
CoO;COBALT(II) OXIDE;COBALTOUS OXIDE;Cobalt monooxide;Cobalt oxide (CoO);1,2-Benzenedimethanethiol, 4,5-dimethyl-;Zaffre;ci77322;Black 13;c.i.77322
CBNumber:
CB9216703
Molecular Formula:
CoO
Molecular Weight:
74.93
MDL Number:
MFCD00016031
MOL File:
1307-96-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-06-09 13:55:34
Product description Number Pack Size Price
Cobalt(II) oxide 325 mesh 343153 10g $112
Cobalt(II) oxide 325 mesh 343153 100g $842
Cobalt(II) oxide nanopowder, 50 nm avg. part. size, ≥99.5% trace metals basis 933783 100 g $372
Cobalt oxide-molybdenum oxide on alumina (3.5% CoO, 14% MoO?) 27-0480 100g $79
Cobalt oxide-molybdenum oxide on alumina (3.5% CoO, 14% MoO?) 27-0480 500g $317
More product size

Cobalt oxide Properties

Melting point 1785 °C
Density 6.45
bulk density 0.966g/cm3
vapor pressure 0Pa at 20℃
storage temp. Store at room temperature, keep dry and cool
solubility insoluble in H2O; soluble in acid solutions
form Powder
Specific Gravity 6.45
color Green-brown
Water Solubility insoluble
Thermal Conductivity 10.042 W/(m·K)
Sensitive Air Sensitive
Crystal Structure NaCl type
crystal system Cube
Merck 14,2446
Space group Fm3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.42630.42630.42639090900.0775
Exposure limits ACGIH: TWA 1 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
Stability Stability Stable, but may be moisture sensitive.
Major Application battery manufacturing
InChI InChI=1S/Co.O
InChIKey IVMYJDGYRUAWML-UHFFFAOYSA-N
SMILES O=[Co]
CAS DataBase Reference 1307-96-6(CAS DataBase Reference)
FDA 21 CFR 582.80(Trace minerals added to animal feeds)
EWG's Food Scores 5
FDA UNII V9X9644V7Q
Proposition 65 List Cobalt (II) Oxide
NIST Chemistry Reference Cobalt monoxide(1307-96-6)
EPA Substance Registry System Cobalt(II) oxide (1307-96-6)
UNSPSC Code 12352303
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)Health Hazard (GHS08)Environment (GHS09)
GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H301-H317-H330-H334-H350i-H360F-H410
Precautionary statements  P202-P260-P273-P280-P302+P352-P304+P340+P310
PPE dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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  TSCA listed
HazardClass  6.1(b)
PackingGroup  III
HS Code  28220000
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Inhalation
Acute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 1
Carc. 1B Inhalation
Repr. 1B
Resp. Sens. 1B
Skin Sens. 1B
Hazardous Substances Data 1307-96-6(Hazardous Substances Data)
Toxicity LD50 orally in rats: 1.70 g/kg (Smyth)
REACH Registrations Active
NFPA 704
0
2 0

Cobalt oxide price More Price(40)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 343153 Cobalt(II) oxide 325 mesh 1307-96-6 10g $112 2026-04-30 Buy
Sigma-Aldrich 343153 Cobalt(II) oxide 325 mesh 1307-96-6 100g $842 2026-04-30 Buy
Sigma-Aldrich 933783 Cobalt(II) oxide nanopowder, 50 nm avg. part. size, ≥99.5% trace metals basis 1307-96-6 100 g $372 2025-07-31 Buy
Strem Chemicals 27-0480 Cobalt oxide-molybdenum oxide on alumina (3.5% CoO, 14% MoO?) 1307-96-6 100g $79 2026-04-30 Buy
Strem Chemicals 27-0480 Cobalt oxide-molybdenum oxide on alumina (3.5% CoO, 14% MoO?) 1307-96-6 500g $317 2026-04-30 Buy
Product number Packaging Price Buy
343153 10g $112 Buy
343153 100g $842 Buy
933783 100 g $372 Buy
27-0480 100g $79 Buy
27-0480 500g $317 Buy

Cobalt oxide Chemical Properties,Uses,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.
Cobalt oxide
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.

Structure and conformation

Green cobalt(II) oxide (CoO) has the rock salt (NaCl) structure. It is easily oxidized with water and oxygen to brown cobalt(III) hydroxide (Co(OH)3). At temperatures of 600℃-700℃, CoO oxidizes to the blue cobalt (II,III) oxide (Co3O4), which has a spinel structure. Black cobalt(III) oxide (Co2O3) also exists. Cobalt oxides are antiferromagnetic at low temperature: CoO (Ne′el temperature 18℃/291K) and Co3O4 (Ne′el temperature: 2233℃/40K), which is analogous to magnetite (Fe3O4), with a mixture of 12 and 13 oxidation states.

Global( 449)Suppliers
Supplier Tel Email Country ProdList Advantage
henan kanbei chemical co.,ltd
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View Lastest Price from Cobalt oxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Cobalt oxide pictures 2026-03-20 Cobalt oxide
1307-96-6
 $10.00 1KG 99%min 200tons Hebei Chuanghai Biotechnology Co., Ltd
Cobalt oxide pictures 2025-12-24 Cobalt oxide
1307-96-6
 1KG 99.0% 10000KG Shaanxi Dideu Medichem Co. Ltd
Cobalt oxide pictures 2025-06-27 Cobalt oxide
1307-96-6
 1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
  • Cobalt oxide pictures
  • Cobalt oxide
    1307-96-6
  • $10.00
  • 99%min
  • Hebei Chuanghai Biotechnology Co., Ltd
  • Cobalt oxide pictures
  • Cobalt oxide
    1307-96-6
  • 99%
  • Hebei Chuanghai Biotechnology Co., Ltd

Cobalt oxide Spectrum

C.I. 77322 C.I. Pigment black 13 c.i.77322 c.i.pigmentblack13 ci77322 cipigmentblack13 Cobalt(2+) oxide cobalt(2+)oxide cobaltmonooxide cobaltoxide(coo) Monocobalt oxide monocobaltoxide Prepared cobalt oxide Zaffre COBALT OXIDE COBALT MONOXIDE COBALTOUS (II) OXIDE COBALTOUS MONOXIDE Cobalt(II) oxide, 99.999% (metals basis) Cobalt (II) oxide, 95 % COBALT(II) OXIDE, -325 MESH COBALT(II) OXIDE, 99.99+% Cobalt(Ⅱ)oxde COBALT OXID Cobalt(Ⅱ) oxide COBALT(II) OXIDE POWDER Black 13 Cobalt(II) oxide, -325 mesh, 99+% ULTRAFINECOBALTOXIDE C. I. Pigment Black 13 (77322) Oxocobalt COBALT(II) OXIDE, 99+%, -325 MESH Cobalt(II) oxide,Cobaltous oxide Cobalt(II) oxide, -325 Mesh, 99+% 10GR Cobalt(II) oxideCobltous oxide Cobalt(II) oxide, 99.998% (metals basis) Cobalt(II) oxide, 99.995% (Metals basis) Cobalt(II)oxi Cobalt(II) oxide, 99.995% trace metals basis Cobalt(II) oxide >=99.99% trace metals basis Cobalt(II) Oxide Nanoparticles / Nanopowder Cobalt oxide,99% Cobalt(II) oxide, 99.995% Cobalt(II) oxide, 99.9% Cobalt(II) oxide, 99.998% Cobalt Monoxide Nanoparticles Cobalt oxide (CoO) COBALTOUS OXIDE COBALT(II) OXIDE 1,2-Benzenedimethanethiol, 4,5-dimethyl- Cobalt oxide (CoO) (8CI, 9CI, ACI) Cobalt oxide CoA Cobalt oxide,99.5%,500mesh Cobalt monooxide CoO 1307-96-6 11104-63-1 07-96-6
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